Volume 3, Issue 7 (6-2013)                   JCPP 2013, 3(7): 123-132 | Back to browse issues page

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Majd S, Emam Y. Effects of Cycocel and Nitrogen Application on Yield and Yield Components of Autumn-Grown Oilseed Rape at Different Plant Densities . JCPP. 2013; 3 (7) :123-132
URL: http://jcpp.iut.ac.ir/article-1-1809-en.html
Dept. of Crop Prod. & Plant Breed., College of Agric., Shiraz Univ., Shiraz, Iran. , yaemam@gmail.com
Abstract:   (5027 Views)
In this research, which was carried out as two experiments (in the field and greenhouse) at Research Farm of College of Agriculture, Shiraz University, Shiraz, Iran, in 2009-2010 growing season, the effects of different levels of nitrogen, plant density and cycocel application on yield and yield components of autumn-grown oilseed rape (Talaye cultivar) were investigated. The field experiment was designed as split-split plot based on completely randomized blocks design. Treatments included nitrogen level (80, 140, 200 and 260 kg/ha) as the main plot, plant density (70 and 90 plants/m2) as sub-plot and cycocel rate (0, 1.4 and 2.8 L/ha) as sub- subplot. The greenhouse experiment, which was arranged as a factorial based on complete randomized design, included nitrogen level (0, 50, 100, 150 and 200 kg/ha) and cycocel rate (0, 1.4 and 2.8 L/ha). Results showed that the highest seed yield was achieved at 200 kg N/ha, 2.8 L/ha cycocel and plant density of 90 plants/m2 (533.17, 533.96 and 521.6 g/m2, respectively). Application of 2.8 L/ha cycocel was associated with increased number of siliques per plant and final plants dry weight. Increasing plant density from 70 to 90 plants/m2 was associated with decreased number of siliques per plant, plant dry weight and number of seeds per silique. It appears that application of 200 kg N/ha, 2.8 L/ha cycocel and plant density of 90 plants/m2 could be recommended for maximum grain yield of autumn-grown rapeseed cv. Talaye, in agroclimatic conditions similar to this research
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Type of Study: Research | Subject: General

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