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1 996～ 1 998年 ,分别在自然病圃、人工病圃、网室和温室对 1 9份陆地棉品系的抗病虫性和经济性状进行了全面鉴定。结果表明 ,这些陆地棉品系对不同病虫害的抗性相互之间存在高度正相关。其抗性、产量和品质主要指标之间也存在密切的正向或负向相关关系。在育种中如能协调好这些重要性状的相互关系 ,就能培育出高产、优质和兼抗病虫的棉花新品种
From 1996 to 1998, the comprehensive evaluation of the pest-resistance and economic traits of 19 upland cotton lines in natural nursery, artificial nursery, net room and greenhouse respectively. The results showed that there was a highly positive correlation between the resistance of these upland cotton lines to different pests and diseases. The resistance, yield and quality of the main indicators also exist between the close positive or negative correlation. If we can coordinate the relationship between these important traits in breeding, we can breed new varieties of cotton with high yield, good quality and pest resistance