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Cluster planting impact on cotton growth, yield and biomass accumulation in an arid region oasis
Received:April 25, 2017  Revised:March 30, 2018  Click here to download the full text
Citation of this paper:TingTing Xie,PeiXi Su,WenZhi Zhao,LiShan Shan,2018.Cluster planting impact on cotton growth, yield and biomass accumulation in an arid region oasis.Sciences in Cold and Arid Regions,10(3):271~278.
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Author NameAffiliationE-mail
TingTing Xie College of Forestry, Gansu Agricultural University, Lanzhou, Gansu 730070, China
Linze Inland River Basin Research Station/Key Laboratory of Ecohydrology of Inland River Basin, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China 
xieting1026@126.com 
PeiXi Su Linze Inland River Basin Research Station/Key Laboratory of Land Surface Process and Climate Change in Cold and Arid Regions, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China  
WenZhi Zhao Linze Inland River Basin Research Station/Key Laboratory of Ecohydrology of Inland River Basin, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China  
LiShan Shan College of Forestry, Gansu Agricultural University, Lanzhou, Gansu 730070, China  
基金项目:This work was financially supported by the National Natural Sciences Foundation of China (31300323) and China Postdoctoral Science Foundation Funded Project (2014M552515). We are grateful to the anonymous reviewers for their valuable comments, which substantially improved the manuscript. We thank Edanz editing for language assistance and also would like to thank the staff of Linze Inland River Basin Research Station.
 
Abstract:The cluster planting pattern (3 plants per hole) for cotton (Gossypium hirsutum L.) may increase economic yield over those of the traditional planting pattern (1 plant per hole) in arid regions of China. This increase in yield depends on either increased biomass production or greater partitioning to fruit. This study was conducted to determine whether differences in biomass accumulation or partitioning to reproductive growth contributed to higher yield in the cluster planting pattern compared with the traditional one. Growth parameters, biomass accumulation, crop growth rate and partitioning between cluster planting pattern and traditional planting pattern was compared in northwest of China. The biomass production and partitioning in cluster planting plot was higher than in traditional planting one. Biomass accumulation was faster early in the clustered treatment, and it was also higher at harvest time. Total dry matter production per unit area was significantly higher than in the traditional planting. On a per plant basis, dry matter accumulation was faster and total biomass production was significantly higher in the cluster planting pattern. Numbers of sympodia and boll sizes were also larger, indicating that facilitation among plants was promoting crop yield. The increase in yield in the cluster planting treatment occurred through increased partitioning of dry matter to fruits than in the traditional planting pattern, resulting in more bolls and increased lint yield in arid regions.
keywords:cluster planting  growth parameter  biomass  crop growth rate  distribution ratio
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