Effects of seed rates and row spaces on grain yield and yield components of two lentil cultivars under cold dryland conditions

Shobeiri, S.S; Khorsandi, H.; Kamel, M.

doi:10.22092/idaj.2018.121553.214

Effects of seed rates and row spaces on grain yield and yield components of two lentil cultivars under cold dryland conditions

Document Type : Research Paper

Authors

¹ Seed and Plant improvement Research Department, Zanjan Agricultural and Natural Resources Research and Education Center, Zanjan, Iran

² Dryland Agricultural Research Institute, Dryland Agricultural Research Institute, Agricultural Research, Education and Extension (AREEO), Maragheh, Iran

10.22092/idaj.2018.121553.214

Abstract

In order to investigate the effect of plant density on the yield of two lentil varieties, Kimia and Bilehsevar, a split factorial experiment was conducted based on randomized complete block design with three replicates at Khodabandeh and Maragheh research stations during 2015-2017 growing seasons. Three row spacing (15, 20 and 25 cm) and six seed rates (150, 175, 200, 225, 250 and 275 seeds/m²) were considered. The results of combined analysis (two years and two regions) showed that the effects of areas, years and year × area interaction were significant for some traits such as days to flowering, days to maturity, plant height, 100 seed weight and grain yield at 1% probability level. The results showed that increasing of density up to 225 seeds/m² increased the grain yield and more density than that had not significant effect on grain yield. Also, increasing seed density up to 200 seeds/m² was improved the 100 seed weight and with increasing more than 200 seeds/m² the seed weight was decreased. Increasing the row spacing from 15 to 25 cm reduced grain yield. According to the obtained results, it can be concluded that the best row spacing and seed rate for lentil is 15 cm and 200 seeds/m², respectively.

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