Shading tolerance in rice is related to better light harvesting and use efficiency and grain filling rate during grain filling period

Wang, Li; Deng, Fei; Wang, Ren

doi:10.1016/j.fcr.2015.05.010

Cited by 108 publications

(116 citation statements)

References 33 publications

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“…Compared to ambient sunlight treatment, both Y(II) and ETR were obviously raised under shade conditions, while F v /F m and NPQ showed no significant differences between ambient sunlight and shading treatment (Li et al, 2010). Wang et al(2015) declared that shade treatment greatly increased the F v /F m and reduced the ETR, which may be attributed to the decrease in excitation capture efficiency. The Y(II), qP and NPQ values showed significant differences resulting from the use of different cultivars (Wang et al, 2015).…”

Section: Different Responses To Low Light Intensity In Chlorophyll Flmentioning

confidence: 88%

“…Wang et al(2015) declared that shade treatment greatly increased the F v /F m and reduced the ETR, which may be attributed to the decrease in excitation capture efficiency. The Y(II), qP and NPQ values showed significant differences resulting from the use of different cultivars (Wang et al, 2015). In our present experiment, the dynamic change in chlorophyll fluorescence characteristics showed a close correlation with the different cultivars of the two maize NILs.…”

Section: Different Responses To Low Light Intensity In Chlorophyll Flmentioning

confidence: 99%

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Comparative studies on the photosynthetic characteristics of two maize (Zea mays L.) near-isogenic lines differing in their susceptibility to low light intensity

Qian

Zhang

Zhong

et al. 2017

Emir. J. Food Agric

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Section: Different Responses To Low Light Intensity In Chlorophyll Flmentioning

confidence: 88%

Section: Different Responses To Low Light Intensity In Chlorophyll Flmentioning

confidence: 99%

Comparative studies on the photosynthetic characteristics of two maize (Zea mays L.) near-isogenic lines differing in their susceptibility to low light intensity

Qian

Zhang

Zhong

et al. 2017

Emir. J. Food Agric

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“…Variation in rice genotypes response against low irradiation has been shown in several studies (Demao and Xia 2003;Sopandie et al 2003;Wang et al 2015;Wang et al 2016). Reduction in photosynthetic rate caused by shading has been shown lower in tolerant genotypes compared to sensitive genotypes (Demao and Xia 2003;Wang et al 2015). The response was associated with the activity of ribulose-1,5-bisphosphate carboxylase/oxygenase (RuBPCO) in which the reduction of the RuBPCO activities in tolerant cultivar was smaller than sensitive cultivar (Demao and Xia 2003).…”

Section: Introductionmentioning

confidence: 99%

“…Reduction in light intensity interrupt photosynthetic activities, decrease plant growth and biomass which ultimately affect grain yield (Sopandie et al 2003, Liu et al 2014Wang et al 2015). Variation in rice genotypes response against low irradiation has been shown in several studies (Demao and Xia 2003;Sopandie et al 2003;Wang et al 2015;Wang et al 2016). Reduction in photosynthetic rate caused by shading has been shown lower in tolerant genotypes compared to sensitive genotypes (Demao and Xia 2003;Wang et al 2015).…”

Section: Introductionmentioning

confidence: 99%

“…The chlorophyll a and ratio of chlorophyll a/b in tolerant genotype was also shown higher in shading tolerant rice genotype compared to sensitive genotype under low radiation (Sopandie et al 2003). Wang et al (2015) suggested the increase in chlorophyll content of tolerant genotype as adaptive capacity respond to low light intensity to improve plant ability in light harvest and to increase their photosynthetic rate. This adaptive mechanism allowed rice plant to increase grain filling under shading condition (Wang et al 2015;Wang et al 2016).…”

Section: Introductionmentioning

confidence: 99%

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Variability of upland rice genotypes response to low light intensity

Hairmansis¹,

Yullianida²,

Supartopo³

et al. 2017

Biodiversitas

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Abstract. Hairmansis A, Yullianida, Supartopo, Jamil A, Suwarno. 2017. Variability of upland rice genotypes response to low light intensity. Biodiversitas 18: 1122Biodiversitas 18: -1129. Plantation areas have a great potential to be utilized for upland rice production through intercropping. One of major constraints in the cultivation of upland rice as intercropping is low light intensity caused by shading. Improvement of rice varieties for shading tolerance is therefore important to increase rice production in upland areas. The objective of this study was to investigate the variability of upland rice genotypes responses to shading and identify the best genotypes for intercropping rice cultivation. Thirty-eight upland rice breeding lines, the shading tolerant rice variety Jatiluhur, and the shading susceptible rice variety IR64 were evaluated for their response to low light intensity in the greenhouse and the field. Greenhouse screening was conducted to determine their shading tolerance in vegetative stage while evaluation in the field was performed to evaluate their agronomic performance under 55% shading and normal conditions. Variation in upland rice genotypes on low light stress was revealed both in greenhouse and field trials. In the greenhouse trial, 12 genotypes showed higher survival rate compared to tolerant rice variety Jatiluhur. Field evaluation demonstrated that 55% shading increased plant height, reduced productive tiller number, delayed flowering time, increased spikelet sterility and reduced grain yield. Upland rice breeding line B11908F-TB-3-WN-1 showed high yield relative in shading condition compared to normal condition and had high-stress tolerance index (STI) which indicated the genotype was tolerant to shading.

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Shading decreases rice yield by impeding grain‐filling progress after heading

Deng

Hong

et al. 2020

Agronomy Journal

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Shading stress decreases both the yield and quality of rice (Oryza sativa L.), which has become a serious problem in rice production worldwide. However, the effect of shading stress on the grain-filling progress of rice is not well understood. In this study, field experiments were conducted to investigate the effect of shading on the grain-filling progress and grain yield of rice at Hanyuan and Wenjiang in Sichuan, China, between 2018 and 2019. The results showed that shading after heading significantly decreased the spikelet-filling rate and grain weight, as well as the dry weight of grains panicle-1 , 30 d after shading; these traits were closely related to the grain yield of rice. Hence, the grain yield decreased by 13.72-22.54% and 6.86-14.35% at Hanyuan and Wenjiang, respectively. However, the influence of shading stress on the spikelet-filling rate, grain weight, and dry weight of grains panicle-1 30 d after shading differed according to spikelet positions. In general, these influences were greater on spikelets at the bottom and middle positions than on those at the top position. Furthermore, the effects of shading stress on rice differed across study sites; shading stress had a greater effect on grain weight at Hanyuan, but a greater effect on spikelet-filling rate at Wenjiang.

show abstract

Shading tolerance in rice is related to better light harvesting and use efficiency and grain filling rate during grain filling period

Cited by 108 publications

References 33 publications

Comparative studies on the photosynthetic characteristics of two maize (Zea mays L.) near-isogenic lines differing in their susceptibility to low light intensity

Comparative studies on the photosynthetic characteristics of two maize (Zea mays L.) near-isogenic lines differing in their susceptibility to low light intensity

Variability of upland rice genotypes response to low light intensity

Shading decreases rice yield by impeding grain‐filling progress after heading

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