STUDY ON EFFECT OF PRE AND POST AN THESIS FOLIAR SPRAY OF UREA ON LEAF AREA DURATION, YIELD, YIELD COMPONENT AND PROTEIN COTENT OF TWO WHEAT CULTIVARS

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SABAHI H.; RAHIMIAN H.

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Journal: Year:2000 | Volume:6 | Issue:3 Page(s): 65-78

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Title

STUDY ON EFFECT OF PRE AND POST AN THESIS FOLIAR SPRAY OF UREA ON LEAF AREA DURATION, YIELD, YIELD COMPONENT AND PROTEIN COTENT OF TWO WHEAT CULTIVARS

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SABAHI H. | RAHIMIAN H. | Issue Writer Certificate

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Abstract

Nitrogen fertilization at early stages of plant development do not always result maximum yield and protein. The objectives of this study was to determine the effect of pre and post an thesis foliar spray of urea on car development, leaf area duration, grain protein percentage and yield of two winter wheat cultivars. Foliar N (20 kg/ha) as an aqueous solution of urea (50 g/lit) was applied at four stages of development in 1373. Maximum effect of supplementary N was achieved at the jointing and flag leaf emergence stage. At these developmental stags, supplementary N increased the number of florets per spiklet and grains per car. In spite of significant increasing at seed yield, hut harvest index do not vary. Foliar spray increase "Anthesis spike weight to stem weight ratio" a little. Nitrogen added at anthesis and milk stage mainly increased the kernel weight and grain protein percentage hut did not increase grain yield significantly. Although foliar fertilization around a thesis decrease rate of N-depletion ofleaf during grain filling, hut it did not increase leaf area duration. Its reasons can his positive effect of foliar spray on N percentages of high leaves on stem only at two last weeks of seed filling period. Total N uptak at a thesis and at maturity in low protein cultivar (Navid) was greater than high protein cultivar (Bezostaya).

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APA: Copy

SABAHI, H., & RAHIMIAN, H.. (2000). STUDY ON EFFECT OF PRE AND POST AN THESIS FOLIAR SPRAY OF UREA ON LEAF AREA DURATION, YIELD, YIELD COMPONENT AND PROTEIN COTENT OF TWO WHEAT CULTIVARS. JOURNAL OF AGRICULTURAL SCIENCES, 6(3), 65-78. SID. https://sid.ir/paper/527988/en

Vancouver: Copy

SABAHI H., RAHIMIAN H.. STUDY ON EFFECT OF PRE AND POST AN THESIS FOLIAR SPRAY OF UREA ON LEAF AREA DURATION, YIELD, YIELD COMPONENT AND PROTEIN COTENT OF TWO WHEAT CULTIVARS. JOURNAL OF AGRICULTURAL SCIENCES[Internet]. 2000;6(3):65-78. Available from: https://sid.ir/paper/527988/en

IEEE: Copy

H. SABAHI, and H. RAHIMIAN, “STUDY ON EFFECT OF PRE AND POST AN THESIS FOLIAR SPRAY OF UREA ON LEAF AREA DURATION, YIELD, YIELD COMPONENT AND PROTEIN COTENT OF TWO WHEAT CULTIVARS,” JOURNAL OF AGRICULTURAL SCIENCES, vol. 6, no. 3, pp. 65–78, 2000, [Online]. Available: https://sid.ir/paper/527988/en

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