Volume 14, Issue 1 (4-2024)                   2024, 14(1): 1-16 | Back to browse issues page


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Shirani rad A H, Safavi Fard N. Study on the Effects of Planting Date and Density and Humic Acid on Quantitative and Qualitative Traits of Camelina Oil-seed Plant. Journal of Crop Production and Processing 2024; 14 (1) :1-16
URL: http://jcpp.iut.ac.ir/article-1-3174-en.html
Seed and Plant Improvement Institute (SPII), Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran , shirani.rad@gmail.com
Abstract:   (148 Views)
Investigating the role of agronomic factors is very important in improving the quantitative and qualitative characteristics of oilseeds. In order to determine the composition of fatty acids and grain yield in camelina (Camelina sativa L.), a two-year experiment (2017-19) was conducted in Karaj, Iran. The experiment was carried out as a split plot-factorial in a randomized complete block design with three replications, where the planting date (7th Oct., 22nd Oct., and 6th Nov.) in main plots and planting density (40, 50 and 60 plants m-2) and humic acid (including non-application and application of 0.003 HUMAX 95-WSG) in two stages of 4-leaves and stem elongation were considered in sub-plots. The highest grain yield with an average of 2485 kg ha-1 was obtained on 7th Oct., at 40 plants m-2 and application of humic acid. In addition, application of humic acid in delayed planting date (6th Nov.) and 40 plants m-2 showed the highest positive effect on 1000-grain weight and grain yield (wit increases of 17.8 and 32.7%, respectively) compared to non-application. Also, application of humic acid in delayed planting date (6th Nov.) and 40 plants m-2 showed the highest percentage increase of oleic acid (0.9%) compared to non-application. Furthermore, application of humic acid in all normal (7th Oct.), relatively late (22nd Oct.) and late (6th Nov.) planting dates, caused a significant decrease of erucic acid and glucosinolate concentrations compared to non-application. Therefore, application of humic acid is beneficial to camelina growth and grain yield, particularly when sown in a delayed date. 
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Type of Study: Research | Subject: General

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