EFFECTS OF SUNFLOWER PLANTING DATE AND DEFOLIATION ON THE RATE OF BIRD DAMAGE

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JABBARZADEH A.; REZADOOST S.; VALILOO R.

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Journal: JOURNAL OF RESEARCH IN CROP SCIENCES Year:2011 | Volume:3 | Issue:11 Page(s): 1-9

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Title

EFFECTS OF SUNFLOWER PLANTING DATE AND DEFOLIATION ON THE RATE OF BIRD DAMAGE

Author(s)

JABBARZADEH A. | REZADOOST S. | VALILOO R. | Issue Writer Certificate

Keywords

SUNFLOWERQ2

PLANTING DATEQ3

BIRDS' DAMAGEQ2

HARVEST INDEXQ2

SEED YIELDQ2

Abstract

The date of planting and defoliation of SUNFLOWER have some effects on the amount of the damage that is caused by birds. To determine these effects an experiment was done in 2008. in Tazeshahr area, of Salmas. Expriment carried out as factorial experiment arrenged in RCBD with four replications. The first factor of the experiment was the date of planting that was done five times in a year, on 24th April, 9th and 24th May and 8th, 24th June. The second factor was leaf cutting that was done in three forms. In the first one, there was not any leaf cutting. The second form was based on cutting of three terminal leaves after the end of pollen dispersion period and in the third one there was not leaf cutting and it included covering of leaf. The final results showed, the first factor had effects on attributes of diameter of flower, amount of seeds, the yield of seeds, HARVEST INDEX, biological yield, oil percentage, oil yield and productivity index. Also the leaf cutting had effects on the attributes of seeds yield, HARVEST INDEX, oil yield and percentage of BIRDS' DAMAGE. The date of third planting had the average of 532.3 gram seeds in one square meter. It was the highest yield of seeds. The date of fifth planting had the average of 304.9 gram seeds in one square meters. It was the lowest operation of seeds. The cutting of three terminal leaves could lessen sixty percent of BIRDS' DAMAGE; however cutting of the leaves had no effect on the yield of seeds.

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APA: Copy

JABBARZADEH, A., REZADOOST, S., & VALILOO, R.. (2011). EFFECTS OF SUNFLOWER PLANTING DATE AND DEFOLIATION ON THE RATE OF BIRD DAMAGE. JOURNAL OF RESEARCH IN CROP SCIENCES, 3(11), 1-9. SID. https://sid.ir/paper/167904/en

Vancouver: Copy

JABBARZADEH A., REZADOOST S., VALILOO R.. EFFECTS OF SUNFLOWER PLANTING DATE AND DEFOLIATION ON THE RATE OF BIRD DAMAGE. JOURNAL OF RESEARCH IN CROP SCIENCES[Internet]. 2011;3(11):1-9. Available from: https://sid.ir/paper/167904/en

IEEE: Copy

A. JABBARZADEH, S. REZADOOST, and R. VALILOO, “EFFECTS OF SUNFLOWER PLANTING DATE AND DEFOLIATION ON THE RATE OF BIRD DAMAGE,” JOURNAL OF RESEARCH IN CROP SCIENCES, vol. 3, no. 11, pp. 1–9, 2011, [Online]. Available: https://sid.ir/paper/167904/en

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