Volume 9, Issue 3 (fall 2005)
2005, 9(3): 131-142 |
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A. Azari, M.R. Khajehpour. Effect of Planting Pattern on Development, Growth, Yield Components and Seed and Petal Yields of Safflower in Summer Planting, Local Variety of Isfahan, Koseh . Journal of Crop Production and Processing 2005; 9 (3) :131-142
URL: http://jcpp.iut.ac.ir/article-1-370-en.html
URL: http://jcpp.iut.ac.ir/article-1-370-en.html
Abstract: (9772 Views)
The appropriate planting pattern of safflower in summer planting might be different from the planting pattern suitable for spring planting, and this has not been determined under Isfahan environmental conditions. A field experiment was conducted in the summer of 2000 at the Agricultural Research Station, Isfahan University of Technology, using a randomized complete block design with a split plot layout and three replications. Main plots consisted of three row distances (30 cm flat and 45 and 60 cm on bed), and sub-plots included three planting densities (30, 40, and 50 plant m-2). The experiment was planted in June 13 using local safflower variety of Isfahan, named Koseh. Leaf area index, number of heads per branch, number of seeds per head, 1000-seed weight, seed yield per plant and harvest index were not significantly effected by row distance. Increase row distance significantly enhanced most developmental stages and increased number of branches per plant and per square meter, but significantly decreased number of heads per plant and per square meter and seed and petal yields. The highest seed and petal yields (3841 and 373 kg per ha, respectively) were obtained with 30 cm row distance. Plant density had no significant effect on number of branches per plant, number of seeds per head, 1000-seed weight and seed yield per plant and per unit area. Plant density significantly enhanced most developmental stages and increased leaf area index, number of branches and number of heads per square meter, but significantly decreased number of heads per branch and per plant, petal yield and harvest index. The highest seed yield without petal clipping (4341 kg per ha) was obtained with 30 cm row distance and 50 plants m-2 treatment. The results obtained in this experiment indicate that this planting pattern might be appropriate for summer planting of safflower under conditions similar to this experiment.
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