A simple model for simulating heat induced sterility in rice as a function of flowering time and transpirational cooling

Oort, P.A.J. van; Saito, Kazuki; Zwart, Sander J.; Shrestha, Suchit Prasad

doi:10.1016/j.fcr.2013.11.007

Cited by 58 publications

(43 citation statements)

References 48 publications

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“…According to the equations adjusted to the data, the smallest values for this variable were located between 17 and 18 ºC, corroborating the observations made by Walter et al (2010), Ñanculao et al (2013) and Oort et al (2014), and that temperatures below these values increase rice spikelet sterility. The inbred SC676 presented the smallest rate of increment in bulk spikelet sterility when temperatures dropped from 21 to 9 ºC.…”

Section: Resultssupporting

confidence: 78%

“…Higher sterility rates caused by the exposition to low temperatures have also been reported by Soltani et al (2001), Farrell et al (2006), Martins et al (2007), Jagadish et al (2008), Weerakoon et al (2008), Walter et al (2010), Wang et al (2013), and Oort et al (2014). These studies showed that the stress duration is an important factor as a temperature of 12 °C may not induce sterility if it occurs over a period shorter than 48 h, but can cause 100% of sterility when plants are exposed for more than six days to this stress, depending on the genotype sensitivity.…”

Section: Resultsmentioning

confidence: 51%

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Spikelet sterility in rice genotypes affected by temperature at microsporogenesis

Souza

Marschalek

Sangoi

et al. 2017

Rev. bras. eng. agríc. ambient.

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A B S T R A C TThis study evaluated the effect of temperatures during the phase of microsporogenesis on spikelet sterility of paddy rice and identified genotypes tolerant to low temperatures at this growth stage. The inbreds SC681, SC491, and SC676 and the cultivars Epagri 109 and SCS116 Satoru were assessed. The genotypes were submitted for three days in a growth chamber to five temperatures at microsporogenesis: 9, 12, 15, 18, and 21 o C. For each tested temperature, a control was kept in the greenhouse under environmental conditions. After harvest, full and empty spikelets were counted and weighed and the percentage of spikelet sterility was determined. Data were evaluated by variance analysis using the F test. Averages were compared by Tukey's test and regression analysis. The highest spikelet sterilities were observed when the genotypes were exposed to the temperatures of 9 and 12 o C. Genotype spikelet sterility was similar to that of the control at 21 ºC. The inbred SC 676 presented higher tolerance to lower temperatures is therefore potentially suited to generate a cultivar with adequate agronomic performance in rice growing areas prone to cold conditions at microsporogenesis.Esterilidade de espiguetas em genótipos de arroz irrigado afetada pela temperatura na microsporogênese R E S U M O Este trabalho teve como objetivo avaliar o efeito da temperatura na fase de microsporogênese sobre a esterilidade de espiguetas de arroz irrigado identificando, nesta fase, genótipos tolerantes a baixas temperaturas. Foram testadas as linhagens SC681, SC491 e SC676 e as cultivares Epagri 109 e SCS116 Satoru. Os genótipos foram submetidos por três dias em câmara de crescimento a cinco temperaturas na microsporogênese: 9, 12, 15, 18 e 21 o C. Para cada temperatura um tratamento testemunha foi mantido a temperatura ambiente na casa de vegetação. Após colheita realizaram-se a contagem e a pesagem das espiguetas cheias e vazias, determinando-se a percentagem de esterilidade. Os dados foram submetidos à análise de variância pelo teste F. Quando significativas, as médias foram comparadas pelo teste de Tukey e análise de regressão. A maior esterilidade foi observada nos genótipos submetidos às temperaturas de 9 e 12 ºC. A esterilidade foi similar entre testemunhas e a 21 o C. A linhagem SC676 apresentou maior tolerância à ocorrência de baixas temperaturas mostrando-se promissora para gerar uma cultivar com desempenho agronômico adequado, em regiões orizícolas propensas à ocorrência de frio na microsporogênese.

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Section: Resultssupporting

confidence: 78%

Section: Resultsmentioning

confidence: 51%

Spikelet sterility in rice genotypes affected by temperature at microsporogenesis

Souza

Marschalek

Sangoi

et al. 2017

Rev. bras. eng. agríc. ambient.

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“…Further detailed study is needed to verify the effect of VPD on spikelet sterility. Most of recent studies indicated that decreasing VPD under high temperature conditions decreased spikelet fertility (Abeysiriwardena et al, 2002;Matsui et al, 2007;Yan et al, 2008;Weerakoon et al, 2008;Tian et al, 2010;Yan et al, 2010;Julia and Dingkuhn, 2013;Van Oort et al, 2014). However many of these studies were conducted under high relative humidity conditions above 80% and compared with normal condition of 60% relative humidity.…”

Section: Discussionmentioning

confidence: 99%

“…Sheehy et al (1998) reported that thermal damage occurred by multiplicative factors such as high air temperature, high solar radiation, low wind speed, low vapor pressure deficit, etc. Recently, it is regarded that panicle temperature is better predictor variable of spikelet sterility than air temperature, because the calculated spikelet sterility with air temperature was overestimated compared to the observed (van Oort et al, 2014). Yoshimoto et al (2011) presented IM 2 PACT model using an energy balance to predict panicle temperature.…”

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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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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Simulation of Climate Change Effects on Evapotranspiration, Photosynthesis, Crop Growth, and Yield Processes in Crop Models

Kersebaum,

Stöckle

2022

Modeling Processes and Their Interactions in Cropping Systems

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A simple model for simulating heat induced sterility in rice as a function of flowering time and transpirational cooling

Cited by 58 publications

References 48 publications

Spikelet sterility in rice genotypes affected by temperature at microsporogenesis

Spikelet sterility in rice genotypes affected by temperature at microsporogenesis

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

Simulation of Climate Change Effects on Evapotranspiration, Photosynthesis, Crop Growth, and Yield Processes in Crop Models

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