鲁西地区不同类型土壤对棉花产量及其构成因素与成铃时空分布的影响

Effect of Different Soil Textures on Cotton Yield,Composition Factors and Boll Spatial-temporal Distribution in Western Shandong

为了研究鲁西地区不同类型土壤对棉花产量及其构成因素与成铃时空分布的影响,以自育棉花新品种‘聊棉6号’为试验材料,研究了不同土质对棉花产量构成因素、主要农艺性状以及不同时期不同部位果枝成铃情况的影响。结果表明：壤土土质棉花产量最高,不同类型土壤间皮棉产量与籽棉产量差异显著,成铃数是导致产量差异显著的主要因素,籽棉产量与成铃数呈极显著正相关,皮棉产量与成铃数呈显著正相关;不同类型土壤棉花不同时期成铃数占总铃数的比例均以伏桃最高;棉花6果枝以上成铃数以壤土土质最高,1-10果枝的成铃数占总铃数的68.34%-87.47%,鲁西地区棉株成铃以中下部为主。

In order to study the effect of different soil textures on cotton yield,composition factors and bollspatial-temporal distribution in western Shandong,a new cotton variety‘Liaomian6＇was used as test material,the effects of different soil textures on cotton yield composition factors,main agronomic characters and bollformation of different periods and parts were analyzed. The results showed that cotton yield reached the highestin loam,lint yield and seed yield of different soil textures were significantly different,boll number was themain influence factor on yield,seed yield showed a significantly and positively correlation with boll number,and lint yield showed a positive correlation with boll number; the ratio of summer cotton boll number to totalboll number of different soil textures and periods was the highest; the boll number above six branches reachedthe highest in loam,boll number of 1-10 branches occupied 68.34% to 87.47% of the total boll number,thecotton boll was mainly in the middle and lower part in western Shandong.