Effect of plant density on radiation use efficiency, extinction coefficient and grain yield of two sunflower cultivars in Northern Khuzestan

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ZARGHAMI F.; SADEGHI M.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Journal: PLANT ECOPHYSIOLOGY (ARSANJAN BRANCH) Year:2017 | Volume:9 | Issue:30 Page(s): 108-117

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Title

Effect of plant density on radiation use efficiency, extinction coefficient and grain yield of two sunflower cultivars in Northern Khuzestan

Author(s)

ZARGHAMI F. | SADEGHI M. | Issue Writer Certificate

Keywords

Grain yieldQ2

plant densityQ3

radiation use efficiencyQ2

sunflowerQ2

Abstract

plant density is an important factor influencing light interception by plants. An experiment was carried out at Agricultural Research Farm of Islamic Azad university of Dezfolin during 2013-2014. The experiment design was factorial arranged in a randomized complete blocks design with three replications. Treatments were plant densities (4. 5, 5. 5, 6. 5 and 7. 5 plants/m2) and two sunflower cultivars (Shahroodi and Domsefid). The results showed that the effect of plant density was significant on leaf area index (LAI), radiation use efficiency (RUE), Grain yield, extinction coefficient (K) and light interception (LI). The highest LAI and RUE were 4. 24 and 1. 92 (Mj/m2/s-1) in Shahroodi cultivar, respectively. The highest K and LI in Domsefid cultivar were 0. 137 and 43. 4% respectively. In general, increase in plant density in both cultivars resulted in increasing the RUE. The highest Grain yield obtained in Domsefid cultivar and 6. 5 plants/m2 (5249. 9 kg. ha-1).

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APA: Copy

ZARGHAMI, F., & SADEGHI, M.. (2017). Effect of plant density on radiation use efficiency, extinction coefficient and grain yield of two sunflower cultivars in Northern Khuzestan. PLANT ECOPHYSIOLOGY (ARSANJAN BRANCH), 9(30 ), 108-117. SID. https://sid.ir/paper/366304/en

Vancouver: Copy

ZARGHAMI F., SADEGHI M.. Effect of plant density on radiation use efficiency, extinction coefficient and grain yield of two sunflower cultivars in Northern Khuzestan. PLANT ECOPHYSIOLOGY (ARSANJAN BRANCH)[Internet]. 2017;9(30 ):108-117. Available from: https://sid.ir/paper/366304/en

IEEE: Copy

F. ZARGHAMI, and M. SADEGHI, “Effect of plant density on radiation use efficiency, extinction coefficient and grain yield of two sunflower cultivars in Northern Khuzestan,” PLANT ECOPHYSIOLOGY (ARSANJAN BRANCH), vol. 9, no. 30 , pp. 108–117, 2017, [Online]. Available: https://sid.ir/paper/366304/en

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