A Study on the Indices Determining Drought resistance in Winter Wheat • 推荐CAJ下载

doi:10.3321/j.issn:1000-7091.1996.04.017

Abstract

Abstract: In this paper,some of yield indices,morphological and physiological characteristics in determining drought resistance of winter wheat were studied.The results showed that drought resistance index was superior to drought resistance coefficient,drought susceptibility index and reducing indices of yield components in determining drought resistance of winter wheat.Index of drought resistance,which represented both the drought resistance and productivity of a cultivar,could be used as a reliable index of drought resistance for stable generation of hybrids.Such indices as length of coleoptile and LAI at elongation stage,which were predicted simple,easy,fast and accurate,could be used to determine the drought resistance of a bulk of genetic resources and segregated individual plant of hybrid progenies.Correlation coefficient was found not significant between drought resistance and leaf proline concentration at grain filling stage,which was not considered to be a suitable index in determining drought resistance of winter wheat.

Key words: Winter wheat, Drought resistance, Indices of determination, Drought resistance index

CLC Number:

S512.101

Liu Guiru, Zhang Rongzhi, Lu Jianxiang, Gu Juntao, Yin Changcheng. A Study on the Indices Determining Drought resistance in Winter Wheat • 推荐CAJ下载[J]. ACTA AGRICULTURAE BOREALI-SINICA, 1996, 11(4): 84-88. doi: 10.3321/j.issn:1000-7091.1996.04.017.

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