| Effects of drip irrigation quota on plant shape, yield and fiber quality of cotton |
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| DOI：10.7606/j.issn.1000-7601.2019.05.03 |
| Key Words: cotton drip irrigation quota plant type yield fiber quality |
| Author Name | Affiliation | | LI Nan-nan | Key Laboratory of Oasis Eco-agriculture of Xinjiang Production and Construction Corps, College of Agronomy, Shihezi University, Shihezi, Xinjiang 832003,China | | MA Hui | Key Laboratory of Oasis Eco-agriculture of Xinjiang Production and Construction Corps, College of Agronomy, Shihezi University, Shihezi, Xinjiang 832003,China | | WANG Xiu-yuan | Key Laboratory of Oasis Eco-agriculture of Xinjiang Production and Construction Corps, College of Agronomy, Shihezi University, Shihezi, Xinjiang 832003,China | | LI Jun-hong | Key Laboratory of Oasis Eco-agriculture of Xinjiang Production and Construction Corps, College of Agronomy, Shihezi University, Shihezi, Xinjiang 832003,China | | HAN Huan-yong | Cotton Institute of Xinjiang Academy of Agricultural Sciences, Shihezi, Xinjiang 832000, China | | LUO Hong-hai | Key Laboratory of Oasis Eco-agriculture of Xinjiang Production and Construction Corps, College of Agronomy, Shihezi University, Shihezi, Xinjiang 832003,China |
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| Abstract: |
| With drip irrigation under film, 5 drip irrigation quota treatments (W1:600 m3·hm-2, W2:540 m3·hm-2; W3:480 m3·hm-2, W4:420 m3·hm-2, W5:360 m3·hm-2) were set up with the test material of XinluZao No. 45. The response of cotton agronomic traits, boll mode, yield and fiber quality to drip irrigation quota was studied. The results showed that with the decrease of drip irrigation quota, the plant height of cotton with all treatments was in the order of W2> W1> W3> W4> W5. The number of fruit branches and the total number of buds, flowers and bolls (August 10) were the largest under W1 treatment, which was 9 and 13.8, respectively, and the smallest occurred in W5 treatment, which was 8.75 and 10.2, respectively. There was no significant difference in the upper, middle and lower parts of W1 treatment and W2 treatment. Cottonseed and lint yields were the highest in W1 treatment, reaching 6 431 kg·hm-2 and 2 520 kg·hm-2, but there was no significant difference between W2 and W1 treatment. There was no significant difference in cotton fiber length, uniformity and specific strength between W1 and W2 treatments. The length and uniformity of cotton fiber in W3, W4 and W5 treatments were 0.4 mm, 1.1 mm, 1.6 mm, and 0.5%, 0.7% and 0.9%, respectively, lower than that in W1 treatment. Therefore, the control of drip irrigation quota at 540 m3·hm-2can improve water use efficiency without significantly reducing the cotton yield and fiber quality. |
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