棉花叶片中棉酚和单宁含量与绿盲蝽抗性的关系

Relationship between Contents of Gossypol Acetic Acid(GAA) and Tannin in Cotton Leaf and Resistance to Apolygus lucorum Meyer-Dür

通过网室抗性鉴定和室内测定分析,系统研究了不同棉花品种(系)对绿盲蝽的抗性水平及棉花叶片棉酚和单宁含量与绿盲蝽抗性的关系。结果表明,不同棉花品种(系)叶片棉酚和单宁含量在不同时期存在差异;花铃期叶片棉酚和单宁含量与绿盲蝽抗性存在显著正相关,棉酚、单宁含量越高,棉花对绿盲蝽的抵抗作用越强。

The different resistance levels of different cotton varieties to Apolygus lucorum Meyer-Dur and the relationship between contents of GAA and tannin in cotton leaf and resistance to Apolygus lucorum Meyer-Dur were studied in the net room and laboratory. The results showed that the contents of GAA and tannin differed among different cotton varieties and among different growing periods. The contents of leaf GAA and tannin at the bolling stage indicated a strong positive correlation with the resistance to Apolygus lucorum.