Effect of planting dates ,seed rates and row spacing on grain yield and yield components of a lentil (Lens culinaris) genotype in Northern Khorasan dry land condition.

Subject Areas : crop production

Seyed Morteza Azimzadeh ¹ ()

Received: 2011-04-21 Accepted : 2011-07-30 Published : 2010-10-09

Keywords: Lentil, row spacing, spring planting, autumn planting, grain yield, yield components,

Abstract :

To study the effect of planting dates, seed rates and row spacing on grain yield and yield components of a lentil genotype (Filip 92– 12L), an experiment was conducted in research farm of Islamic Azad University of Shirvan during 2008 cropping season. The experiment was performed as split factorial on the basis of randomized complete block design with 3 replications. Planting dates were autumn and spring which located in main plot. Seed rates included, 100, 150, 200, 250 and 300 seed per square meter and each seed rate planted in four row spacing of 15, 20, 25 and 30 centimeters. Seed rates and row spacing located in sub plots as factorial. Recorded traits were, biological yield, grain yield, thousand kernel weights, number of pod per plant and number of seed per plant. Results showed that the highest number of pod per plant (19) and The highest number of seed per plant (22) produced in seed rate of 250 seed/m2 and row distance of 15 cm. Seed yield in row distance of 15 cm and seed densities of 250 and 300 seed/m2 in were respectively 1130 and 1200 kg/h and the most biological yield obtained from row distance of 15 cm and seed rate of 300 seed/m2. In terms of planting date, the highest seed yield was observed in seed rate of 250 seed/m2 in autumn planting. According to the results, seed rate of 250 seed/m2 with row spacing of 15 cm is advisable for autumn or spring planting of lentil and totally autumn planting is more suitable.

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