不同机采棉行距配置对棉花生长发育及光合物质生产的影响  

Effects of different row spacing patterns on growth and photosynthetic production of machine-harvested cotton

作　　者：徐新霞[1,2] 雷建峰[1] 高丽丽[1] 郑慧[1] 李淦[1] 王立红[1] 锁忠程 李君[1] 张巨松[1] 

机构地区：[1]新疆农业大学农学院/教育部棉花工程研究中心,新疆乌鲁木齐830052 [2]新疆巴州农业技术推广中心,新疆库尔勒841000

出　　处：《干旱地区农业研究》2017年第2期51-56,共6页Agricultural Research in the Arid Areas

基　　金：基金项目 机采棉高效生产关键技术研究与示范(2014BAD09B00)

摘　　要：以新陆早32号为供试材料,在新疆自然生态环境下研究不同机采棉行距配置(66+10 cm、72+4 cm)对棉花生长发育及其光合物质生产的影响。结果表明:72+4模式利于棉花前期生长,因其地膜覆盖率高,采光面积大,地温高;66+10模式利于棉花中后期的生长,因其通风透光性强;其中66+10模式与72+4模式相比,棉花生育时期提前3 d,株高高于72+4模式15.66%,叶片多于72+4模式13.53%,两者差异达到显著水平,以此为基础,66+10模式下棉花营养生长和生殖生长得到有效合理的协调,并促进了生殖器官干物质的积累,且因中后期的通风透光性强,提高了外围铃比例,为增产做贡献。Selecting Xinluzao 32 as experimental material,the effects of different row spacing patterns(66 +10 cm,72 + 4 cm) on growth and photosynthetic production of machine-harvested cotton were studied under the natural ecological environment in Xinjiang. The results showed that the 72 + 4 pattern was advantageous to cotton growth in early period,because of the high coverage of plastic film,large lighting area and high soil temperature,whereas the 66 + 10 pattern was in favor of cotton growth in late period,because of its advantages in ventilation and transmission of light. Compared with 72 + 4 pattern,the 66 + 10 pattern brought forward growth period by 3 days,raised plant height by 15. 66%,and increased leaves by 13. 53% with a significant level. Therefore,the 66 + 10 pattern could coordinate vegetative and reproductive growth of cotton effectively,promote dry matter accumulation in reproductive organs,increase proportion of peripheral bolls,and thus make a contribution to high yield.

关 键 词：机采棉 行距配置 生长发育 光合物质 

分 类 号：S562[农业科学—作物学]