Evaluation of the effect of different levels of plant density and N fertilizer on yield and yield components of cumin (Cuminum cyminum L.)

Subject Areas : Journal of Plant Ecophysiology

یدالله قادری ¹ , محمد مقدم ^{2 *}

1 - دانشگاه آزاد دامغان
2 - دانشگاه فردوسی مشهد

Received: 2014-12-04 Accepted : 2015-01-27 Published : 2016-01-01

Keywords: Cuminum cyminum L, Number of umbel, Thousand seed weight, Seed yield,

Abstract :

This experiment was conducted to assay the effect of plant density and nitrogen fertilization on growth and yield of cumin during growing season 2012 at field experimental of Nasra conservatory in Golge Rokh Torbat Heydarei. The experiment was done as factorial based on randomized complete block design with three replications; which factors included four levels of nitrogen fertilization (0, 50, 100 and 150 kg/ha) and three levels of plant density (50, 67 and 100 plant/m2). The results variance analysis showed that the effect of nitrogen fertilization and planting density had significant effect on yield and yield components of cumin. The highest plant height and seed per plant were obtained from 67 plant/m2 with 50 kg/ha N treatment. While the highest number of primary shoot, number of umbel and 1000 seed weight were obtained from 50 plant/m2 with 50 kg/ha N treatment and the highest seed yield was obtained from 50 plant/m2 with 0 kg/ha N fertilizer. In conclusion, plant density of 50 plant/m2 and application of lower amount (50 kg/ha) or without N fertilizer is sutiable for the maximum of growth and seed yield of cumin.