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《Acta Agriculturae Boreali-Sinica》 2014-S1
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Identification Index of Drought Resistance in Peanut

WANG Jin;LI Yu-rong;ZHANG Jia-nan;CHENG Zeng-shu;CHEN Si-long;SONG Ya-hui;KONG Hai-yan;WANG Li-yuan;ZHANG Peng-juan;Institute of Cereal and Oil Crops,Hebei Academy of Agriculture and Forestry Sciences,Laboratory of Crop Genetics and Breeding of Hebei Province;  
The objective of this article was to screen the drought resistance identification indexes and build evaluation system of peanut.In this study,a RIL population consisting of 177 lines which were planted in well-watered and drought stress environments in 2 years was analyzed based on 22 agronomic traits and 2 physiological characters.To detect the drought-resistant identification indexes,the correlation between these traits and the drought coefficient were analysis.The results showed that the correlation between drought coefficient and stress index of number of branch,number of bearing branch,number of bearing node,number of pods per plant,100-seed weight,comprehensive appraisal D value of chlorophyll content and canopy temperature were showed significant level.So these 7 traits can be used to screen drought-resistant germplasm.Drought-resistant germplasm were identified using a minimum drought coefficient score of 1.1.Using this criterion,steady drought tolerant lines L19,L121,L146 in the population were screened out.
【Fund】: 河北省自然科学基金项目(C2013301044);; 国家自然科学基金项目(31301354;31201239);; 国家花生产业技术体系建设项目(CARS-14-油用品种选育);; 河北省省级预算项目(2011055002);; 河北省农林科学院科学技术研究与发展计划项目(A2012060101);; 河北省科技计划项目(14226313D)
【CateGory Index】: S565.2
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