Sowing dates effects on growth habits of sesame
2001
Nit Sakunnarak(Maejo University, Chiang Mai (Thailand). Faculty of Agricultural Production. Department of Agronomy) | Wasana Wongyai(Kasetsart University. Bangkhen Campus, Bangkok (Thailand). Faculty of Agriculture. Department of Agronomy)
Sowing dates and cultivars are significant factors determining sesame growth and seed yield. The objective of this study was to examine the response of sesame cvs. Nakhonsawan and KUns 4039 to variation of sowing dates between 20 April to 20 December 1999 under natural conditions of Chiangmai. Maximum growth and seed yield were achieved by June sowing in both cutivars. Sowing after June resulted in reduction of plant height, flowering period, pod number per plant and yield. The cultivar Nakhonsawan was more sensitive to the environment between sowing dates, as their yield markedly declined to 10 percent of the maximum in late October sowing. The varation in seed yield between sowing dates was largely associated with differences in plant hight, flowering period, and number of pod per plant. The decreases in temperature, day length and possibly solar radiation are primarily responsible for the great reduction in growth and yield with successive delays in sowing.
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
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