島根大学農学部
ISSN:0370-940X
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島根大学農学部研究報告 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
長澤 純夫
近藤 雅彦
糟谷 真宏
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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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