THE EFFECTS OF LAMBSQUARTERS (CHENOPODIUM ALBUM) DENSITY AND ITS RELATIVE TIME OF EMERGENCE ON YIELD AND YIELD COMPONENTS OF GRAIN CORN (ZEA MAYS)

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BAGHESTANI MEYBODI M.A.; ZAND ESKANDAR; AGHA BEYGHI MAHDI

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Journal Paper

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Journal: Applied Entomology and Phytopathology Year:2006 | Volume:74 | Issue:1 (81) Page(s): 5-25

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Title

THE EFFECTS OF LAMBSQUARTERS (CHENOPODIUM ALBUM) DENSITY AND ITS RELATIVE TIME OF EMERGENCE ON YIELD AND YIELD COMPONENTS OF GRAIN CORN (ZEA MAYS)

Author(s)

BAGHESTANI MEYBODI M.A. | ZAND ESKANDAR | AGHA BEYGHI MAHDI | Issue Writer Certificate

Keywords

CORNQ2

LAMBSQUARTERSQ3

COMPETITIONQ3

YIELDQ2

YIELD COMPONENTSQ3

Abstract

To investigate the effects of LAMBSQUARTERS density and its relative time of emergence on YIELD and YIELD components of grain CORN a two year experiment was conducted in 2001 and 2002 growing seasons in the research field of Weed Research Department, Plant Pests and Diseases Research Institute, Karaj. Both experiments were conducted using factorial arrangement of treatments in a randomized complete block design with 3 replications. The treatments were the relative time of LAMBSQUARTERS emergence (1st year: simultaneously, at 2-3 and 4-5 leaves stages of CORN; 2nd year: simultaneously, at 2-3 and 5-6 leaves stages of CORN) and LAMBSQUARTERS density (first year: 2, 5, 10 and 15 plant.m-2; second year: 6.6, 13.3 and 20 plant.m-2). A pure plot of CORN was also cultivated to evaluate grain YIELD of CORN in weed free conditions. The results indicated that both treatments had significant effects on grain and biological YIELDs, harvest index, grain number/ear row and row number/ear of CORN. Thousand-seed weight was not affected by LAMBSQUARTERS density. The results also showed that the negative effect of interference period on CORN was more than that of density. In conclusion, a delay in LAMBSQUARTERS emergence and a good management against it at the beginning of the growth season can increase the competitive ability of CORN against LAMBSQUARTERS.

Cites

INTERFERENCES OF COMMON LAMBSQUARTERS, CHENOPODIUM ALBUM L. IN TWO PLANTING PATTERNS OF CORN

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APA: Copy

BAGHESTANI MEYBODI, M.A., ZAND, ESKANDAR, & AGHA BEYGHI, MAHDI. (2006). THE EFFECTS OF LAMBSQUARTERS (CHENOPODIUM ALBUM) DENSITY AND ITS RELATIVE TIME OF EMERGENCE ON YIELD AND YIELD COMPONENTS OF GRAIN CORN (ZEA MAYS). APPLIED ENTOMOLOGY AND PHYTOPATHOLOGY, 74(1 (81)), 5-25. SID. https://sid.ir/paper/13143/en

Vancouver: Copy

BAGHESTANI MEYBODI M.A., ZAND ESKANDAR, AGHA BEYGHI MAHDI. THE EFFECTS OF LAMBSQUARTERS (CHENOPODIUM ALBUM) DENSITY AND ITS RELATIVE TIME OF EMERGENCE ON YIELD AND YIELD COMPONENTS OF GRAIN CORN (ZEA MAYS). APPLIED ENTOMOLOGY AND PHYTOPATHOLOGY[Internet]. 2006;74(1 (81)):5-25. Available from: https://sid.ir/paper/13143/en

IEEE: Copy

M.A. BAGHESTANI MEYBODI, ESKANDAR ZAND, and MAHDI AGHA BEYGHI, “THE EFFECTS OF LAMBSQUARTERS (CHENOPODIUM ALBUM) DENSITY AND ITS RELATIVE TIME OF EMERGENCE ON YIELD AND YIELD COMPONENTS OF GRAIN CORN (ZEA MAYS),” APPLIED ENTOMOLOGY AND PHYTOPATHOLOGY, vol. 74, no. 1 (81), pp. 5–25, 2006, [Online]. Available: https://sid.ir/paper/13143/en

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