Heat-Induced Floret Sterility of Hybrid Rice (<i>Oryza sativa</i>L.) Cultivars under Humid and Low Wind Conditionsin the Field of Jianghan Basin, China

Tian, Xiaohai; Matsui, Tsutomu; Li, Shouhua; Yoshimoto, Mayumi; Kobayasi, Kazuhiro; Hasegawa, Toshihiro

doi:10.1626/pps.13.243

Cited by 84 publications

(60 citation statements)

References 15 publications

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“…This result was contrary to the previous reports that the increase of vapor pressure deficit reduced high temperature-induced spikelet sterility by increasing transpirational cooling of panicle (Matsui et al, 2007;Jagadish et al, 2007;Weerakoon et al, 2008;Tian et al, 2010;Julia and Dingkuhn, 2013). On the other hands, there was a paucity of studies that low relative humidity under high temperature accelerated rice spikelet sterility induction by desiccating anther and/or pollen.…”

Section: Discussioncontrasting

confidence: 94%

“…Tian et al (2010) reported that humid conditions (>80%) and low wind speed (<1m/s) might contribute to induce spikelet sterility, indicating that the two factors led to increase of panicle temperatures.…”

Section: Literature Reviewmentioning

confidence: 99%

“…Spikelet sterility was reported to be affected by not only air temperature but also vapor pressure deficit (Matsui et al, 2007;Tian et al, 2010;Julia and Dingkuhn, 2013;Van Oort et al, 2014). However, there have been some controversies on the humidity effects on high temperature-induced spikelet sterility of rice.…”

Section: Introductionmentioning

confidence: 99%

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Responses of spikelet fertility to air, spikelet, and panicle temperatures and vapor pressure deficit in rice

Jung

Lee

2015

J. Crop Sci. Biotechnol.

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Along with the rapid temperature rise anticipated in the future, high temperatureinduced spikelet sterility is expected to expose a serious problem in rice production.High relative humidity (RH) or small vapor pressure deficit (VPD) that suppresses transpirational cooling of rice panicle is reported to increase high temperatureinduced spikelet sterility.-1- The spikelet fertility showed wide range of variation from 97.3% to 4.6% depending on temperature treatments, years, and cultivars. The standardized partial ridge regression revealed that not only air temperature but also VPD was negatively associated with spikelet fertility. The spikelet fertility was well fitted to logistic equations not only of air temperature, internal temperature of spikelet, and surface temperature of panicle but also of VPD. The model performances showed no clear differences among temperatures employed to the model equations, while the bi-logistic equation model employing air temperature and VPD as independent variables showed the best performance.Our result was contrary to the previous reports that the increase of VPD (low humidity) reduced high temperature-induced spikelet sterility by increasing -2-transpirational cooling of panicle. However, it was inferred that increased VPD under high temperature conditions would accelerate desiccation of anther or pollen during flowering and result in the decline of pollen viability and germination, leading to lower spikelet fertility. Further detailed study is needed to verify VPD effects on spikelet fertility under high temperature conditions.

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Section: Discussioncontrasting

confidence: 94%

Section: Literature Reviewmentioning

confidence: 99%

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Responses of spikelet fertility to air, spikelet, and panicle temperatures and vapor pressure deficit in rice

Jung

Lee

2015

J. Crop Sci. Biotechnol.

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“…The main cause of HTIFS in field conditions in China was poor pollination (Tian et al, 2010). The sterility we observed in the Riverina seems somewhat different in the mechanism of HTIFS from those previous observations.…”

Section: Effect Of Panicle Temperature On Pollination and Seed Setcontrasting

confidence: 99%

“…Air temperatures over 35ºC induce rice floret sterility both in controlled-environment experiments (Satake and Yoshida, 1978;Kim et al, 1996;Matsui et al, 2001;Jagadish et al, 2007) and in the field (Osada et al, 1973;Tian et al, 2010). Some crop scientists therefore project that global warming will make high-temperature-induced floret sterility (HTIFS) an important problem Nakagawa et al, 2004).…”

mentioning

confidence: 99%

Lower-Than-Expected Floret Sterility of Rice under Extremely Hot Conditions in a Flood-Irrigated Field in New South Wales, Australia

Matsui

Kobayasi

Nakagawa

et al. 2014

Plant Production Science

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Genetics and Breeding of Heat Tolerance in Rice

Ye¹,

Liao

Redoña

et al. 2021

Rice Improvement

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Extreme weather events, especially heat waves, have become more frequent with global warming. High temperature significantly affects world food security by decreasing crop yield. Rice is intensively planted in tropical and subtropical areas in Asia, where high temperature has become a major factor affecting rice production. Rice is sensitive to high temperature, especially at booting and flowering stages. Rice varieties tolerant of high temperature are rare, and only a few heat-tolerant rice varieties have been identified. High temperature at booting and flowering stages causes sterile pollen, decreased pollen shedding, and poor pollen germination, which finally lead to a yield decrease. Heat-tolerant QTLs have been identified in different studies, but new breeding lines with considerable heat tolerance have not been bred using identified heat-tolerance donors and QTLs. Research on heat-tolerant donor identification, QTL mapping, gene cloning, and large-scale phenotyping technology is important for developing heat-tolerant rice varieties.

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Heat-Induced Floret Sterility of Hybrid Rice (Oryza sativaL.) Cultivars under Humid and Low Wind Conditionsin the Field of Jianghan Basin, China

Cited by 84 publications

References 15 publications

Responses of spikelet fertility to air, spikelet, and panicle temperatures and vapor pressure deficit in rice

Responses of spikelet fertility to air, spikelet, and panicle temperatures and vapor pressure deficit in rice

Lower-Than-Expected Floret Sterility of Rice under Extremely Hot Conditions in a Flood-Irrigated Field in New South Wales, Australia

Genetics and Breeding of Heat Tolerance in Rice

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