Back to Search
Start Over
Study on Light Interception and Biomass Production of Different Cotton Cultivars
- Source :
- PLoS ONE, PLoS ONE, Vol 11, Iss 5, p e0156335 (2016)
- Publication Year :
- 2016
- Publisher :
- Public Library of Science, 2016.
-
Abstract
- Identifying the characteristics of light interception and utilization is of great significance for improving the potential photosynthetic activity of plants. The present research investigates the differences in absorbing and converting photosynthetically active radiation (PAR) among various cotton cultivars. Field experiments were conducted in 2012, 2013 and 2014 in Anyang, Henan, China. Ten cultivars with different maturity and plant architectures were planted at a density of 60,000 plants ha-1 in randomized blocks, with three replicates. The spatial distribution of light in canopy was measured and quantified with a geo-statistical method, according to which the cumulative amount of intercepted radiation was calculated by Simpson 3/8 rules. Finally, light interception was analyzed in association with the biomass accumulation of different cultivars. The key results were: (1) late-maturing varieties with an incompact plant architecture captured more solar radiation throughout the whole growth period than middle varieties with columnar architecture and even more than early varieties with compact architecture, and they produced more biomass; (2) the highest PAR interception ratio and the maximum biomass accumulation rate occurred during the blossoming and boll-forming stage, when leaf area index (LAI) reached its peak; (3) the distribution within the canopy presented a significant spatial heterogeneity, and at late growing stage, the PAR was mainly intercepted by upper canopies in incompact-type plant communities, but was more homogeneous in columnar-type plants; however, the majority of radiation was transmitted through the canopy in compact-type colonies; (4) there was not a consistent variation relationship between the cumulative intercepted PAR (iPAR) and biomass among these cultivars over the three years of the study. Based on these results, we attempted to clarify the distinction in light spatial distribution within different canopies and the patterns of PAR interception in diverse cotton cultivars with different hereditary characters, thereby providing a significant basis for researchers to select cultivars with appropriate growth period and optimal plant architecture for improvement of light interception and utilization.
- Subjects :
- 0106 biological sciences
Canopy
Leaves
Light
lcsh:Medicine
Cotton
Plant Science
01 natural sciences
Biochemistry
Plant Products
Cultivar
Biomass
Photosynthesis
lcsh:Science
Plant Growth and Development
Biomass (ecology)
Numerical Analysis
Multidisciplinary
Plant Biochemistry
Plant Anatomy
Physics
Electromagnetic Radiation
Agriculture
04 agricultural and veterinary sciences
Built Structures
Spatial heterogeneity
Photosynthetically active radiation
Physical Sciences
Engineering and Technology
Solar Radiation
Interception
Research Article
Structural Engineering
Crops
Biology
Leaf area index
Gossypium
lcsh:R
Biology and Life Sciences
Fiber Crops
Radiobiology
Plant community
Agronomy
Interpolation
Plant Leaves
040103 agronomy & agriculture
0401 agriculture, forestry, and fisheries
lcsh:Q
Mathematics
010606 plant biology & botany
Crop Science
Developmental Biology
Subjects
Details
- Language :
- English
- ISSN :
- 19326203
- Volume :
- 11
- Issue :
- 5
- Database :
- OpenAIRE
- Journal :
- PLoS ONE
- Accession number :
- edsair.doi.dedup.....1ca5f6c7ca809415db7b9111f3d9a7c6