Title: Effects of sowing dates on yield and yield components of different spring safflower (Carthamus tinctorius) cultivars as a double crop in Yasouj, Iran.
Abstract: In order to study the effects of sowing dates on yield and yield components of spring safflower, as double crop, an experiment was carried out in 2007 at the research field of agricultural college of Yasouj University. The experimental design was a factorial with randomized complete block with three replications. Four sowing dates (May 16, June1, June 16 and July 2) as a first factor and four cultivars (Arak 2811, Esfahan 14, IL111 and PI) as second factors, were used. May 16 and June 16 sowing dates had Minimum (1129 kg ha) and Maximum (1372 kg ha) grain yield respectively. Significant interactions were seen between cultivars and sowing dates for most of measured characters, cultivars of Esfahan 14 at July 2 sowing date and IL111 at May 16 sowing date showed the highest and the lowest grain yield, oil yield, grain numbers per plant and grain numbers per head respectively. Generally with respects of these results was suggested the Esfahan 14 cultivar at July 2 sowing date as the best option for double cropping of spring safflower in Yasouj region. However, because of the coinciding the harvest date of Esfahan 14, at July 2 sowing date, with the sowing date of some winter crops, such as canola, the June 16 sowing date for all cultivars suggested as second option.
Publication Year: 2008
Publication Date: 2008-01-01
Language: en
Type: article
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Cited By Count: 5
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