THE EFFECTS OF SOWING DATE AND PLANT POPULATION ON YIELD COMPONENTS AND MORPHOLOGICAL CHARACTERISTICS OF CORN (SC604) IN SHIRVAN REGION

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RAFIEI M.; ASGHARIPOUR M.

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Journal: DYNAMIC AGRICULTURE Year:2009 | Volume:6 | Issue:1 Page(s): 23-34

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Title

THE EFFECTS OF SOWING DATE AND PLANT POPULATION ON YIELD COMPONENTS AND MORPHOLOGICAL CHARACTERISTICS OF CORN (SC604) IN SHIRVAN REGION

Author(s)

RAFIEI M. | ASGHARIPOUR M. | Issue Writer Certificate

Keywords

CORN (ZEA MAYS L.)Q3

SOWING DATEQ3

PLANT POPULATIONQ3

YIELD COMPONENTSQ3

Abstract

A field experiment was conducted in Shirvan, Khorasan-e-Shomali province, Iran, during 2005 growing season to study the effect of SOWING DATE and plant density on growth, phenology, yield and YIELD COMPONENTS of corn (Zea mays L.). Treatments were arranged in a randomized split-plot design with three replications. Main plot consisted of three SOWING DATEs (4 and 19 May, and 5 June), and sub- plot consisted of three plant densities (75000, 95000 and 115000 plants/ha). The results showed that the duration of phenological stages decreased with delay in planting from 4 May to 5 June. However, cumulative degree days were largely similar at different planting dates. The effect of SOWING DATE on morphological characteristics including plant height, ear length, stem base diameter, number of leaves, ear diameter, number of grain rows on the ear, grain length, wood ear length, ear axle weight and distance of ear from the ground was significant at 1% level. These properties had a decreasing trend with the delay in planting. Effects of different densities on morphological characteristics were significant. Different planting date and planting density had significant effect at 1% level on YIELD COMPONENTS, including number of ear per plant, number of seeds per ear row, ear weight and one hundred seed weight. The effect of planting date and also plant density on grain yield, biological yield and harvest index was significant at 1% level. The highest grain yield and biological yield were obtained at 19 may and 115000 plants per hectare. Light interception was effected significantly by SOWING DATE and decreased with delay in planting.

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APA: Copy

RAFIEI, M., & ASGHARIPOUR, M.. (2009). THE EFFECTS OF SOWING DATE AND PLANT POPULATION ON YIELD COMPONENTS AND MORPHOLOGICAL CHARACTERISTICS OF CORN (SC604) IN SHIRVAN REGION. DYNAMIC AGRICULTURE, 6(1), 23-34. SID. https://sid.ir/paper/183693/en

Vancouver: Copy

RAFIEI M., ASGHARIPOUR M.. THE EFFECTS OF SOWING DATE AND PLANT POPULATION ON YIELD COMPONENTS AND MORPHOLOGICAL CHARACTERISTICS OF CORN (SC604) IN SHIRVAN REGION. DYNAMIC AGRICULTURE[Internet]. 2009;6(1):23-34. Available from: https://sid.ir/paper/183693/en

IEEE: Copy

M. RAFIEI, and M. ASGHARIPOUR, “THE EFFECTS OF SOWING DATE AND PLANT POPULATION ON YIELD COMPONENTS AND MORPHOLOGICAL CHARACTERISTICS OF CORN (SC604) IN SHIRVAN REGION,” DYNAMIC AGRICULTURE, vol. 6, no. 1, pp. 23–34, 2009, [Online]. Available: https://sid.ir/paper/183693/en

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