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作 者 ：鄂玉江; 戴俊英; 顾慰连

期 刊 ：作物学报 1988年 14卷 02期 页码：149-154

关键词：玉米根系；吸收能力；

Keywords:Maize root system, Absorption ability, Biomass yield, The relationship between root and above-ground,

摘 要 ：玉米初生根和1～4层次生根发生于苗期,5～6层次生根发生于拔节至孕穗期,第7层以上气生根发生于孕穗至抽雄期。在玉米生长的每一时期中,均以当时较新发生的,较上层的根发挥较大的吸收作用。根系总的吸收面积和叶面积指数都随着整个植株生长而增长,而前者达到最大值的时间早于后者。玉米地上部干物质的积累在拔节后至乳熟前急剧

Abstract:Primary roots and the first to fourth layers of secondary roots ofmaize(Zea mays)emerged during seedling stage,the fifth and the sixthlayers appeared from enlongation stage till boating stage,and the seventh layer and those above(i.e,aerial roots)emerged from boating stagetill tasseling stage.In eac

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