Genotypic Variation in Cotton Genotypes for Low Phosphorus Tolerance and Efficiency Under Different Growth Conditions

文献类型： 外文期刊

第一作者： Iqbal, Asif

作者： Iqbal, Asif;Qiang, Dong;Xiangru, Wang;Huiping, Gui;Hengheng, Zhang;Xiling, Zhang;Meizhen, Song;Xiangru, Wang;Xiling, Zhang;Meizhen, Song

作者机构： Zhengzhou Univ, Chinese Acad Agr Sci, Sch Agr Sci, State Key Lab Cotton Biol,Inst Cotton Res,Zhengzho, Anyang 455000, Henan, Peoples R China;Chinese Acad Agr Sci, Western Agr Res Ctr, Changji 831100, Xinjiang, Peoples R China

关键词： Cotton; Phosphorus; Classification of genotypes; Cotton breeding

期刊名称：GESUNDE PFLANZEN （ 2022影响因子：3.1； 五年影响因子：2.8 ）

ISSN： 0367-4223

年卷期： 2023 年

页码：

收录情况： SCI

摘要： Low phosphorus (P) availability is a major problem for cotton production. Identification of low P tolerant and efficient genotypes would best address these problems. In this regard, thirty cotton genotypes were categorized for dry matter production and P use efficiency (PUE) under low and normal P conditions. The results showed that cotton genotypes displayed considerable variations in root morphology, dry matter production, photosynthesis, PUE, and antioxidant system in response to low and normal P conditions. Genotypes Jimian169, Zhongzhimian2, and Lumianyan16 produced more dry matter have high PUE and were considered strong low P tolerant and efficient, whereas genotypes DES926, TM-1, and CCRI10 have low dry matter and PUE and were proved to be weak low P tolerant and inefficient. Based on various classification methods, genotypes Jimian169 and DES926 were considered strong and weak low P tolerant cotton genotypes, respectively. For most of the traits, the heritability was high, suggesting that selection under low P is more reliable than under the normal P condition. The use of the identified cotton genotypes and traits could improve cotton breeding activities and help to improve sustainable cotton production.

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