The Difference in Sterility due to High Temperatures during the Flowering Period among Japonica-Rice Varieties

By Tsutomu Matsui, Kenji Omasa, T. Horie. 2001

326 citations recorded by the source corpus.

Summary The objectives of this study are to compare the floret sterility induced by a high temperature given in the daytime during the flowering period among nine japonica rice varieties, and to clarify the mechanism of the high-temperature-induced sterility. Nine japonica rice varieties were subjected to 35.0, 37.5 or 40.0°C day- temperature conditions (1000-1600) for six consecutive days using sun-lit phytotrons, and the percentage of fertility, pollination and germinated pollen grains on the stigmas were examined. The temperature that caused 50% sterility varied with the variety, and a difference of approximately 3.0°C was observed between the most tolerant and susceptible varieties. Under the 37.5°C day-temperature condition, the percentage of florets with 10 or more germinated pollen grains was roughly coincident with the percent fertility, but under the 40° C day-temperature condition, it was higher than the percent fertility. Many of the florets with less than 10 germinated pollen grains had less than 20 total pollen grains on their stigmas under both temperature conditions. From these results, we concluded that sure pollination under high-temperature conditions is an important factor and that the high-temperature tolerance of the processes following pollen germination is also required for fertility under excessively high temperature conditions.

Subfields: Ecology, Evolution, Behavior and Systematics, Plant Science, Soil Science

View Paper: https://www.semanticscholar.org/paper/28d6fc4e85616e9131674bda696982b628fb8b61

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Citations in the corpus

Consequences of high temperature under changing climate optima for rice pollen characteristics-concepts and perspectives (2018, background): “Matsui et al. (2001) noted only 20% spikelet fertility with 10 germinated pollen grains on stigma under mild stress while no fertility was noticed at 40°C. Declined pollen reception and viability on stigma under heat stress is a direct cause of yield reduction in rice (Fahad et al. 2015).”
High temperature stress effects on pollens of rice (Oryza sativa L.) genotypes (2014, unknown): “There are many reports on the effect of temperature during anthesis (Matsui et al., 2001; Matsui and Omasa, 2002).”
Correlation between Viability of Pollination and Length of Basal Dehiscence of the Theca in Rice undera Hot-and-Humid Condition (2005, background): “Cultivar differences in the tolerance to high temperatures at fl owering have been reported (Satake and Yoshida, 1978; Matsushima et al., 1982; Matsui et al., 2001b).”
Genetic analysis of heat tolerance at anthesis in rice (2010, background): “Genotypic variation in heat tolerance during the flowering period (usually 5- to 6-d duration) in indica species and japonica species (Yoshida et al., 1981; Matsui and Omasa, 2002; Matsui et al., 2001; Prasad et al., 2006; Jagadish et al., 2007, 2008) has been documented.”
Phenotyping Parents of Mapping Populations of Rice for Heat Tolerance during Anthesis (2008, background): “Rice genotypes have been screened for tolerance to high temperature during fl owering (Satake and Yoshida, 1978; Matsui et al., 2001; Matsui and Omasa, 2002; Prasad et al., 2006a) at temperatures up to 41°C and for durations ranging from 2 h to the whole crop cycle.”
High temperature stress and spikelet fertility in rice (Oryza sativa L.). (2007, unknown): “Key words: Anthesis, heat tolerance, seed-set, spikelet fertility, rice, temperature.”
High nighttime temperatures affect rice productivity through altered pollen germination and spikelet fertility (2009, background): “As in the present work, PPG decreased in many crops with an increase in temperature (Hall, 1992; Matsui et al., 2001).”
Sensitivity of Grain Sorghum to High Temperature Stress during Reproductive Development (2008, unknown): “In studies on peanut and rice, microsporogenesis (about 3 to 5 d before fl owering) and fl owering (at anthesis) were relatively more sensitive to HT compared with postfl owering stages (Prasad et al., 1999; Matsui et al., 2001).”
Impact of high-temperature stress on rice plant and its traits related to tolerance (2011, background): “Matsui et al. (2001) found a 3 °C variation of temperatures causing sterility of 0·5 between the most tolerant and most susceptible cultivars among nine japonica cultivars.”
Heat-Induced Floret Sterility of Hybrid Rice (Oryza sativa L.) Cultivars under Humid and Low Wind Conditionsin the Field of Jianghan Basin, China (2010, background): “Although poor pollination is the main direct cause of HIFS, pollination of some cultivars was found to be stable even under high temperatures (Satake and Yoshida, 1978; Matsui et al., 2001).”
A review of the global climate change impacts, adaptation, and sustainable mitigation measures (2022, background): “Antagonistic effect of higher daytime temperature d on pollen sprouting proposed seed set decay, whereas, seed set was lengthily reduced than could be explicated by pollen growing at high temperatures 40◦C (Matsui et al. 2001).”