EFFECTS OF PLANT DENSITY AND SOURCE LIMITATION ON YIELD, YIELD COMPONENTS AND DRY MATTER AND NITROGEN REMOBILIZATION IN CORN

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TAHMASBI SARVESTANI Z.A.A.; OMIDY H.; CHOUKAN R.

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Journal: Seed and Plant Year:2001 | Volume:17 | Issue:3 Page(s): 294-314

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Title

EFFECTS OF PLANT DENSITY AND SOURCE LIMITATION ON YIELD, YIELD COMPONENTS AND DRY MATTER AND NITROGEN REMOBILIZATION IN CORN

Author(s)

TAHMASBI SARVESTANI Z.A.A. | OMIDY H. | CHOUKAN R. | Issue Writer Certificate

Keywords

MAIZEQ2

DENSITYQ2

REMOBILIZATIONQ2

TOPPINGQ4

Abstract

To study the effects of plant DENSITY and source limitation on grain yield, yield components and dry matter and nitrogen REMOBILIZATION in corn (Zea mays L.), a field experiment was conducted at Seed and Plant Improvement Institute in 1998. A strip plot design based on randoMAIZEd complete blocks with 4 replications was used. In this study MAIZE hybrids (KSC704 and KSC711) were sown in vertical plots. DENSITY (65, 70, 75, 80, 85, 90 thousand plant ha-1) and TOPPING levels, T1 (control) and T2 (Removing tassel and all leaves above the ear) were assigned as factorial to horizontal plots. Results revealed that toppng at two weeks after anthesis did not have any adverse effect on grain yield. Therefore, a considerable quantity of forage could be harvested without any reduction in grain yield. The highest yield of green fodder (5.45 tha-1) was obtained from 90 thousand plant ha-1. Although TOPPING caused an increase in 1000 kernel weight by 7 percent compared to control, but there was no significant difference in their grain yield. REMOBILIZATION of dry matter and nitrogen from different parts of th shoot (leaves and stem) to the grain responded differently and among them stem contributed more. Maximum REMOBILIZATION of dry matter from stem (58%) was recorded in 80 thousand . plant ha-1 which had significantand positive correlation with grain yield.

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APA: Copy

TAHMASBI SARVESTANI, Z.A.A., OMIDY, H., & CHOUKAN, R.. (2001). EFFECTS OF PLANT DENSITY AND SOURCE LIMITATION ON YIELD, YIELD COMPONENTS AND DRY MATTER AND NITROGEN REMOBILIZATION IN CORN. SEED AND PLANT, 17(3), 294-314. SID. https://sid.ir/paper/20314/en

Vancouver: Copy

TAHMASBI SARVESTANI Z.A.A., OMIDY H., CHOUKAN R.. EFFECTS OF PLANT DENSITY AND SOURCE LIMITATION ON YIELD, YIELD COMPONENTS AND DRY MATTER AND NITROGEN REMOBILIZATION IN CORN. SEED AND PLANT[Internet]. 2001;17(3):294-314. Available from: https://sid.ir/paper/20314/en

IEEE: Copy

Z.A.A. TAHMASBI SARVESTANI, H. OMIDY, and R. CHOUKAN, “EFFECTS OF PLANT DENSITY AND SOURCE LIMITATION ON YIELD, YIELD COMPONENTS AND DRY MATTER AND NITROGEN REMOBILIZATION IN CORN,” SEED AND PLANT, vol. 17, no. 3, pp. 294–314, 2001, [Online]. Available: https://sid.ir/paper/20314/en

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