Genotypic variation for cold tolerance during reproductive development in rice: Screening with cold air and cold water

Farrell, T. C.; Fox, K. M.; Williams, Robert L.; Fukai, S.

doi:10.1016/j.fcr.2006.01.003

Cited by 124 publications

(95 citation statements)

References 22 publications

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“…In general, low temperature in rice at earlier stages retards seed germination and seedling growth; results in poor stand establishment, leaf discoloration and inhibited vegetative growth (Kaneda and Beachell 1974). Our findings corroborates with Farrell et al (2006) who regarded 13 and 15 °C temperature as the threshold nightly temperature for cold-tolerant and cold sensitive rice cultivars, respectively, that might induce cold damage. We further found similar trends in survival rates under the five continuing low temperature treatments, and the trend followed a pattern in which: survival rates were first increased, and at about the 10 th day reached their peak, and then decreased; the decreasing of survival rates became less with the increase in temperature (from 11 to 15 °C).…”

Section: Discussionsupporting

confidence: 81%

Exogenous application of plant growth regulators induce chilling tolerance in direct seeded super and non-super rice seedlings through modulations in morpho-physiological attributes

Mo¹,

Ashraf²,

Pan³

et al. 2016

Cereal Research Communications

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Recently, super rice has gained much importance due to its high yield potential while exogenous application of plant growth regulators (PGRs) is an important aspect in plant development and defense responses under stress conditions. In this study we conducted two pot experiments. Firstly, four super rice cultivars, viz. Peizataifeng, Huayou 213, Yuxiangyouzhan and Huahang 31 were subjected to a series of five chilling temperatures, i.e. 11 °C, 12 °C, 13 °C, 14 °C and 15 °C (day/night) for about 25-27 days. Secondly, seeds of Peizataifeng (super rice) and Yuejingsimiao 2 (non-super rice) were then treated with different combinations of salicylic acid (SA), brassinolide (BR), calcium chloride (CaCl 2 ) and fulvic acid (FA) and then exposed to chilling stress at 13 °C for four days. Resultantly, Peizataifen (super rice) was found with the lowest seedling survival rate at all chilling temperatures among all four super rice cultivars, however, it was still found more resistant when compared with Yuejingsimiao 2 (non-super rice) in the second experiment. Furthermore synergistic effect of all PGRs alleviated low temperature stress in both rice cultivars by improving seedling survival rates, leaf area, seedling dry weight, seedling height, root morphology and by modulating antioxidant enzymes, improving proline content and lowering lipid peroxidation.

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Section: Discussionsupporting

confidence: 81%

Exogenous application of plant growth regulators induce chilling tolerance in direct seeded super and non-super rice seedlings through modulations in morpho-physiological attributes

Mo¹,

Ashraf²,

Pan³

et al. 2016

Cereal Research Communications

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“…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: Resultssupporting

confidence: 52%

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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“…Sugarcane plants grown under high temperatures exhibited smaller internodes, increased tillering, early senescence, and reduced total biomass (Ebrahim et al, 1998). In rice, anthesis and fertilization and to a some extent microsporogenesis (booting), are the most susceptible stages to high temperature stress (Satake and Yoshida, 1978;Farrell et al, 2006).…”

Section: High Temperatures Stress (≤ 40mentioning

confidence: 99%

Alleviation of temperature stress by nutrient management in crop plants: a review

Waraich

Ahmad

Halim

et al. 2012

J. Soil Sci. Plant Nutr.

378

199

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The burgeoning population of world is expected to reach about 9-10 billion by the end of year 2050. Due to this rapidly increasing population, food productivity is decreasing. Temperature induced stress is an important environmental factor that influences the growth and development of plants. Both low and high temperatures affect plant growth and development at whole plant level, tissue and cell level and even at sub-cellular level. Temperature variation may affect morphology, anatomy, phenology and plant biochemistry at all levels of organization. Direct injuries due to high temperatures in plants include protein denaturation and aggregation, and increased fluidity of membrane lipids. Indirect or slower high temperature injuries include inactivation of enzymes in chloroplast and mitochondria, inhibition of protein synthesis, protein degradation and loss of membrane integrity. Low temperature stress during reproductive development induces flower abscission, pollen sterility, pollen tube distortion, ovule abortion and reduced fruit set, which ultimately lowers yield. A number of approaches are being used to alleviate the effect of temperature stress in crop plants. Proper plant nutrition is one of the good strategies to alleviate the temperature stress and in crop plants. Plant nutrients play a greater role in improving the temperature stress tolerance. In this paper we discuss the possible effective techniques to alleviate the temperature stress and the role of some macronutrients (nitrogen, potassium, calcium and magnesium) micronutrients (boron, manganese, and selenium) and salicylic acid in detail as how these nutrients play their role in alleviation of temperature stress in crop plant.

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Genotypic variation for cold tolerance during reproductive development in rice: Screening with cold air and cold water

Cited by 124 publications

References 22 publications

Exogenous application of plant growth regulators induce chilling tolerance in direct seeded super and non-super rice seedlings through modulations in morpho-physiological attributes

Exogenous application of plant growth regulators induce chilling tolerance in direct seeded super and non-super rice seedlings through modulations in morpho-physiological attributes

Spikelet sterility in rice genotypes affected by temperature at microsporogenesis

Alleviation of temperature stress by nutrient management in crop plants: a review

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