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《Acta Agronomica Sinica》 1992-01
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Studies on Absorption,Translocation and Distribution of Boron in Cotton (Gossypium airsutum.L.)

Xie Qing Wei Wenxue Wang Yunhua (Department of Soil and Agro-Chemistry,Huazhong Agricultural University,Wuhan)  
Agriculture and pot experiments were conducted to study the absorption,translocation and distribution of boron in cotton.The results obtained were summa-rized as follows:The rate of boron absorption,and its translocation in roots was higher than thatin leaves,but foliar spray of boron could meet the requirement of leaves for it.Translocations of boron in cotton were different in different period of growth.Duringvegetative growth period,boron was translocated mainly to growing pointsand young leaves,while in reproductive growth stage,most of the boron wastranslocated to leaves on main stem and to relevant leaves on boll-bearing branchesand reproductive organs.Generally boron was accumulated in old leaves and couldnot be translocated easily,while in function leaves,boron could be re-distributedalong with the assimilation products.
【Fund】: 国家自然科学基金
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