Evaluation the effect of planting density on yield of different cultivars of sesame
Subject Areas : Agroecology Journal
karim reyahi kiassari
1
,
shahriar yazdanpanah
2
*
,
sobhan ghanbari
3
,
abbasali andarkhor
4
1 - Agriculture, Gorgan Faculty of Plant Production
2 - Ferdowsi University Mashhad
3 - Islamic Azad University, Qaemshahr, Islamic Republic of Iran
4 - Faculty member of Mazandaran Research Center
Keywords: Performance components, competition, oilseeds, protein percentage, number of plants per unit area,
Abstract :
Sesame is an annual plant and its height is up to one meter and it is drought resistant .In order to investigate the effect of different planting densities and different sesame cultivars on yield components and percentage of experimental oil as split plot in the form of a basic design, complete random blocks with 9 treatments and 4 replications were performed in 2012 in Sari. Experimental factors including densities of 40, 50, and 60 cm between rows were considered as the main factor and three cultivars of sesame cultivars named Naz, Ultan and Yekta were considered as sub-factors. The measured traits included plant height, harvest index, oil percentage, and protein percentage. The results showed that the effect of cultivars on oil percentage, protein percentage at 1% probability level was significant. The effect of density on plant height is significant at 1% probability level and the number of seeds per capsule at 5% probability level is significant. Also, the results of the mean comparisons showed that the unique sesame cultivar was superior in terms of parameters such as height, number of capsules and seeds in the capsule, and its yield was superior in number and cute cultivar in terms of harvest index. As a general principle, it can be concluded that in selecting planting density, the characteristics of cultivars should be considered and the density should be adjusted in such a way that while using the plant from environmental factors, competition between plants is minimized and maximum economic performance is achieved.