| Dry matter and yield component of cotton cultivars differing in maturity in the drought region |
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| DOI：10.7606/j.issn.1000-7601.2017.06.12 |
| Key Words: cotton cultivar maturity dry matter yield South Xinjiang |
| Author Name | Affiliation | | ZHANG Jin-long | College of Plant Science, Tarim University, Alaer, Xinjiang 843300, China | | DONG He-lin | Institute of Cotton Research of Chinese Academy of Agricultural Sciences／The State Key Laboratory of Cotton Biology, Anyang, Henan 455000, China | | CHEN Guo-dong | College of Plant Science, Tarim University, Alaer, Xinjiang 843300, China | | HU Shou-lin | College of Plant Science, Tarim University, Alaer, Xinjiang 843300, China | | WANG Xue | College of Plant Science, Tarim University, Alaer, Xinjiang 843300, China | | ZHAO Pan-pan | Center of Agricultural Technology Extension of Akesu, Akesu, Xinjiang 843000, China | | SUN Yong | Xinjiang Production and Construction Crops, Six Regiment Division, Alar, Xinjiang 843300, China | | WAN Su-mei | College of Plant Science, Tarim University, Alaer, Xinjiang 843300, China |
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| Abstract: |
| In 2015, we selected early maturing cultivars Yuzao 9110, middle early maturity cotton cultivars in Zhongzhimian 2, medium maturity cultivars Zhongmiansuo 12, three conventional cotton varieties (lines) in the Tarim Basin of south Xinjiang cotton planting area to survey the dynamics of dry matter accumulation and yield formation. Results showed the order of dry matter accumulation per plant: the middle early (173.91 g), medium (167.84 g), early maturity (158.45 g). Dry matter accumulation in vegetative organ per plant of cotton cultivars was in the order of the early(84.51 g)＞middle early(76.61 g)＞medium maturity (73.70 g), while that in reproductive organ was the middle early (97.30 g)＞medium(94.15 g)＞early maturity(73.94 g), RAR was the medium (1.28) >middle early (1.27) >early maturity (0.87) and lint yield was the middle early (1 735.8 kg·hm-2)＞medium(1 679.2 kg·hm-2)＞early maturity (1 199.8 kg·hm-2). Comprehensive analysis that middle early maturity cultivar Zhongzhimian 2 was fast in per plant stem quality and dry matter average accumulation. And the early maturity cultivar（Yuzao 9110）were not suit for the Tarim Basin. Collectively, it could be concluded that the middle early maturity cultivar Zhongzhimian 2 is the suitable cotton cultivars for planting in Tarim Basin of South Xinjiang. |
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