اثرات اندازه‌ی بنه و تراکم کاشت بر عملکرد و اجزای عملکرد زعفران (Crocus sativus L.)

In order to investigate the saffron yield and its components at different levels of corm size and plant density, an experiment was conducted at East Azarbaijan Agricultural Research Center, as a factorial experiment based on RCBD (Randomized Complete Block Design) with three replications for two years (2012-2013). First year was considered for better plant establishment. Factors consisted of different corm sizes based on the diameter of corms (A1=2-4 cm , A2=4-6 cm), corms spacing between rows (B1=10, B2=20, B3=30 cm), corms spacing within rows (C1=7, C2=14 cm). Variables such as number of flowers per unit area, dry weight of stigma, total yield, evaluated on saffron plants. Results showed that all traits were affected significantly by corm size. Big corms and 7 cm corms spacing within row created maximum flower number per unit area. dry weight of stigma was affected significantly by the interaction between corm size with corms spacing within row so that bigger corms with less spacing were superior. Maximum yield was obtained from the bigger corms and 7 cm corms spacing within row and 10 cm corms spacing between rows.