Difference in the Agricultural Character Between the Interspecific Hybrid of Tropical Corn Germplasm and Temperate Corn Germplasm

doi:10.3321/j.issn:1000-7091.2005.05.004

Abstract

Abstract: Regarding tropical corn and temperate corn as parents,the difference of the agricultural character between the interspecific hybrid of tropical corn germplasm and temperate corn germplasm were systematically studied.The result shows that:In seedling stage,the accumulation amount of dry material of whole plant of interspecific hybrid:temperate×temperate corntropical×tropical corntropical×temperate corn;and its on the ground:tropical×tropical corntropical×temperate corntemperate×temperate corn;the underground part displays the opposite trend.The height of plant of interspecific hybrid on the initial stage of growing,temperate×temperate corntropical×temperate corntropical×tropical corn;and with growing,it will be on the contrary.For the quantity of the leaf and leaf growth rate,there is no obvious difference in different interspecific hybrid in seedling stage.In interspecific hybrid,the bigger tropical germplasm proportion is,the higher largest leaf height is,and the more the larger leaves are.The bigger tropical germplasm proportion is,the more their generations'male branches are.Because the extending of middle and lower internodes in the plant,the height of the plantthat brought bytropical germplasm is increased.

Key words: Corn, Tropical germplasm, Agricultural character, Difference, Filia-l generation

CLC Number:

S513.024

DONG Hai-he, LI Feng-hua, CAI Zhuo, YANG Zhao-shun, LOU Chen-jun, QIAN Fang, ZHANG Xu. Difference in the Agricultural Character Between the Interspecific Hybrid of Tropical Corn Germplasm and Temperate Corn Germplasm[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2005, 20(5): 17-20. doi: 10.3321/j.issn:1000-7091.2005.05.004.

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