Reduction of Rice Chalky Grain by Deep and Permanent Irrigation Method; Effect on Growth and Grain Quality of Rice

Hayashi, Motoki; Sugiura, Komei; Kuno, Chikako; Endo, Ikuma; Tanaka, Yuichi; Yamauchi, Akira

doi:10.1626/pps.14.282

Cited by 10 publications

(3 citation statements)

References 33 publications

(41 reference statements)

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“…Under large-scale production, this phenomenon was commonly observed when the average temperature during 20 days after heading exceeded 27 °C. The types of grain chalkiness were usually depicted depending on the chalky site in grains (Yoshioka et al 2007;Guo et al 2011;Hayashi et al 2011). Moreover, the chalkiness in hybrid rice is more serious than that of conventional rice varieties, partly because of the relatively higher grain-filling rate on hybrid rice (Ma et al 2002) and higher temperatures during heading (Xu et al 2004).…”

Section: Discussionmentioning

confidence: 99%

Morphological and physiological properties of hybrid rice seeds with top-gray chalkiness

Chen

Yuan

Zhang³

et al. 2021

Bragantia

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Section: Discussionmentioning

confidence: 99%

Morphological and physiological properties of hybrid rice seeds with top-gray chalkiness

Chen

Yuan

Zhang³

et al. 2021

Bragantia

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“…For example, the utilization of varieties with different ripening timing or a shift in transplanting date could unsynchronize the ripening period and the high temperature period (Ishigooka et al 2017). It has also been reported that the incidence of CRG can be reduced by optimizing the application of agricultural materials such as fertilizers (Tanaka et al 2010), plant growth regulators (Fahad et al 2016a, b), and water management (Chiba et al 2017;Hayashi et al 2011). These are adaptive management strategies and technologies that can be implemented without much loss of cost and time.…”

Section: Long-term Strategy Combined With Other Countermeasuresmentioning

confidence: 99%

Breeding targets for heat-tolerant rice varieties in Japan in a warming climate

Masutomi

Takimoto

Manabe

et al. 2022

Mitig Adapt Strateg Glob Change

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The breeding of heat-tolerant (HT) varieties is considered an effective adaptation measure to reduce the impacts of global warming on crops. However, little is known about how much heat tolerance needs to be attained in the breeding of HT varieties and by when the HT varieties should be introduced in a warming climate. Here, we assessed the effect of the introduction of HT rice varieties on the incidence of low-quality rice grains (chalky rice grain, CRG, as a result of high temperatures), and formulated a breeding target for rice in Japan, where high incidence of CRG is already a concern. Varieties with a 3 °C higher temperature tolerance should be bred and introduced until the 2040s under representative concentration pathways (RCPs) 2.6 and 8.5, in the pessimistic scenario, considering the uncertainties in climate models and an impact assessment model, which were large. In the median case, varieties with a 1 and 2 °C higher temperature tolerance are needed until the 2040s under RCPs 2.6 and 8.5, respectively. The findings revealed necessary efforts in breeding research and programs under conditions of global warming.

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“…Aerobic rice cultivation, growing rice in well-drained instead of flooded soil, has been proposed as a means to increase water use efficiency (Bouman et al, 2005;Peng et al, 2006) as well as reducing greenhouse gas emission (Sharma et al, 2016) from rice production. A number of water management studies have reported on rice milling quality (e.g., Zhang et al, 2008;Hayashi et al, 2011), but not with aerobic rice. This study therefore aimed to evaluate how different rice varieties respond to N fertilizer and water management in milling quality as well as grain yield.…”

Section: Introductionmentioning

confidence: 99%

Responses of Milling Quality to Nitrogen and Water Management in Modern Long Grain Rice Varieties

Sreethong

Rerkasem

Dell

et al. 2019

OnLine Journal of Biological Sciences

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This study determined how nitrogen (N) fertilizer and water management affect grain yield and milling quality of 9 modern rice varieties with long, slender grain in two field experiments. The effect of N on rice grown in wetland culture was evaluated at 0, 60 and 120 kg N ha 1. In a second experiment the rice in aerobic and wetland culture were compared. The rice in both experiments were grown to maturity and evaluated for yield, head rice yield and chalkiness. Grain yield increased with increasing N application, head rice yield increased with increasing N in 8 varieties, while chalkiness was more than halved in 7 varieties. Grain N also increased with increasing N fertilizer, but high head rice yield in several varieties was associated with relatively low grain N. Under aerobic cultivation, all 9 varieties yielded less than in wetland culture, the head rice yield was lower and chalkiness was higher except in 2 varieties. In both experiments, grain yield was associated positively with head rice yield and negatively with chalkiness. Head rice yield and chalkiness were negatively associated in the water experiment but not in the N experiment. This study has shown that modern high yielding rice varieties generally respond positively to nitrogen fertilizer in better milling quality as well as in yield. Grain chalkiness of the varieties was more stable against variation in the environment than head rice yield.

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Reduction of Rice Chalky Grain by Deep and Permanent Irrigation Method; Effect on Growth and Grain Quality of Rice

Cited by 10 publications

References 33 publications

Morphological and physiological properties of hybrid rice seeds with top-gray chalkiness

Morphological and physiological properties of hybrid rice seeds with top-gray chalkiness

Breeding targets for heat-tolerant rice varieties in Japan in a warming climate

Responses of Milling Quality to Nitrogen and Water Management in Modern Long Grain Rice Varieties

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