Physiological characteristics of high yield under cluster planting: photosynthesis and canopy microclimate of cotton

Xie, Ting; Su, Pengcheng; An, Lizhe; Shan, Lishan; Zhou, Zijuan; Chai, Zhixin

doi:10.1080/1343943x.2015.1128088

Cited by 11 publications

(4 citation statements)

References 19 publications

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“…The lowest value was obtained at a 10 cm plant spacing, while the highest value was obtained in the no thinning application. Xie et al (2016) reported that canopy temperature decreased with increased plant density, which differed from the present findings. This may have been due to differences in climate, temperature, humidity, leaf/canopy temperature measurements and irrigation.…”

Section: Bednarzcontrasting

confidence: 99%

“…The highest chlorophyll content was obtained in the no thinning application (43.75), and the lowest value was obtained at a 15 cm plant spacing (41.25). While the findings were in agreement with Janat and Khalout (2011), who reported that the chlorophyll content in the leaf was not influenced by plant density, Xie et al (2016) obtained different results.…”

Section: Bednarzsupporting

confidence: 90%

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Plant Spacing and Its Effect on Yield, Fibre Quality and Physiological Parameters in Cotton

Altundag¹,

Karademır

2021

JALSE

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The purpose of this study was to see how changing plant spacings affected cotton yield, yield components, fibre quality traits, and physiological parameters. In this study, six plant spacings (no thinning, 5, 10, 15, 20, and 25 cm) were investigated. Plant density caused significant differences in the number of first fruiting branches, number of bolls, ginning percentage, seed cotton yield, fibre yield, and normalised difference vegetative index (NDVI). Plant height, the number of sympodial branches, number of monopodial branches, boll weight, seed cotton weight/boll, number of 100-seed weight, seeds/boll, canopy temperature, chlorophyll content, leaf area, and fibre quality properties (micronaire, length, strength, elongation, uniformity, short fibre index, reflectance, yellowness, and spinning consistency index [SCI] were non-significant. The highest values of seed cotton yield, fibre yield, ginning percentage, number of first fruiting branches, and NDVI were obtained in the no thinning and 5 cm plant spacing applications, while the highest boll number was obtained at 20 and 25 cm plant spacings. In this study, physiological parameters, such as canopy temperature, leaf area, chlorophyll content, and fibre technological traits, were not affected by plant spacing. The highest seed cotton yield, fibre yield, ginning percentage and NDVI were obtained from no thinning and 5 cm intra-row spacing, indicating their impact on examined characteristics. Therefore, a yield estimation can be made in the flowering period with the NDVI in different plant densities in cotton.

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Section: Bednarzcontrasting

confidence: 99%

Section: Bednarzsupporting

confidence: 90%

Plant Spacing and Its Effect on Yield, Fibre Quality and Physiological Parameters in Cotton

Altundag¹,

Karademır

2021

JALSE

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“…However, at the canopy level, higher LAI is directly associated with higher density of crop stands. Generally, denser canopies are characterized by more efficient light interception, higher relative humidity and lower temperature (Xie et al., ), thus reducing VPD within these canopies. As VPD is the major driver for transpiration (Farquhar & Sharkey, ), the comparably higher LAI on plots fertilized with K effectively moderated ET without affecting g s .…”

Section: Discussionmentioning

confidence: 99%

Leaf, canopy and agronomic water‐use efficiency of field‐grown sugar beet in response to potassium fertilization

Jákli

Hauer-Jákli

Böttcher

et al. 2017

J Agronomy Crop Science

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Potassium (K) fertilization is important to maintain adequate concentrations of plant available K in agricultural soils to achieve best yields and improve crop stress tolerance and water-use efficiency (WUE). Water-use efficiency (WUE) can be expressed on various spatiotemporal scales, and it is known that responses of WUE to external stress are not uniform across scales. Multiscale evaluations of the impact of varying K fertilization on the WUE of C 3 crops under field conditions are missing so far. In the present field study, we evaluated effects of K fertilization on WUE of sugar beet (Beta vulgaris L.) on short-termed leaf-(WUE Leaf ) and canopy-scales (WUE Canopy ) and as the agronomic ratio of white sugar yield (WSY) to in-season water use (i.e. WUE WSY ). In K-fertilized plots, WUE WSY was enhanced by 15.9%. This effect is attributed to increased beet yield and WSY, as no differences in total in-season water use between fertilized and unfertilized plots were observed. Potassium (K) fertilization significantly enhanced the leaf area index, resulting in a more efficient depletion of soil moisture by roots in K-fertilized plots. As a consequence, WUE Leaf was increased due to stomatal adjustment. Potassium (K) improved WUECanopy only by tendency. It is concluded that K fertilization improves the WUE of field-grown sugar beet across scales, but processes that regulate WUE are highly scale dependent.

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“…At the same time, with the increase in population, the arable land area for cotton production has gradually decreased, and cotton grain competition has become increasingly significant [8], resulting in a downward trend of cotton production overall. Cotton production is a group production under field conditions, and the yield per unit area mainly depends on the photosynthetic capacity of the population per unit area [9]. Therefore, the establishment of a population structure with high light efficiency is a core issue in the cultivation of high-quality and high-yield cotton.…”

Section: Introductionmentioning

confidence: 99%

Effect of Spatial-Temporal Light Competition on Cotton Yield and Yield Distribution

et al. 2021

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The photosynthetically active radiation (PAR) of crop canopy is highly related to yield formation, but how it relates to yield and yield distribution is not well understood. The focus of this study was to explore the relationship between light competition under different densities and yield distributions of cotton. The experiment was conducted in 2019 and 2020 at the Cotton Research Institute of the Chinese Academy of Agricultural Sciences in Anyang city, Henan Province, China. A randomized block design was employed, with a total of three repeats. Each repeat had six density treatments: D1: 15,000; D2: 33,000; D3: 51,000; D4: 69,000; D5: 87,000; and D6: 105,000 plants·ha−1. As predicted, the results showed that the canopy light interception, leaf area index, plant height, and biomass of high-density cotton were higher than those of low-density cotton. The aboveground biomass produced by D6 was the highest, and was 12.9, 19.5, 25.4, 46.3, and 69.2% higher in 2019 and 14.3, 19.9, 32.5, 53.7, and 109.9% higher in 2020 than D5, D4, D3, D2, and D1, respectively. Leaf area, plant height, biomass, boll number, and boll weight were significantly correlated with the light interception rate. D5 (87,000 plants·ha−1) had a higher light interception rate and the highest yield. The highest lint yields produced by D5 were 1673.5 and 1375.4 kg·ha−1 in two years, and was 3.2, 4.3, 5.6, 9.7, and 24.7% higher in 2019, and 6.8, 10.6, 13.5, 21.5, and 34.4% higher in 2020 than D6, D4, D3, D2, and D1, respectively. The boll retention of the lower fruit branch under D5 reached 0.51 and 0.57 in two years, respectively. The shedding rate of the upper fruit branch decreased with the increase in cotton density in two years. The boll retention rate and shedding rate in the lower part of cotton plants were most closely related to light interception, with R2 values of 0.91 and 0.96, respectively. Our study shows cotton yield could be improved through higher light interception by optimizing planting density and canopy structure.

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Physiological characteristics of high yield under cluster planting: photosynthesis and canopy microclimate of cotton

Cited by 11 publications

References 19 publications

Plant Spacing and Its Effect on Yield, Fibre Quality and Physiological Parameters in Cotton

Plant Spacing and Its Effect on Yield, Fibre Quality and Physiological Parameters in Cotton

Leaf, canopy and agronomic water‐use efficiency of field‐grown sugar beet in response to potassium fertilization

Effect of Spatial-Temporal Light Competition on Cotton Yield and Yield Distribution

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