Relationship between plant canopy characteristics and photosynthetic productivity in diverse cultivars of cotton (Gossypium hirsutum L.)

Feng, Genxiang; Luo, Honghai; Zhang, Yali; Gou, Ling; YanDi, Yao; Lin, Yongzeng; Zhang, Wangfeng

doi:10.1016/j.cj.2016.05.012

Cited by 44 publications

(22 citation statements)

References 27 publications

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“…The genetic basis of heterosis is perturbed and has been researched for almost a century using a variety of approaches, for instance, genetics [18,19], molecular biology [20] omics [21], and physiological biochemistry [22]. Many researchers tried to explain crop heterosis with the so-called gene action hypothesis of dominance [23][24][25], overdominance [9,26,27], and epistasis [28,29].…”

Section: Introductionmentioning

confidence: 99%

Comparative transcriptome analysis between inbred and hybrids reveals molecular insights into yield heterosis of upland cotton

et al. 2020

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Background: Utilization of heterosis has greatly improved the productivity of many crops worldwide. Understanding the potential molecular mechanism about how hybridization produces superior yield in upland cotton is critical for efficient breeding programs. Results: In this study, high, medium, and low hybrids varying in the level of yield heterosis were screened based on field experimentation of different years and locations. Phenotypically, high hybrid produced a mean of 14% more seed cotton yield than its better parent. Whole-genome RNA sequencing of these hybrids and their four inbred parents was performed using different tissues of the squaring stage. Comparative transcriptomic differences in each hybrid parent triad revealed a higher percentage of differentially expressed genes (DEGs) in each tissue. Expression level dominance analysis identified majority of hybrids DEGs were biased towards parent like expressions. An array of DEGs involved in ATP and protein binding, membrane, cell wall, mitochondrion, and protein phosphorylation had more functional annotations in hybrids. Sugar metabolic and plant hormone signal transduction pathways were most enriched in each hybrid. Further, these two pathways had most mapped DEGs on known seed cotton yield QTLs. Integration of transcriptome, QTLs, and gene co-expression network analysis discovered genes Gh_A03G1024,

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Section: Introductionmentioning

confidence: 99%

Comparative transcriptome analysis between inbred and hybrids reveals molecular insights into yield heterosis of upland cotton

et al. 2020

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“…We found that the LAI of intercropped soybean and maize are lower than that of the corresponding sole crop, indicating that the two species restrained each other in LAI of the competing crop when intercropped 33 . The DIFN was significantly improved under intercrops, showing that intercrop increased light transmission of the canopy and decreased the waste of light energy 34 . The maize–soybean intercrop improved the N and P uptake in maize, and there was no change for N and P concentration in maize, showing that N and P uptake improved were the consequence of increased in biomass production.…”

Section: Discussionmentioning

confidence: 94%

Effect of sowing proportion on above- and below-ground competition in maize–soybean intercrops

Ren

Zhang

Yan

et al. 2021

Sci Rep

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The relative contribution of above- and below-ground competition to crop yield under intercropping systems is critical to understanding the mechanisms of improved yield. Changes in the content of above- and below-ground biomass, leaf photosynthetic rate (Pn), leaf area index (LAI), chlorophyll meter reading (SPAD), diffuse non interceptance (DIFN), soil water storage (SWS), crop nitrogen (N), and phosphorus (P) uptake were examined in a 2-year trial of different maize–soybean intercropping systems on the Loess Plateau, China. Compared with the sole cropping system, shoot biomass of maize was increased by 54% in M2S2 and 62% in M2S4 strip intercropping treatment. The crop N and P uptake of maize increased significantly, by 54% and 50% in M2S2 and by 63% and 52% in M2S4 compared with their respective sole crop. LAI values of maize in intercropping systems were 14% and 15% for M2S2 and M2S4 less than that in the sole crop. The DIFN of intercropped maize was increased by 41% and 48% for M2S2 and M2S4 compared to monocrop. There were no significant differences in Pn and SWS in both crops between the two cropping systems. The contribution rate of DIFN in M2S2 and crop P uptake in M2S4 on the biological yield in intercropping system was the highest among all factors. We conclude that the sowing proportion affects above- and below-ground competition in maize–soybean intercropping systems.

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“…Canopy characteristics including leaf area index (LAI) are a significant element in optimizing the structure of crop canopy that can enhance photosynthetic productivity of the canopy and thus enhance future crop yield [73]. According to Liu et al [63], plant canopy affects the fraction of the photosynthetically active radiation incident (Fi) intercepted by crops.…”

Section: Canopy Characteristicsmentioning

confidence: 99%

Radiation Dynamics on Crop Productivity in Different Cropping Systems

Arina

Martini

Surdiana

et al. 2021

International Journal of Agronomy

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Global demand for food has always been on the increase due to the increase of the population in this world. Intercropping is one of the alternatives of agronomic practices that is widely practiced in ensuring food security and enhancing yield stability. Strip, mixed, and relay intercropping can be practiced to increase crop production. In addition to achieving a successful intercropping system, factors such as suitable crops, time of sowing, maturity of the crop, and plant density need to be considered before and during planting. Besides, practiced intercropping becomes a useful cropping system to increase efficient resource utilization, enhance biodiversity, promote soil health, enhance soil fertility, erosion control, yield advantage, weed, pest, and disease control, insurance against crop failure, ecosystem and modification of microclimate, market instability, and increase farmers income. Crop productivity in any types of cropping system implemented relies primarily on the interception of photosynthetically active radiation (PAR) of crop canopy and conversion of intercepted radiation into biomass or known as radiation use efficiency (RUE). Both PAR and RUE are important measurements that have significant roles in crop growth and development in which the accessibility of these radiation dynamics is connected with the leaf area index and crop canopy characteristics in maximizing yield as well as total productivity of the crop component in intercropping systems.

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Relationship between plant canopy characteristics and photosynthetic productivity in diverse cultivars of cotton (Gossypium hirsutum L.)

Cited by 44 publications

References 27 publications

Comparative transcriptome analysis between inbred and hybrids reveals molecular insights into yield heterosis of upland cotton

Comparative transcriptome analysis between inbred and hybrids reveals molecular insights into yield heterosis of upland cotton

Effect of sowing proportion on above- and below-ground competition in maize–soybean intercrops

Radiation Dynamics on Crop Productivity in Different Cropping Systems

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