| 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 |
| Key Words: machine-harvested cotton row spacing pattern growth photosynthetic production |
| Author Name | Affiliation | | XU Xin-xia | Research Center of Cotton Engineering, Ministry of Education/College of Agronomy, Xinjiang Agricultural University, Urumqi, Xinjiang 830052, China； Center of Bazhou Agricultural Technology Extension, Korla, Xinjiang 841000, China | | LEI Jian-feng | Research Center of Cotton Engineering, Ministry of Education/College of Agronomy, Xinjiang Agricultural University, Urumqi, Xinjiang 830052, China | | GAO Li-li | Research Center of Cotton Engineering, Ministry of Education/College of Agronomy, Xinjiang Agricultural University, Urumqi, Xinjiang 830052, China | | ZHENG Hui | Research Center of Cotton Engineering, Ministry of Education/College of Agronomy, Xinjiang Agricultural University, Urumqi, Xinjiang 830052, China | | LI Gan | Research Center of Cotton Engineering, Ministry of Education/College of Agronomy, Xinjiang Agricultural University, Urumqi, Xinjiang 830052, China | | WANG Li-hong | Research Center of Cotton Engineering, Ministry of Education/College of Agronomy, Xinjiang Agricultural University, Urumqi, Xinjiang 830052, China | | SUO Zhong-cheng | Research Center of Cotton Engineering, Ministry of Education/College of Agronomy, Xinjiang Agricultural University, Urumqi, Xinjiang 830052, China | | LI Jun | Research Center of Cotton Engineering, Ministry of Education/College of Agronomy, Xinjiang Agricultural University, Urumqi, Xinjiang 830052, China | | ZHANG Ju-song | Research Center of Cotton Engineering, Ministry of Education/College of Agronomy, Xinjiang Agricultural University, Urumqi, Xinjiang 830052, China |
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| Abstract: |
| 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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