Effects of Assimilate Supply and High Temperature during Grain-Filling Period on the Occurrence of Various Types of Chalky Kernels in Rice Plants (<i>Oryza sativa</i>L.)

Tsukaguchi, Tadashi; Iida, Yusuke

doi:10.1626/pps.11.203

Cited by 93 publications

(70 citation statements)

References 14 publications

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“…By contrast, white-belly is speculated to occur at the late stage due to detrimental environments or insufficient utilization of reserve substances (Taira, 1995). In addition, the differences in the location of chalkiness can be used to explain the different response of white-belly and white-core to hightemperature stress (Tsukaguchi and Iida, 2008) and alteration of source-sink ratio (Cheng et al, 2007). Thus, it is necessary to study white-belly and white-core separately when exploring the genetic or physiological causes of chalkiness.…”

mentioning

confidence: 99%

Endosperm Structure of White-Belly and White-Core Rice Grains Shown by Scanning Electron Microscopy

Zhang

et al. 2014

Plant Production Science

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mentioning

confidence: 99%

Endosperm Structure of White-Belly and White-Core Rice Grains Shown by Scanning Electron Microscopy

Zhang

et al. 2014

Plant Production Science

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“…The OTC-SAT-E design should have the same effect if the wind direction is reversed and is thus theoretically useful in such areas, although we had no chance to investigate the effects of an opposing wind direction. The linear gradient of daytime temperatures in OTC-SAT-A and -B from air intake to exhaust was similar to that in the temperature gradient chamber (TGC), which is used to estimate the effects of different degrees of temperature increases on the rice quality (Tsukaguchi and Iida, 2008). Therefore, an OTC-SAT without a sloping wall or air exhaust tunnel is as useful as a TGC for investigating the effects of various temperatures on the rice quality.…”

Section: Effect Of the Otc-sat And Improvement Of Its Temperature Gramentioning

confidence: 96%

Open-Top Chambers with Solar-Heated Air Introduction Tunnels for the High-Temperature Treatment of Paddy Fields

Chiba

Terao

2014

Plant Production Science

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“…High temperatures during the ripening stage can decrease the carbohydrate supply from vegetative organs to the developing grains (Ishii et al, 1977), resulting in poor grain filling (Matsushima and Wada, 1959;Sato and Inaba, 1976;Kobata and Uemuki, 2004;Tsukaguchi and Iida, 2008). Even when source activity is sufficient, grain growth can decrease at high temperatures because sink activity can be decreased by these high temperatures.…”

Section: Introductionmentioning

confidence: 99%

“…Several enzymes responsible for starch synthesis in the developing grains are down-regulated under high temperatures, and enzymes responsible for starch degradation are up-regulated by high temperatures (Lin et al, 2005;Yamakawa et al, 2007). In terms of carbohydrate supply, solar radiation during ripening also affects grain growth under high air temperatures (Matsushima and Manaka, 1957;Tsukaguchi and Iida, 2008).…”

Section: Introductionmentioning

confidence: 99%

Poor grain growth in rice under high temperatures affected by water temperature during vegetative stage

Shimono

Ishii

2012

J. Agric. Meteorol.

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Poor grain growth caused by high temperatures during the ripening stage is a critical problem for rice production. However, the magnitude of the reduction in grain growth also depends on the temperatures before the ripening stage. We hypothesized that the water temperature (T w ) during vegetative growth can affect grain growth under high temperatures during the ripening stage. We exposed the japonica cultivar 'Hitomebore' to four levels of T w during vegetative growth, ranging from 20 to 30℃, and examined grain growth under subsequent high temperatures during the ripening stage in a 3-year experiment using plants having only main stems produced by removing all tillers. We measured green leaf area, chlorophyll content, spikelet number per panicle, hull length, and grain size. To investigate the contribution of the sink-source balance to grain growth, we examined the effect of the interaction between T w during vegetative growth and a partial sink-removal treatment on grain weight. High air temperature during the ripening stage decreased grain weight, and low T w during vegetative growth significantly decreased grain weight under both normal and high air temperatures during the ripening stage, without a significant interaction. The responses of grain weight to T w during vegetative growth were observed even in plants with partial sink removal. The reduced grain growth under lower T w during vegetative growth resulted from decreased hull length of the grains. Our results support the hypothesis that low T w during vegetative growth can decrease grain growth in rice at high air temperatures during the ripening stage. It affects the hull size rather than the sink-source balance.

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Effects of Assimilate Supply and High Temperature during Grain-Filling Period on the Occurrence of Various Types of Chalky Kernels in Rice Plants (Oryza sativaL.)

Cited by 93 publications

References 14 publications

Endosperm Structure of White-Belly and White-Core Rice Grains Shown by Scanning Electron Microscopy

Endosperm Structure of White-Belly and White-Core Rice Grains Shown by Scanning Electron Microscopy

Open-Top Chambers with Solar-Heated Air Introduction Tunnels for the High-Temperature Treatment of Paddy Fields

Poor grain growth in rice under high temperatures affected by water temperature during vegetative stage

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