EFFECT OF PLANT DENSITY AND NITROGEN RATES ON YIELD AND YIELD COMPONENTS
OF CORN (ZEAMAYS L.)

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SADEGHI HOSSEIN; BAHRANI M.J.

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Journal: Iranian Journal of Crop Sciences Year:2001 | Volume:3 | Issue:2 Page(s): 1-11

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Information Journal Paper

Title

EFFECT OF PLANT DENSITY AND NITROGEN RATES ON YIELD AND YIELD COMPONENTS OF CORN (ZEAMAYS L.)

Author(s)

SADEGHI HOSSEIN | BAHRANI M.J. | Issue Writer Certificate

Keywords

PLANT DENSITYQ2

NITROGENQ3

YIELDQ2

Abstract

In order to investigate the effects of PLANT DENSITY and NITROGEN rates on YIELD and YIELD components of corn (Var. SC704) a field experiment was conducted as split-plot arranged in a randomized complete block design with four replications in 1999 at Koushkak Agricultural Research Center of Shiraz University. The treatments composed of NITROGEN at four rates: 0, 80, 160, and 240 kg/ha as main plots and PLANT DENSITY at four levels: 6, 7.4, 8 and 10.2 plants/m as subplots. Results showed that increasing N rates did not significantly affect ear weight. Lowest ear weight was observed with lowest N. Increasing N rates increased 1000-grain weight, however, there was no significant difference between 160 and 240 kgN/ha. Similary, N rates of 80, 160, and 240 kg/ha showed no significant difference for harvest index, grain YIELD, and number of kernel per ear. Positive effect of NITROGEN on number of kernel per ear increased grain YIELD. Harvest index was not affected by PLANT DENSITY. Increasing PLANT DENSITY decreased number of kernel per ear, 1000-grain weight and ear weight. Increasing PLANT DENSITY decreased grain YIELD per plant. Therefore, increasing grain YIELD was due to increasing number of plants per area which has compensated vield decrease per plant. The highest grain YIELD (12490 kg/ha) was obtained from the interaction between highest N (240 kg/ha) and lowest PLANT DENSITY (10.2 plant/m2).

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EFFECT OF PLANT DENSITY AND NITROGEN RATES ON YIELD AND YIELD COMPONENTS OF CORN (ZEAMAYS L.)

Cite

APA: Copy

SADEGHI, HOSSEIN, & BAHRANI, M.J.. (2001). EFFECT OF PLANT DENSITY AND NITROGEN RATES ON YIELD AND YIELD COMPONENTS OF CORN (ZEAMAYS L.). IRANIAN JOURNAL OF CROP SCIENCES, 3(2), 1-11. SID. https://sid.ir/paper/57131/en

Vancouver: Copy

SADEGHI HOSSEIN, BAHRANI M.J.. EFFECT OF PLANT DENSITY AND NITROGEN RATES ON YIELD AND YIELD COMPONENTS OF CORN (ZEAMAYS L.). IRANIAN JOURNAL OF CROP SCIENCES[Internet]. 2001;3(2):1-11. Available from: https://sid.ir/paper/57131/en

IEEE: Copy

HOSSEIN SADEGHI, and M.J. BAHRANI, “EFFECT OF PLANT DENSITY AND NITROGEN RATES ON YIELD AND YIELD COMPONENTS OF CORN (ZEAMAYS L.),” IRANIAN JOURNAL OF CROP SCIENCES, vol. 3, no. 2, pp. 1–11, 2001, [Online]. Available: https://sid.ir/paper/57131/en

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