种植密度对邯棉802产量及纤维品质的影响

摘要

Taking cotton variety Hanmian 802 as test material, in the 10 m of president, 0.6 m of row spacing, with 37 500, 45 000, 52 500, 60 000 and 67 500 strains/hm2 of planting density (planting density was adjusted by the row spacing ) , the effects of different planting densities on yield and fiber quality of Hanmian 802 were studied using randomized block experimental design.The results showed that the optimum planting density of Hanmian 802 was 52 500 strains /hm2 , in the planting density of which the cotton could achieve the best combination of yield and quality, the yield was higher (4 359.75 kg/hm2), fiber quality was the best, fiber length was 29.81 mm, specific strength was 31.4 cN/tex, micronaire value was 4.9, uniformity degree was 49.5%.%　　以棉花品种邯棉802为试验材料，采取随机区组试验设计，在行长10 m、行距0.6 m条件下，设种植密度37500、45000、52500、60000和67500株/hm2计5个处理（种植密度由株距调节），研究不同种植密度对邯棉802产量及纤维品质的影响，探索实现棉花产量与纤维品质最佳结合的种植密度。结果表明：邯棉802在种植密度为52500株/hm2时，能够实现产量与品质的最佳结合。该密度下产量较高，为4359.75 kg/hm2；纤维品质最好，其中纤维长度29.81 mm、比强度31.4 cN/tex、马克隆值4.9、整齐度49.5％。