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Journal: PAJOUHESH-VA-SAZANDEGI | Year:1387 | Volume:21 | Issue:3 (80 IN AGRONOMY AND HORTICULTURE) | Start Page:33 | End Page:39

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Title

EVALUATION OF HARVESTING STAGE AND DRYING TEMPERATURE ON HECTOLITER WEIGHT OF MAIZE GRAIN

Writers

CHOUKAN R.

Pages

 Start Page 33 | End Page 39

Abstract

 In order to determine the effect of limited growing season on HECTOLITER weight of MAIZE in late planting dates, which causes the harvesting of immature kernels with high moisture content before physiological maturity, effects of three planting dates, four HARVESTING STAGEs and four DRYING TEMPERATUREs, were evaluated using randomized compelet block design in split plot arrangement in four replications, at the experimental field of Seed and Plant Improvement Institute, in 2006. Variations on 1000 KERNELS WEIGHT and HECTOLITER weight showed that HARVESTING STAGE has important effect in variation of both traits. Highest 1000 kernel weight and HECTOLITER weight (295 and 782.5 g, respectively) obtained from harvesting two weeks after physiological stage. The lowest 1000 KERNELS WEIGHT and HECTOLITER weight (193.2 and 747.5 g, respectively) also harvested at daugh stage of grains. HARVESTING STAGE and DRYING TEMPERATURE showed significant interaction. All treatments showed their highest 1000 KERNELS WEIGHT and HECTOLITER weight at two weeks after maturity and drying at 60oC. Other treatments changed depending on HARVESTING STAGE. Moisture decrease under field conditions allows using 80-100oC in drying without considerable changes in 1000 KERNELS WEIGHT or HECTOLITER weight.

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