Leaf photosynthetic performance related to higher radiation use efficiency and grain yield in hybrid rice

Huang, Min; Shan, Shuanglü; Zhou, Xuefeng; Chen, Jiana; Cao, Fuliang; Jiang, Ligeng; Zou, Yingbin

doi:10.1016/j.fcr.2016.03.009

Cited by 76 publications

(49 citation statements)

References 26 publications

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“…High grain yield of hybrid rice has been obtained when this rice was bred under sparse planting conditions to achieve greater biomass production (Huang et al, 2016; Katsura et al, 2007; Laza et al, 2001), longer leaf area duration (Jiang et al, 2015), large LAI (Lin et al, 2009), and high productive tiller percentage (Wang et al, 2014). However, few studies have reported the effect of dense planting on RUE, especially for hybrid rice cultivars.…”

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confidence: 99%

Effect of Dense Planting of Hybrid Rice on Grain Yield and Solar Radiation Use in Southeastern China

et al. 2019

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Dense planting has been recommended as a promising practice for achieving greater grain yield. However, whether this practice is suitable for hybrid rice (Oryza sativa L.) is unknown. To evaluate the response of grain yield and canopy structure traits to planting density in hybrid cultivars, field experiments were conducted with inbred-indica (Huanghuazhan), inbred-japonica (Xiushui09), hybrid-indica (Tianyouhuazhan), and hybrid-japonica (Chun-you84 or Yongyou12) cultivars at five planting densities (40, 26.7, 20, 16.7, and 13.3 hills m -2 , designated as D1, D2, D3, D4, and D5) in 2015 and 2016. Results showed that hybrid cultivars had 16.6 to 48.9% greater grain yield compared with inbred cultivars under the dense planting condition (D1 and D2), except for Tianyouhuazhan in 2015. The grain yield increased with increasing plant density in hybrid cultivars (except for Tianyouhuazhan in 2015), with the increase rates of 76.6, 108.0, and 138.6 kg Δhill -1 ha -1 for hybrid-japonica-Chunyou84 (2015), hybrid-indica-Tianyouhuazhan (2016), and hybrid-japonca-Yongyou12 (2016), respectively. However, the yield performance was significantly affected by the climate condition under dense planting. The grain yield of hybrid cultivars in 2015 averaged 8.3 t ha -1 , which was 36.3% lower than that in 2016 under dense planting (D1 and D2). We speculate that unfavorable climate would suppress the yield performance more under the dense planting conditions. Furthermore, results showed that greater plant density leads to an increase in plant radiation use efficiency, except for indica-hybird-Tianyouhuazhan. This might be attributed to the upright top leaves when the planting density increased, which resulted in smaller leaf angles and extinction coefficient of the canopy.

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Effect of Dense Planting of Hybrid Rice on Grain Yield and Solar Radiation Use in Southeastern China

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“…Dingkuhn et al (2015) differences in RUE are partly attributable to variation in terminal senescence which is strongly environment dependent. Huang et al (2016) results for hybrid rice suggested that higher Radiation Use Efficiency (RUE) and grain yield can be achieved by improving leaf photosynthetic traits including chlorophyll a content, Fv/Fm, φPSII and Rubisco content.…”

Section: Discussionmentioning

confidence: 99%

Relationship between growth traits and yield formation in Indica-type rice crop

López¹

2019

Agron. Mesoam.

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Introduction. Climatic variation is one of the causes for the decrease in yield and its variability in Indica-type rice (Oryza sativa L.). This evidences the necessity of the study of the interaction of meteorological variables with the behavior of rice cultivars, to establish the base of management of the harvest and increase of the yield. Objective. The objective of the present study was to relate the yield of rice with variables of plant growth. Materials and methods. Four rice cultivars were planted in the “dry” season of December 2004, February 2005 and January 2006, and in the rainy season of March 2006, April 2008 and 2009, in Los Palacios, Pinar del Río province, Cuba. The yield and its components, the dynamics of plant growth (LAI and dry matter), the variation of the dry matter of the internodes, peduncle, flag leaf, leaf and leaf sheath during the grain filling phase were evaluated the panicle growth in addition to the meteorological data. A multivariate analysis was used to relate the performance to the characteristics of the plants evaluated. Results. The yield was higher in the “dry” season and to obtain higher yields, the growth dynamics of the plant and the variation of the dry matter of the third internode during the grain filling were important. In both seasons, different source-sink relationships were established and these situations depended mainly on the temperature regime at which the plants were subjected. Conclusion. Breeders, in order to increase potencial yields, may fows their atttention in grow traits during vegetative stages.

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“…namely: (i) low temperature can reduce leaf photosynthesis and radiation use efficiency in rice (Huang et al, 2016b;Maruyama et al, 1990); and (ii) low temperature can prolong growth duration in rice and increase incident solar radiation during the growing season. Although high grain yield has been, and probably will be, the chief objective in rice production, good rice quality has been increasingly important as people's living standards improve (Yang et al, 2013).…”

Section: Discussionmentioning

confidence: 99%

Availability of existing early-season rice cultivars as resources for selecting high-yielding short-duration cultivars of machine-transplanted late-season rice

et al. 2019

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High-yielding short-duration cultivars are required due to the development of mechanized large-scale double-season rice (i.e. early- and late-season rice) production in China. The objective of this study was to identify whether existing early-season rice cultivars can be used as resources to select high-yielding, short-duration (less than 115 days) cultivars of machine-transplanted late-season rice. Field experiments were conducted in Yongan, Hunan Province, China in the early and late rice-growing seasons in 2015 and 2016. Eight early-season rice cultivars (Liangyou 6, Lingliangyou 211, Lingliangyou 268, Xiangzaoxian 32, Xiangzaoxian 42, Zhongjiazao 17, Zhongzao 39, and Zhuliangyou 819) with growth durations of less than 115 days were used in 2015, and four cultivars (Lingliangyou 268, Zhongjiazao 17, Zhongzao 39, and Zhuliangyou 819) with good yield performance in the late season in 2015 were grown in 2016. All cultivars had a growth duration of less than 110 days when grown in the late season in both years. Zhongjiazao 17 produced the maximum grain yield of 9.61 Mg ha−1 with a daily grain yield of 108 kg ha−1 d−1 in the late season in 2015. Averaged across both years, Lingliangyou 268 had the highest grain yield of 8.57 Mg ha−1 with a daily grain yield of 95 kg ha−1 d−1 in the late season. The good yield performance of the early-season rice cultivars grown in the late season was mainly attributable to higher apparent radiation use efficiency. Growth duration and grain yield of early-season rice cultivars grown in the late season were not significantly related to those grown in the early season. Our study suggests that it is feasible to select high-yielding short-duration cultivars from existing early-season rice cultivars for machine-transplanted late-season rice production. Special tests by growing alternative early-season rice cultivars in the late season should be done to determine their growth duration and grain yield for such selection.

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Leaf photosynthetic performance related to higher radiation use efficiency and grain yield in hybrid rice

Cited by 76 publications

References 26 publications

Effect of Dense Planting of Hybrid Rice on Grain Yield and Solar Radiation Use in Southeastern China

Effect of Dense Planting of Hybrid Rice on Grain Yield and Solar Radiation Use in Southeastern China

Relationship between growth traits and yield formation in Indica-type rice crop

Availability of existing early-season rice cultivars as resources for selecting high-yielding short-duration cultivars of machine-transplanted late-season rice

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