Genotypic variation in spatiotemporal distribution of canopy light interception in relation to yield formation in cotton

Publication Overview
TitleGenotypic variation in spatiotemporal distribution of canopy light interception in relation to yield formation in cotton
AuthorsXing F, Han Y, Feng L, Zhi X, Wang G, Yang B, Fan Z, Lei Y, Du W, Wang Z, Xiong S, Li X, Li Y
TypeJournal Article
Journal NameJournal of Cotton Research
Volume1
Year2018
Page(s)13
CitationXing F, Han Y, Feng L, Zhi X, Wang G, Yang B, Fan Z, Lei Y, Du W, Wang Z, Xiong S, Li X, Li Y. Genotypic variation in spatiotemporal distribution of canopy light interception in relation to yield formation in cotton. Journal of Cotton Research. 2018 NOV 7; 1:13
Publication CodeJCR-1-13

Abstract

Background Within-canopy interception of photosynthetically active radiation (PAR) impacts yield and other agronomic traits in cotton (Gossypium hirsutum L.). Field experiments were conducted to investigate the influence of 6 cotton varieties (they belong to 3 different plant types) on yield, yield distribution, light interception (LI), LI distribution and the relationship between yield formation and LI in Anyang, Henan, in 2014 and 2015. Result The results showed that cotton cultivars with long branches (loose-type) intercepted more LI than did cultivars with short branches (compact-type), due to increased LI in the middle and upper canopy. Although loose-type varieties had greater LI, they did not yield significantly higher than compact-type varieties, due to decreased harvest index. Therefore, improving the harvest index by adjusting the source-to-sink relationship may further increase cotton yield for loose-type cotton. In addition, there was a positive relationship between reproductive organ biomass accumulation and canopy-accumulated LI, indicating that enhancing LI is important for yield improvement for each cultivar. Furthermore, yield distribution within the canopy was significantly linearly related to vertical LI distribution. Conclusion Therefore, optimizing canopy structure of different plant type and subsequently optimizing LI distribution within the cotton canopy can effectively enhance the yield.
Properties
Additional details for this publication include:
Property NameValue
Accepted Date2018 SEP 21
Epub Date2018 NOV 7
Journal CodeJCR
Publication CodeJCR-1-13
URLhttps://jcottonres.biomedcentral.com/articles/10.1186/s42397-018-0012-z
LanguageEnglish
DOI10.1186/s42397-018-0012-z
KeywordsCotton cultivars, Light interception, Plant type structure, Boll distribution, Yield