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Genotypic variation in distribution of total and labelled zinc and availability of zinc (A and L values) to soya beans grown in Mollisol

Published online by Cambridge University Press:  27 March 2009

V. S. Rao ,
M. S. Gangwar  and
V. S. Rathore
V. S. Rao
Affiliation:
Govind Ballabh Pant University of Agriculture and Technology, Pantnagar {Uttar Pradesh), India
M. S. Gangwar
Affiliation:
Govind Ballabh Pant University of Agriculture and Technology, Pantnagar {Uttar Pradesh), India
V. S. Rathore
Affiliation:
Govind Ballabh Pant University of Agriculture and Technology, Pantnagar {Uttar Pradesh), India
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Summary

Three soya-bean (Glycine max L.) genotypes (Bragg, Type I and Hark) were grown in Mollisol supplemented with 0, 2·5, 5·0 mg Zn/kg in pot-culture experiments. The genotypes showed significant differences in their capacity to absorb Zn. Maximum Zn accumulation was found in the genotype Bragg and minimum in Hark. The pattern of Zn distribution in plant parts was also different in the three genotypes and was differently affected by Zn application. The uptake and percentage distribution of 66Zn followed more or less the same trend as that of total Zn. The genotypes differed significantly in R(recovery), A(availability of native Zn) and L(labile soil Zn) value indicating that these three genotypes differed in their capacity for recovering applied and native Zn. The genotype Bragg had maximum R, A and L values. These results correspond well with the reported tolerance of these genotypes to Zn deficiency (Bragg > Type I > Hark).

Type
Research Article
Information
The Journal of Agricultural Science , Volume 88 , Issue 2 , April 1977 , pp. 417 - 420
Copyright
Copyright © Cambridge University Press 1977

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