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Information Journal Paper

Title

THE EFFECT OF IRRIGATION REGIMES ON SEED YIELD AND YIELD COMPONENTS OF DETERMINATE AND INDETERMINATE SOYBEAN CULTIVARS

Pages

  124-134

Abstract

 In order to evaluate the effect of IRRIGATION REGIMES on seed YIELD and YIELD components of determinate and indeterminate SOYBEAN cultivars an experiment was conducted in Isfahan University of Technology Research farm. The experiment was arranged in a randomized complete block design as split-plot with three replications. IRRIGATION REGIMES (5 different combinations of irrigation after 60, 90 and 120 mm cumulative evaporation from a class A evaporation pan during vegetative and reproductive phases) were the main plots and the subplots were two SOYBEAN cultivars (Williams (indeterminate) and Hobbit (determinate). Hand-seeding was carried out on May 16 and 17. The analysis of variance showed that the effect of irrigation regime on grain YIELD was significant (a= 0.01). The maximum seed YIELD obtained from irrigation after 60 mm cumulative evaporation.Increasing irrigation intervals during vegetative phase from 60 to 90 mm didn't result in a significant decrease in grain YIELD whereas further increase in irrigation intervals (from 90 to 120 mm) during this phase reduced grain YIELD significantly. Also, a significant reduction in grain YIELD occurred when irrigation based on 90 or 120mm cumulative evaporation continued up to the beginning pod formation (R3). Forward step by step regression revealed that changing pod number per plant was the major cause of grain YIELD changes in different treatments, and other YIELD components (seed per pod and seed weight) were very stable in different treatments. Findings this experiment suggest that irrigation intervals can be increase in vegetative phase up to cited level in order to reduce water consumption for SOYBEAN production.

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    APA: Copy

    YAHYAEI, S.GH.R.. (2008). THE EFFECT OF IRRIGATION REGIMES ON SEED YIELD AND YIELD COMPONENTS OF DETERMINATE AND INDETERMINATE SOYBEAN CULTIVARS. JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES, 14(5), 124-134. SID. https://sid.ir/paper/8880/en

    Vancouver: Copy

    YAHYAEI S.GH.R.. THE EFFECT OF IRRIGATION REGIMES ON SEED YIELD AND YIELD COMPONENTS OF DETERMINATE AND INDETERMINATE SOYBEAN CULTIVARS. JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES[Internet]. 2008;14(5):124-134. Available from: https://sid.ir/paper/8880/en

    IEEE: Copy

    S.GH.R. YAHYAEI, “THE EFFECT OF IRRIGATION REGIMES ON SEED YIELD AND YIELD COMPONENTS OF DETERMINATE AND INDETERMINATE SOYBEAN CULTIVARS,” JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES, vol. 14, no. 5, pp. 124–134, 2008, [Online]. Available: https://sid.ir/paper/8880/en

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