Isfahan University of Technology - Journal of Crop Production and Processing
2251-8517
2251-8525
2
6
2013
3
1
Application Different of Amount Cattle Manure on Some Qualitative and Quantitative Characteristics of Sunflower Hybrids in Urmia Region
1
9
FA
Sh.
Ahmadi
College of Agriculture, Miyaneh Branch, Islamic Azad University, Miyaneh, Iran
N
A.
Hasanzade-GHort-Tape
. Agriculture and Natural Resources Research Center of West Azarbaijan, Urmia, Iran.
a.g.hassanzadeh@gmail.com
Y
R.
Aghaie-Okhchelar
College of Agriculture, Urmia University, Urmia, Iran.
N
The effects of application different amount cattle manure on some of quality and quantity characteristics such as plant height, stem diameter, head diameter, biological yield, seed yield, oil in seed and protein in seed on hybrids sunflower hybrids was investigated in 2008. This experiment was conducted at Agricultural and Natural Resource Research Station of Uremia. The experimental design was factorial based on randomized complete block design with three replications. Cattle manure levels with 0, 15, 30 and 45 t/ha as first factor and Iroflower, Alstare and Golshid varieties were as second factor. Results showed that application of cattle manure had significant effect on head diameter and biological yield at 1% and stem diameter at 5% probability levels. In addition, it was cleared that by increasing cattle manure application, stem diameter, head diameter, biological and seed yield were increased. The Golshid variety was superior in all traits except oil percentage. Interaction effect between cattle manure and variety was significant only in biological yield. There was positive significant correlation between seed yield and all the traits except oil percentage. regard to results of this experiment, it is expecting that by application of 30 t/ha cattle manure, an economical yield could be obtained from sunflower hybrids.
Cattle Manure, Quality and Quantity Traits, Sunflower.
http://jcpp.iut.ac.ir/article-1-1730-en.html
http://jcpp.iut.ac.ir/article-1-1730-en.pdf
Isfahan University of Technology - Journal of Crop Production and Processing
2251-8517
2251-8525
2
6
2013
3
1
Effect of Ni and Pb on Chlorophyll Content and Metals Accumulation in Medicago Sativa
11
20
FA
F.
Amini
Department of Biol., College of Sci., Arak Univ., Arak, Iran.
f-amini@araku.ac.ir
Y
M. R.
Amirjani1
Department of Biol., College of Sci., Arak Univ., Arak, Iran.
N
Heavy metals have a important roles to environmental pollution as a result of human activities. Higher concentration of heavy metals in environment lead to a toxicity symptoms and growth inhibition in most plants. The aims of this study was Ni and Pb accumulation in alfalfa plants when its exposure in this metals and the effects of this heavy metals on photosynthetic pigments. In this study seeds of Alfalfa (Medicago sativa) were raised in the pots and plants grown after 21 days in 2-3 leaves stage were treated with the concentration of 0, 2, 4, 6 and 8mM NiCl2 and PbCl2. Then take place remove plants in 2stages (2 and 15 days after treatment) and were measured and compared chlorophyll content and heavy metal uptake in roots and shoots of plants. The results showed that significant decrease in total chlorophyll content in plants treated compaired with the control plants. Also that significant increasing Ni and Pb concentration in plant treated compaired with the control plant. This increase in shoot parts more than roots in both treatment and different concentration . It seems that play somewhat Alfalfa plant as a accumulator for a Ni and Pb metals.
Accumulator, Alfalfa, Heavy metals, Ni, Pb, Photosynthesis.
http://jcpp.iut.ac.ir/article-1-1731-en.html
http://jcpp.iut.ac.ir/article-1-1731-en.pdf
Isfahan University of Technology - Journal of Crop Production and Processing
2251-8517
2251-8525
2
6
2013
3
1
Effect of N-Fertilizer Rates and Timing on Grain Yield andComponents of Sunflower
21
31
FA
M.
Sedaghat
Department of Agron. and Plant Breed., College of Agric., Isf. Univ. Technol., Isfahan, Iran.
mojde.sedaghat@gmail.com
Y
J.
Razmjo
Department of Agron. and Plant Breed., College of Agric., Isf. Univ. Technol., Isfahan, Iran.
N
Y.
Emam
Department of Agron. and Plant Breed., Shiraz Univ, Shiraz, Iran.
N
This experiment was conducted to determine the effects of time and rate of nitrogen fertilizer (urea) application on yield and yield components and quality of sunflower (Helianthus annuus L. )cv.Euroflor. A field experiment was carried out at College of Agriculture, Shiraz University during Summer 2009. The experimental design was a factorial based on a randomized complete block design with 3 replications. Five nitrogen rates (0, 50, 100, 150, 200 kilograms N per hectare) and four split application of nitrogen fertilizer (T1 “1/3 before planting, 1/3 V4 , 1/3 R1” , “T2 1/3 before planting, 1/3 V4 , 1/3R5.8” , T3 “1/3 before planting, 1/3R2 , 1/3 R5.8 ”, T4 “1/3 V4 , 1/3 R1 , 1/3 R8 ”) were used. Chlorophyll content, head diameter, plant height, number of grains per head, thousand grain weight, dry matter yield, harvest index and grain yield were determined after harvesting. There was a significant difference within various rate of nitrogen application. Significantly highest plant length, leaf area index, total dry weight, chlorophyll content, head diameter, number of grains per head, thousand grain weights, grain yield and dry matter yield were recorded at 200 kilogram N per hectare followed by 150 kilogram N per hectare. However, there was no significant difference between 150 and 200 kg/ha N. Split application of nitrogen had no significant effect on plant characteristics except on grain yield, the highest grain yield was obtained from T1 (1/3 before planting, 1/3 V4, 1/3 R1) treatment.
Grain yield, Nitrogen fertilizer, Sunflower, Yield components, Split application.
http://jcpp.iut.ac.ir/article-1-1732-en.html
http://jcpp.iut.ac.ir/article-1-1732-en.pdf
Isfahan University of Technology - Journal of Crop Production and Processing
2251-8517
2251-8525
2
6
2013
3
1
Investigation of the Best Method for Winter Pruning of Kiwifruit (Actinidia deliciosa L., cv. Hayward)
33
41
FA
B.
Adouli
Citrus Res. Inst., Ramsar, Iran.
adoulibabak@yahoo.com
Y
H.
Ebadi
Citrus Res. Inst., Ramsar, Iran.
N
B.
Moradi
Citrus Res. Inst., Ramsar, Iran.
N
Winter pruning of kiwifruit has significant effect on yield and quality of fruits. But many growers do not follow a correct pattern for this practice. To determine the effect of this pruning on performance and introducing the appropriate method to do the pruning, a two-year project was carried out as a RCBD with two factors [number of canes per leader (6, 8, 10 and 12) and number of left buds for each cane (6, 12 and 18)] with three replications and two vines of Hayward cultivar for each replication of each treatment. For pollination of the flowers, Tomuri variety was planted with 1: 8 ratio with Hayward cultivar. Obtained results showed that both factors had significant effects on yield and fruit size. The best fruits were produced by vines that had 10 or 12 canes per leader and 12 buds on each cane. By these treatments, the yield was improved approximately 5 t/ha more than local orchards. Quality of the fruits was not affected by the studied factors.
Kiwifruit, Hayward, winter pruning, Vine, Cane.
http://jcpp.iut.ac.ir/article-1-1733-en.html
http://jcpp.iut.ac.ir/article-1-1733-en.pdf
Isfahan University of Technology - Journal of Crop Production and Processing
2251-8517
2251-8525
2
6
2013
3
1
Description of Some Ecological Factors in Three Forest Sites in Lorestan Province and Their Impact on Myrtle (Myrtus communis L.) Essential Oil Yield and Chemical Components
43
52
FA
Z.
Mir-Azadi
MSc. of Forestry, Lorestan Univ., Khorramabad, Iran.
N
B.
Pilehvar1
MSc. of Forestry, Lorestan Univ., Khorramabad, Iran.
pilehvar.b@lu.ac.ir
Y
A. A.
Tajalli
. Department of Agron. And Plant Breed., College of Agriculture, Islamic Azad Univ., Shahr-e Rey Branch, Tehran, Iran
N
Due to the side effects of chemical drugs, special attention is given recently to pharmaceutical plants. Myrtle (Myrtus communis L.) is one of the valuable pharmaceutical plants, which is distributed over the vast areas of Iran. Yield and components of essential oil of this plant is dependent on ecological and genetic factors. In order to describe some ecological factors that affect myrtle in Lorestan province, three forest sites (Sepiddasht, Chame-moord, and Hamzeh Camp) were selected. Some effective ecological factors on type of essential oil were measured and compared among the sites. To compare the yield and components of essential oil, myrtle leaves were collected during flowering stage in each site. Leaves were dried in open air conditions and the oil was extracted by distillation. Yield of essential oil was calculated and its components were identified by GC and GC/MS. Results showed that maximum yield belongs to Sepiddasht site. The altitude and soil Na, P, and organic carbon content of this site is quite different from other two sites. The main components of essential oils of these three sites had considerable differences. The amount of 9,10 anthracenedione was 29.1% in Sepiddasht site, while it was not found in the oil of Chame-moord site. It seems that differences in ecological and soil properties of the tree sites could have major effect on essential oil yield and its composition.
Ecological factors, α-pinene, Cineol 1,8.
http://jcpp.iut.ac.ir/article-1-1734-en.html
http://jcpp.iut.ac.ir/article-1-1734-en.pdf
Isfahan University of Technology - Journal of Crop Production and Processing
2251-8517
2251-8525
2
6
2013
3
1
Study of Diversity and Evaluation of Relationships Between Yield and Yield Components of Rapeseed via Multivariate Methods
53
63
FA
B.
Roostabaghi
N
H.
Dehghan
dehghanr@modares.ac.ir
Y
B.
Alizadeh
N
N.
Sabaghnia
N
Using multivariate statistical methods in evaluation of various traits in several genotypes has caused the discovery of different aspects of agronomic crops’ traits. In order to study diversity and interrelationships of yield and yield components of rapeseed, 36 genotypes of rapeseed were used in a 6 × 6 simple lattice design layout with two replications. Results of primary analysis of variance indicated that it was possible to analyze the dataset via randomized complete blocks design. In general, 13 traits, which were related to yield and yield components, were evaluated in this investigation. Results of dataset analysis showed that there was considerable variation among the genotypes. Seed yield of rapeseed had positive and significant correlation with 1000-seed weight, harvest index, number of secondary branches in plant and maturity period. In stepwise regression of yield with other traits, the 1000-seed weight and days to end of flowering described most of the variations of seed yield. Also, results of path analysis indicated that 1000-seed weight and days to end of flowering had direct and remarkable effect on seed yield. Cluster analysis and multivariate analysis of variance divided the genotypes into five distinct groups. Based on seed yield and 1000-seed weight, the genotypes of fifth cluster and according to highest number of pods per plant, the genotypes of third cluster were considerable. In general, the most important trait which affected seed yield of rapeseed was 1000-seed weight, which could be used for indirect selection of seed yield in segregating generations.
Cluster analysis, Path analysis, Stepwise regression, Simple correlation.
http://jcpp.iut.ac.ir/article-1-1735-en.html
http://jcpp.iut.ac.ir/article-1-1735-en.pdf
Isfahan University of Technology - Journal of Crop Production and Processing
2251-8517
2251-8525
2
6
2013
3
1
Segregation Pattern of Aroma in Rice and Molecular Selection for It
65
72
FA
GH.
Kiani
ghkiani@gmail.com
Y
Rice is the staple food in Iran. Aroma is a character that has an important role in consumer’s preference and rice price. In this research, inheritance of aroma in F2 generation of crosses between aromatic Sang Tarom with Neda and Nemat non-fragrant varieties was investigated. In this study, along with phenotypic evaluation based on alkaline test from leaf samples, the genetic evaluation was conducted using aroma marker. Based on the results, phenotypic evaluation in F2 segregating populations revealed 3: 1 (non-aromatic: aromatic) ratio. In addition, in molecular evaluation, segregation ratio of 1: 2: 1 (aromatic: heterozygous: non-aromatic) was observed using aroma marker. These results indicate that single recessive gene controls aroma in Sang Tarom variety. Also, marker-assisted selection was used for identification of homozygous aromatic plants in F2 populations. Thus, after selecting phenotypic suitable plants, the homozygous aromatic plants in aforementioned populations were screened at molecular level.
Genetics of aroma, Marker-assisted selection.
http://jcpp.iut.ac.ir/article-1-1737-en.html
http://jcpp.iut.ac.ir/article-1-1737-en.pdf
Isfahan University of Technology - Journal of Crop Production and Processing
2251-8517
2251-8525
2
6
2013
3
1
Evaluation of the Effect of Crop Rotations on Yield and Yield Components of Bread Wheat (Triticum aestivum L. cv. Darya)
73
85
FA
H. A.
Fallahi
hafallahi@gmail.com
Y
U.
Mahmadyarov
N
H.
Sabouri
N
M.
Ezat-Ahmadi4
N
Grain yield in wheat is influenced directly and indirectly by other plant characteristics. One of the main goals in wheat breeding programs is increase of grain yield. Considering the role of crop rotation in increasing grain yield, and in order to study the difference between crop rotations for wheat yield and yield components (Darya cultivar), an experiment was conducted with six rotation treatments (wheat-chickpea-wheat, wheat-cotton-wheat, wheat-watermelon-wheat, wheat-wheat-wheat, wheat-canola-wheat and wheat-sunflower-wheat), as a randomized complete blocks design with six replications, at Research Farm of Agricultural Research Station of Gonbad Kavous, Iran, during 2004 to 2008. Results showed that number of spikes per m-2, number of kernels per spike and mean kernel weight were important traits in all rotations. Also, selection of different traits could be changed depending on the experiment’s conditions, as in the wheat-wheat-wheat, wheat-watermelon-wheat and wheat-sunflower-wheat rotations the kernel weight, grain filling period and vegetative growth period are useful for indirect selection of breeding strategy while in wheat-canola-wheat and wheat-chickpea-wheat rotations the number of kernels per spike, number of spikes per m2, grain filling period and vegetative growth period are more important.
Vegetative growth period, Path analysis, Breeding programs.
http://jcpp.iut.ac.ir/article-1-1736-en.html
http://jcpp.iut.ac.ir/article-1-1736-en.pdf
Isfahan University of Technology - Journal of Crop Production and Processing
2251-8517
2251-8525
2
6
2013
3
1
Effects of Sowing Date and Limited Irrigation on Yield and Yield Components of Five Rainfed Wheat Varieties in Maragheh Region
87
97
FA
A. R.
Tavakkoli
Agric. Eng. Res. Department, Agricultural Research Center of Semnan Province (Shahrood), Shahrood, Iran.
art.tavakoli@gmail.com
Y
In order to investigate the effects of sowing date (SD) and single irrigation (SI) amounts on yield and yield components of rainfed wheat varieties, a field experiment was conducted as split-split plots arranged in a randomized complete blocks design with three replications during 2002-2004 at main station of Dryland Agricultural Research Institute in Maragheh, Iran. Treatments included three sowing dates (early, normal and late), three levels of single irrigation (rainfed, 50 mm and 100 mm only at planting time) and five wheat varieties (three numbered lines, Azar2 and double-cross Shahi). Results revealed that interactions of SD, SI and wheat varieties were significant for grain yield, number of kernels per spike and water productivity (P≤0.01). Single irrigation at normal planting time increased grain yield, straw, biomass, harvest index, and water productivity. Grain yield and water productivity were increased by 131% and 84.8%, respectively. Single irrigation at late planting time was not significant on agronomic traits and produced low water productivity. Regarding the reaction of wheat to planting date and single irrigation, results showed that normal single irrigation can improve yield, yield components and water productivity index. The effectiveness of single irrigation under dryland conditions can be observed in all wheat cultivars. Although this effectiveness on yield and yield components is observable, but it is necessary to select the time of irrigation properly.
Single irrigation, Sowing date, Water productivity.
http://jcpp.iut.ac.ir/article-1-1738-en.html
http://jcpp.iut.ac.ir/article-1-1738-en.pdf
Isfahan University of Technology - Journal of Crop Production and Processing
2251-8517
2251-8525
2
6
2013
3
1
Study on Genotype×Environment Interaction through GGE Biplot in Spring Safflower (Carthamus tinctorius L.)
99
108
FA
S. S.
Pourdad
sspourdad@yahoo.com
Y
M.
Jamshid Moghaddam
N
GGE (genotype + genotype×environment) biplot is one of the new graphical methods to study genotype×environment interaction in which the effects of genotype and G×E interaction are not separated and selection is based on both of these effects. In the present research, GGE biplot was used to study 14 safflower genotypes over six research stations under water stress and non-stress conditions in spring planting. The results of analysis of variance showed that 93.9% of total variation was due to environment and 6.1% due to genotype and G×E interaction. The polygon-view of GGE biplot recognized six superior genotypes and four mega-environments. The best genotypes within each environment were determined. The seven genotypes located in sectors that no environment was placed indicated that these genotypes were poor in most of the environments. Simultaneous evaluation of yield and stability through average environment coordinate biplot showed that Hartman, Gila and Sina with high seed yield had higher yield stability. Hartman was the nearest variety to ideal genotype (assumed genotype with the highest yield and stability) and Gila and Sina varieties were also close to ideal genotype, too. Biplot of correlation among environments revealed that Shirvan and Kohdasht were similar environments, so that water stress and non-stress conditions were not able to make differences between these locations. Zanjan, Ghamlo, Kohdasht and Sararood environments under non-stress conditions had higher discriminating ability.
Yield stability, Environmental stress, Parametric and non-parametric statistics.
http://jcpp.iut.ac.ir/article-1-1739-en.html
http://jcpp.iut.ac.ir/article-1-1739-en.pdf
Isfahan University of Technology - Journal of Crop Production and Processing
2251-8517
2251-8525
2
6
2013
3
1
Quantifying Response of Chickpea Emergence to Air Temperature
109
120
FA
B.
Torabi
Dept. of Agron., Vali-e- Asr Univ. of Rafsanjan, Rafsanjan, Iran.
ben_torabi@yahoo.com
Y
A.
Soltani
Dept. of Agron., Gorgan Univ. of Agric. Sci. and Nat. Resour., Gorgan, Iran.
N
This study was conducted to evaluate the response of emergence to temperature in 4 chickpea cultivars (Beauvanij, Arman, Hashem and Jam) using 12 sowing dates (one per month) under Gorgan environmental conditions (northern Iran) in 2001-2002 and 2002-2003. A dent-like function was used to quantify the response of emergence to temperature. Using this function, the cardinal temperatures (base, lower optimum and higher optimum) and biological day requirement for emergence were determined for different percentiles. Ceiling temperature was taken constantly as
39 ˚C. There was no significant difference between cultivars for cardinal temperatures of 50% population and they were estimated as 4.5, 20.2 and 29.0 ˚C, respectively. Base temperature of 3.4 and 3.0 ˚C, lower optimum of 23.8 and 20 ˚C and higher optimum of 30.3 and 30.0 ˚C were estimated for 10 and 90% populations without significant difference between cultivars. Cultivar differences for biological day requirement of emergence were not significant for 10, 50 and 90% populations. Biological day requirement was estimated as 4.4, 6.1 and 7.9 days for 10, 50 and 90% populations, respectively. Chickpea emergence could be predicted for different percentiles using estimated parameters of this study and weather data.
Emergence rate, Cardinal temperatures, Biological day.
http://jcpp.iut.ac.ir/article-1-1740-en.html
http://jcpp.iut.ac.ir/article-1-1740-en.pdf
Isfahan University of Technology - Journal of Crop Production and Processing
2251-8517
2251-8525
2
6
2013
3
1
Investigation of Sensitivity of Some Pulses and Agronomic Crops to Soil Residue of Idosulfuron-mesosulfurun Herbicide
121
131
FA
E.
Izadi-Darbandi
Deprtment of Agron. and Plant Breed., College of Agric., Ferdowsi Univ. of Mashhad, Mashhad, Iran.
eizadi2000@yahoo.com
Y
To study the sensitivity of chick pea, bean, lentil, rapeseed, sugarbeet and tomato to soil residual concentration of Idosulfuron-mesosulfurun herbicide, an experiment was carried out under controlled conditions at the College of Agriculture, Ferdowsi University of Mashhad, Iran, in 2010. The studied factors were the 6 mentioned crops, and 7 levels of soil residual concentration of Idosulfuron-mesosulfurun herbicide (0, 0.0015, 0.0037, 0.0079, 0.015, 0.031 and 0.047 mg per kg of soil). The factorial experiment was carried out as a completely randomized design with three replications. Crops' emergence percentage was determined one week after their emergence. Plants' survival percentage and shoot and root biomass production were measured 30 days after their emergence. Results showed that all mentioned characteristics decreased significantly (P<0.01) in the presence of soil residue of the herbicide. Increasing Idosulfuron-mesosulfurun residual concentration in soil decreased emergence and shoot and root biomass production. Bean had the lowest shoot (44%) and root (66.78%) biomass loss and tomato had the highest shoot (96.38%) and root (89.64%) biomass loss. Based on ED50 index, pea (0.0079 mg/kg soil) was the most tolerant and tomato (0.0003 mg/kg soil) was the most susceptible crop to soil residues of Idosulfuron-mesosulfurun, and other crops ranked in between as: tomato< sugarbeet< rapeseed< lentil< bean< pea. In general, these results showed that soil residue of Idosulfuron-mesosulfurun can injure rotation crops and it is important to consider their sensitivity in rotation programming.
Herbicide residue, Sugarbeet, Lentil, Rapeseed, Tomato, Bean, Pea.
http://jcpp.iut.ac.ir/article-1-1741-en.html
http://jcpp.iut.ac.ir/article-1-1741-en.pdf
Isfahan University of Technology - Journal of Crop Production and Processing
2251-8517
2251-8525
2
6
2013
3
1
Effect of Some Plant Growth Regulators on Delay Leaf Senescence and Increasing Vase Life of Alstroemeria Cut Flowers (Alstroemeria Hybrida Cv. Fortaleza)
133
143
FA
M.
Mackvandi
Department of Hort., College of Agric., Isf. Univ. Technol., Isfahan, Iran.
makvandi.2008@yahoo.com
Y
A. A.
Ramin
Department of Hort., College of Agric., Isf. Univ. Technol., Isfahan, Iran.
N
M.
Mobli
Department of Hort., College of Agric., Isf. Univ. Technol., Isfahan, Iran.
N
Alstroemeria is one of the most beautiful cut flowers in the world that has allocated major part of cut flowers exports to itself. One of the main problems in the trade this flowers is a premature yellowing of the foliage. Therefore, the present study was designed to investigate increasing the vase life and delay of leaf yellowing Alstroemeria cut flowers cultivar "Fortaleza". The experiment was conducted in split plot based on completely randomized design with three replicates. Flower branches have treated with solutions containing zero, 25, 50, 75 and 100 mg/l of gibberelic acid (GA3) or benzyl adenine (BA) for 24 hours. During the testing, the effect of treatments was evaluated by recording traits related to the primary florets, leaves and inflorescence whole. The results showed that, GA3 treatments had far more effective on improving physico chemical characteristics, delaying leaf yellowing and flower longevity than BA concentrations. According to this results gibberellic acid treatments, especially the concentration 50 mg/l can be introduced as a short-term treatment for retention of chlorophyll, delaying leaf senescence and enhancing the vase life of Alstroemeria cut flowers.
Alstroemeria, benzyl adenine, gibberellic acid, Vase life, Leaf senescence.
http://jcpp.iut.ac.ir/article-1-1742-en.html
http://jcpp.iut.ac.ir/article-1-1742-en.pdf
Isfahan University of Technology - Journal of Crop Production and Processing
2251-8517
2251-8525
2
6
2013
3
1
Effect of Deficit Irrigation on Production of Two Cotton Cultivars in Isfahan Province
145
153
FA
M.
Jafaraghaei
Agric. and Natur. Resour. Res. Center, Isfahan, Iran.
majidjafaraghaei@yahoo.com
Y
A. H.
Jalali
Agric. and Natur. Resour. Res. Center, Isfahan, Iran.
N
To investigate the effect of different irrigation levels on yield and yield components of two cotton cultivar, a two-year experiment (2006-2007) was carried out at Agricultural Research Center of Kabotarabad, Isfahan, Iran. In this experiment, the strip split-plot design, as randomized complete blocks with four replications, was used. Main plots consisted of six levels of irrigation (T1 to T6, based on cumulative evaporation from Class A pan, at three growth periods of cotton) and subplots were two cotton cultivars (B557 and Tabladyla). Results indicated significant effects of irrigation level on yield. The T6 treatment (irrigation at three stages: from four-leaf stage to early flowering, flowering until boll opening, and beginning of boll opening until the end of growth, based on 150, 70 and 110 mm cumulative evaporation from Class A pan) was superior to other treatments in terms of lint yield and water use efficiency (5113 kg/ha and 0.52 kg/m3, respectively). Higher boll weight and number per plant was the main reason for significant yield advantage in this treatment. Significant difference between the two experimental cultivars and interaction of cultivar and irrigation treatments, in terms of different traits, was not observed. B557 cultivar, with 3237 kg/ha lint yield in the first harvest, produced significantly higher yield than Tabladyla cultivar, with 2481 kg/ha lint yield. The results of this study showed that deficit irrigation at vegetative growth stage (four-leaf stage to early flowering) of cotton not only led to improved yield, but also saved considerable amount of irrigation water.
Water stress, Yield, Boll.
http://jcpp.iut.ac.ir/article-1-1743-en.html
http://jcpp.iut.ac.ir/article-1-1743-en.pdf
Isfahan University of Technology - Journal of Crop Production and Processing
2251-8517
2251-8525
2
6
2013
3
1
Effect of Seed Priming on Some Qualitative and Quantitative Traits of Two Sugarbeet (Beta vulgaris L.) Cultivars
155
165
FA
J.
Hamzei
Department of Agron. and Plant Breed., College of Agric., Bu-Ali Sina Univ., Hamedan, Iran.
j.hamzei@basu.ac.ir
Y
R.
Shayanfard
Department of Agron. and Plant Breed., College of Agric., Bu-Ali Sina Univ., Hamedan, Iran.
N
K.
Fotouhi
Agric. and Natur. Rousour. Res. Center of Miandoab
N
In order to study the effects of seed pre-treatment with potassium nitrate (KNO3), gibberellic acid (GA3) and hydro-priming on growth and yield of two sugarbeet cultivars, an experiment was conducted at Miyandoab Agricultural and Natural Resources Research Station in 2009 growing season. The experimental design was a factorial based on randomized complete blocks design with three replications. Two sugarbeet cultivars (Jolgeh and 7233-P29) and priming treatments at five levels (P1: non-priming or control, P2: priming with 3% KNO3 solution, P3: priming with 200 mg/L GA3, P4: priming with 3% KNO3+ 200 mg/L GA3 and P5 hydro-priming) were considered. Root yield, shoot weight, impure sugar yield, pure sugar yield, impure sugar percent, pure sugar percent, coefficient of sugar extraction, alkality and molasses sugar content were measured and evaluated. Results showed that the effect of cultivar was significantly different for root yield, shoot weight and pure sugar yield. Also, priming treatment significantly affected root yield, pure sugar yield and impure sugar yield. But, the cultivar × priming interaction wasn't significant for none of the measured traits. Comparison of means showed that root weight and pure sugar content of 7233-P29 cultivar was 14% and shoot weight was 34% more than Jolgeh cultivar. Among the priming treatments, maximum root yield (63.2 ton/ha), impure sugar content (10.7 ton/ha) and pure sugar content (8.1 ton/ha) was obtained from hydro-priming treatment. Therefore, it seems that hydro-priming, as an easiest method of seed pretreatment, can be helpful in improving the qualitative and quantitative yield of sugarbeet.
Pretreatment, Gibberellic acid, Potassium nitrate, Pure sugar percent, Impure sugar percent, Coefficient of sugar extraction.
http://jcpp.iut.ac.ir/article-1-1744-en.html
http://jcpp.iut.ac.ir/article-1-1744-en.pdf
Isfahan University of Technology - Journal of Crop Production and Processing
2251-8517
2251-8525
2
6
2013
3
1
Study of Path Coefficients Analysis for Grain Yield and Yield Components in Durum Wheat under Drought Stress and Non-stress Conditions
167
177
FA
M.
Golabadi
m.golabadi@khuisf.ac.ir
Y
A.
Arzani
N
S. A. M.
Mirmohammadi Maibody
N
The purpose of this study was to describe the correlations between wheat grain yield (GY) and its components, under environmental stress and non-stress conditions, and recognition of the most effective yield components and their development stages in making interaction with the environment. Two generations of F3 and F4, produced from a cross between Oste-Gata (drought tolerant) and Massara-1 (susceptible) genotypes, were used for evaluation in two years (2005 and 2006) at Research Farm of Isfahan University of Technology, Isfahan, Iran. Analysis of correlation of yield and yield components showed that grain yield was significantly correlated with grain weight per spike, number of grains per spike and number of spikes per m2. Results of Tai analysis revealed that under stress, grain weight per spike and under non-stress condition, number of spikes per m2 had the highest direct effect on GY in both generations. Assay of genotypic components showed that under stress conditions, grain weight per spike and number of grains per spike, and under non-stress conditions, number of spikes per m2 had the highest effect on genotype × environment interaction and their developmental stages (grain filling, reproductive and pollination). In non-stress condition, spike number per m2 had the same effect. Analysis of environmental components indicated that the most environmental sensitive period of plant growth was grain filling stage. Large difference between early and late growth stages is related to high sensitivity of grain filling period and reproductive stage to environmental conditions and the occurrence of drought stress at reproductive stage. Therefore, trend of grain yield variations under stress conditions was affected by grain weight per spike and showed the highest amount of environmental interaction at its growth stage
Tai path coefficients, Environmental sensitivity, Genotypes crossing.
http://jcpp.iut.ac.ir/article-1-1745-en.html
http://jcpp.iut.ac.ir/article-1-1745-en.pdf
Isfahan University of Technology - Journal of Crop Production and Processing
2251-8517
2251-8525
2
6
2013
3
1
Changes in Growth and Oil Yield Indices of Rapeseed (Brassica napus L., cv. Hyola 401) in Different Concentrations andTimes of Application of Supplementary Nitrogen Fertilizer
179
190
FA
P.
Tousi Kehal
pari_toosi@yahoo.com
Y
M.
Esfahani
N
B.
Rabiei
N
M.
Rabiei
N
In order to investigate the effect of concentration and time of supplementary nitrogen fertilizer spray on growth indices of rapeseed (cv. Hyola 401), a field experiment was conducted at Rice Research Institute of Iran as a randomized complete blocks design with 16 treatments and 3 replications in 2008-2009. The treatments included concentration of nitrogen fertilizer (urea) at two levels (5 and 10 ppm) in seven levels of application time:1) spraying at 6-8- leaf stage, 2) beginning of stem elongation, 3) prior to flowering, 4) at 6-8- leaf stage + beginning of stem elongation, 5) at 6-8- leaf + prior to flowering, 6) beginning of stem elongation+ prior to flowering, and 7) at 6-8- leaf + beginning of stem elongation+ prior to flowering, which were compared with two control treatments (no fertilizer nitrogen and conventional soil fertilization). Results showed that significant difference was observed between spray treatments including concentration and times of nitrogen application, between controls and between controls with spray treatments, of grain and oil yield, crop growth rate (CGR), leaf area index (LAI) and leaf area duration (LAD). Application of nitrogen (10 ppm) at the beginning of stem elongation+ prior to flowering stages produced maximum grain yield (4221.7 kg/ha) and oil yield (1771.1 kg/ha). Spray treatments produced maximum oil yield index (15.3%) compared to controls. Maximum LAI (6.9 and 5.6 respectively), CGR (15.2 and 14.3 g/m2.10 GDD, respectively) and LAD (1204 and 1029 cm2/10 GDD, respectively) were also obtained from spray application of nitrogen (10 ppm) at the beginning of stem elongation+ prior to flowering stages and at 6-8-leaf stage + beginning of stem elongation + prior to flowering. According to the results of the present investigation, it seems that foliar application of supplementary nitrogen fertilizer at the end growth stages (beginning of stem elongation and prior to flowering) of rapeseed plants may help to enhance growth indices, oil yield index and grain yield.
Leaf area index, Oil yield, Management of fertilizer application.
http://jcpp.iut.ac.ir/article-1-1746-en.html
http://jcpp.iut.ac.ir/article-1-1746-en.pdf