EFFECT OF PLANT POPULATION ON SOME AGRONOMICAL TRAITS OF SUNFLOWER UNDER WATER DEFICIT CONDITION

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NAZZARIGOLSHAN A.; MEHRPOOYAN M.; SAYFZADEH S.; MORADIAGHDAM A.; TAHERKHANI T.

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Journal: JOURNAL OF RESEARCH IN CROP SCIENCES Year:2011 | Volume:2 | Issue:7 Page(s): 49-63

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Title

EFFECT OF PLANT POPULATION ON SOME AGRONOMICAL TRAITS OF SUNFLOWER UNDER WATER DEFICIT CONDITION

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Keywords

DROUGHT STRESSQ2

HARVEST INDEXQ2

OILQ2

SEED YIELD AND SUNFLOWERQ3

Abstract

To evaluate the effects of different plant population on some agronomical traits of sunflower (Alestar hybrid) under reduced irrigation condition, an experiment was carried out as split plot factorial based on Randomized Complete Block Design with three replications in Agricultural Research Field of Islamic Azad University Takestan Branch in 2009 and Treatments were irrigation (normal irrigation, irrigation disruption while bearing 6-8 leaves, irrigation disruption while initial flowering, irrigation disruption while budding stage) as main plot and plant population (6.66, 8.33, 11.11 plant per square meter) as sub plots. In this experiment plant height, stem diameter, the head diameter, percentage of hollowness of seeds, biological yield, the number of seeds in the head, the 1000 seed weight, OIL percentage, seed and OIL yield were measured. The results showed that different levels of irrigation had significant effect on plant height, stem diameter, the head diameter, the number of seeds in the head, the 1000 seed weight and OIL percentage. The control irrigation level had the maximum amount in the overall measured qualities and the minimum amounts of the measured qualities were obtained from irrigation disruption at bearing 6-8 leaves. Different plant population significantly affected plant height, head diameter, the head diameter, the 1000 seed weight and OIL percentage. The plant height in maximum population (11.11 plants per square meter) and other measured characters in minimum population (6.66 plants per square meter) were in highest amount. Interactions between irrigation and plant population for huld seeds’ percentage, biological yield, seed and OIL yield were significant. The highest yield (5033.7 kilogram in hectare) was obtained from control irrigation and 11.11 plants in square meter and the lowest yield (528.2 Kg/he) belonged to irrigation disruption at 6- 8 leaves initial and 6.6 plants in square meter. The maximum amount of OIL yield (2331.9 Kg/he) was acquired by control irrigation treatment and 11.11 plants in square meter. But the lowest OIL yield (133.4 Kg/he) was obtained from the irrigation disruption at 6-8 leaves.

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APA: Copy

NAZZARIGOLSHAN, A., MEHRPOOYAN, M., SAYFZADEH, S., MORADIAGHDAM, A., & TAHERKHANI, T.. (2011). EFFECT OF PLANT POPULATION ON SOME AGRONOMICAL TRAITS OF SUNFLOWER UNDER WATER DEFICIT CONDITION. JOURNAL OF RESEARCH IN CROP SCIENCES, 2(7), 49-63. SID. https://sid.ir/paper/167941/en

Vancouver: Copy

NAZZARIGOLSHAN A., MEHRPOOYAN M., SAYFZADEH S., MORADIAGHDAM A., TAHERKHANI T.. EFFECT OF PLANT POPULATION ON SOME AGRONOMICAL TRAITS OF SUNFLOWER UNDER WATER DEFICIT CONDITION. JOURNAL OF RESEARCH IN CROP SCIENCES[Internet]. 2011;2(7):49-63. Available from: https://sid.ir/paper/167941/en

IEEE: Copy

A. NAZZARIGOLSHAN, M. MEHRPOOYAN, S. SAYFZADEH, A. MORADIAGHDAM, and T. TAHERKHANI, “EFFECT OF PLANT POPULATION ON SOME AGRONOMICAL TRAITS OF SUNFLOWER UNDER WATER DEFICIT CONDITION,” JOURNAL OF RESEARCH IN CROP SCIENCES, vol. 2, no. 7, pp. 49–63, 2011, [Online]. Available: https://sid.ir/paper/167941/en

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