Photosynthates competition within the boll-leaf system is alleviated with the improvement of photosynthetic performance during the succession of Xinjiang cotton cultivars

doi:10.1016/j.indcrop.2020.113121

	Photosynthates competition within the boll-leaf system is alleviated with the improvement of photosynthetic performance during the succession of Xinjiang cotton cultivars
	Wang, Yuxuan ; Chen, Minzhi ; Liang, Fubin ; Tian, Jingshan ; Zhang, Yali ; Jiang, Chuangdao 1; Zhang, Wangfeng
	2021
发表期刊	INDUSTRIAL CROPS AND PRODUCTS
ISSN	0926-6690
卷号	160
摘要	The yield of cotton (Gossypium hirsutum L.) has increased steadily with the release of different cultivars over the years in Xinjiang, China. However, the reasons for this increased yield have been controversial. As the sympodial leaf and boll within the boll-leaf system of cotton develop together, their competition for photosynthates is intense during their growth, which may be an important factor influencing boll weight. Consequently, we speculated that shortening period during which the sympodial leaf and boll develop together, which would alleviate photosynthates competition, might contribute to boll growth during the succession of cotton cultivars. To test this hypothesis, changes in yield characteristics and photosynthetic performance were studied by examining the main cotton cultivars from four breeding eras (1980s, 1990s, 2000s, and 2010s) in the Xinjiang early-maturing cotton region. The results showed that the single boll weight and the number of bolls increased gradually, and the yield increased steadily with cultivar succession. In the boll-leaf system of cotton, the rapid growth period of the sympodial leaves moved forward, thus reducing the time during which the sympodial leaves and bolls developed simultaneously; at the same time, the rapid growth duration of boll was extended during cultivar succession. In addition, the succession of cotton cultivars was accompanied by increased leaf area, increased leaf photosynthetic rate (Pn) after flowering, and an extension of photosynthetic functional duration within the boll-leaf system. Compared with the sympodial leaves, the photosynthetic performance of the mainstem leaves was improved more obviously in the same boll-leaf system. Therefore, during cotton cultivar succession in Xinjiang, the photosynthates competition between sympodial leaf growth and boll development was significantly alleviated within a boll-leaf system with the improvement of photosynthetic performance, which may further extend the rapid growth duration of boll, thus enhancing single boll weight and yield of cotton.
关键词	Yield Cultivar succession Boll-leaf system Source-sink relationship Photosynthates
学科领域	Agricultural Engineering ; Agronomy
DOI	10.1016/j.indcrop.2020.113121
收录类别	SCI
语种	英语
WOS关键词	GOSSYPIUM-HIRSUTUM ; CARBON PRODUCTION ; LEAVES ; YIELD ; ACCUMULATION ; TECHNOLOGY ; CAPACITY ; GROWTH
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000613165500007
出版者	ELSEVIER
文献子类	Article
出版地	AMSTERDAM
EISSN	1872-633X
资助机构	Research Fund for the National Natural Science Foundation of China [U1803234]
作者邮箱	jcdao@ibcas.ac.cn ; zhwf_agr@shzu.edu.cn
引用统计	被引频次：14[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/26809
专题	中科院北方资源植物重点实验室
作者单位	1.Shihezi Univ, Coll Agron, Key Lab Oasis Ecoagr Xinjiang Prod & Construct Co, Shihezi 832003, Peoples R China 2.Chinese Acad Sci, Inst Bot, Key Lab Plant Resources, Beijing 100093, Peoples R China
推荐引用方式 GB/T 7714	Wang, Yuxuan,Chen, Minzhi,Liang, Fubin,et al. Photosynthates competition within the boll-leaf system is alleviated with the improvement of photosynthetic performance during the succession of Xinjiang cotton cultivars[J]. INDUSTRIAL CROPS AND PRODUCTS,2021,160.
APA	Wang, Yuxuan.,Chen, Minzhi.,Liang, Fubin.,Tian, Jingshan.,Zhang, Yali.,...&Zhang, Wangfeng.(2021).Photosynthates competition within the boll-leaf system is alleviated with the improvement of photosynthetic performance during the succession of Xinjiang cotton cultivars.INDUSTRIAL CROPS AND PRODUCTS,160.
MLA	Wang, Yuxuan,et al."Photosynthates competition within the boll-leaf system is alleviated with the improvement of photosynthetic performance during the succession of Xinjiang cotton cultivars".INDUSTRIAL CROPS AND PRODUCTS 160(2021).

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