Journal of Food, Agriculture and Environment

Effects of planting populations on yield and yield components of safflower in different weed competition treatments

Author(s):

Mohamad Reza Naghavi

Recieved Date: 2011-08-14, Accepted Date: 2012-01-08

Abstract:

One of most critical aspects of optimizing crop growth and development is plant population. The improvement of crop plants is usually achieved through selecting appropriate cultivars. In order to determine the effects of plant densities and weed competition of safflower cultivars, an experiment was conducted at Cultural Experiment and Research Center, Faculty of Agriculture, Islamic Azad University, Khorasghan Branch, Isfahan, in 2009-2010. The experimental design was a factorial-split layout in randomized complete block design with four replications. The main plots were cultivar and plant density. Cultivars included Goldasht, Mahali Esfahan, Zende Rood and Mexican. Plant densities were 30, 50 and 75 plants per m². Sub-plots were presence of weed and without weed. In present of weed, all experimental characteristics were significantly decreased. Seed and oil yield loss due to weed competition was shown in this study. The results showed that the highest seed and oil yield was observed in 70 plants per m² and Mahali cultivar. In treatment with weed, seed and oil yield was decreased significantly. So, cultivation of Mahali cultivar with 70 plants per m² was recommended to Isfahan’s farmers.

Keywords:

Plant population, safflower, cultivar, weed, yield, yield components

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Journal: Journal of Food, Agriculture and Environment
Year: 2012
Volume: 10
Issue: 1
Category: Agriculture
Pages: 481-483

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