| 徐新霞,雷建峰,高丽丽,郑慧,李淦,王立红,锁忠程,李君,张巨松.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[J].干旱地区农业研究,2017,35(2):51~56 |
| 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 |
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| DOI：10.7606/j.issn.1000-7601.2017.02.09 |
| 中文关键词: 机采棉 行距配置 生长发育 光合物质 |
| 英文关键词:machine-harvested cotton row spacing pattern growth photosynthetic production |
| 基金项目:机采棉高效生产关键技术研究与示范(2014BAD09B00) |
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| 中文摘要: |
| 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。 |
| 英文摘要: |
| 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. |
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