Bulletin of the Faculty of Agriculture, Shimane University

Faculty of Agriculture, Shimane University

ISSN:0370-940X

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Use this link to cite this item : https://ir.lib.shimane-u.ac.jp/1715

Bulletin of the Faculty of Agriculture, Shimane University 15

1981-12-15 発行

イネの生長初期における根の発達を阻害するPCPの濃度と感受性の品種間差異

Concentration of PCP Inhibiting the Development of Roots at the Early Growth Stage of Rice and the Difference of Susceptibilities in Varieties

Nagasawa, Sumio

Kondo, Masahiko

Kasuya, Masahiro

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Early rice seedlings were cultured by hydropoinc method in which PCP was added at logarithmic levels of concentration. Total dry weight of roots at each concentration was measured after a prescribed time of cultivation. The median inhibitory concentration of PCP for root development was estmated by Fiiney's probit analysis method for quantitative response data. Susceptibilities in some varieties to the growth inhibitory effect of PCP were comparedat a selected concentration and the significance of difference between varieties was determined by Duncan's multiple range test.

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