Response of the Flag Leaves of a Super-Hybrid Rice Variety to Drought Stress during Grain Filling Period

Liu, S. H.; Chen, G. X.; Yin, Jingjing; Chuangen, Lu

doi:10.1111/j.1439-037x.2010.00458.x

Cited by 14 publications

(10 citation statements)

References 17 publications

(25 reference statements)

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“…These findings suggest that antagonistic interactions between ABA and ethylene may mediate and influence grain filling in rice when subjected to soil drying during meiosis. Previous studies have described that the lipid permeability of the plant membrane increased under adversities, contributing to the biological accumulation of free radicals, such as O 2 -and MDA (Liu et al 2011). In order to cope with the harsh environment, plants themselves could generate a complex AES, such as CAT, POD, and SOD to counteract and eliminate these hazardous substances.…”

Section: G Hmentioning

confidence: 99%

“…To eliminate these ROS, plants have developed a complex anti-oxidative enzymes system (AES), including catalase (CAT), peroxidase (POD), and superoxide dismutase (SOD) (Nunez et al 2003). It has been reported that the drought damage degree was negatively correlated with CAT, POD, and SOD activities, but corresponded positively with MDA accumulation (Liu et al 2011). Although the AES and ROS in rice under water stress are well documented, little is known about the relationships of ABA, ethylene, AES, and ROS with the grain filling of the superior and inferior spikelets of rice under water stress.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Abscisic acid, ethylene and antioxidative systems in rice grains in relation with grain filling subjected to postanthesis soil-drying

et al. 2014

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This study tested the hypothesis that abscisic acid (ABA) and ethylene may mediate the effect of postanthesis soil drying on grain filling of rice (Oryza sativa L.) through regulating its anti-oxidative systems. Two rice cultivars were pot-grown and exposed, from 9 days post anthesis until maturity, to three soil drying treatments: well-watered (WW), moderate drying (MD), and severe drying (SD). The MD treatment, compared with the WW treatment, increased grain filling rate and the activities of CAT, POD, and SOD in superior and inferior spikelets, whereas the SD treatment decreased them. Both MD and SD treatments enhanced the grain contents of ABA, superoxide anion, and MDA, with a higher rise in the SD than in the MD. The MD treatment decreased ethylene evolution rate and 1-aminocycopropane-1-carboxylic acid (ACC) content, whereas the SD treatment increased them. The ratio of ABA-ACC (ABA/ACC) was the highest under the MD and the lowest under the SD treatment. There was a significant positive correlation between the ABA content, the activities of CAT, POD, SOD, and ABA/ACC with the grain filling rate, while the levels of ethylene and ACC and the contents of superoxide anion and MDA correlated negatively with the parameter. Exogenous chemical application verified the roles of ABA and ethylene in grain filling. The results suggest that an increase in ABA and decrease in ethylene in the grains under post-anthesis moderate soil drying could enhance the anti-oxidative enzyme activities, thus reducing free radicals in grains and accelerating grain filling rate of rice.

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Section: G Hmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Abscisic acid, ethylene and antioxidative systems in rice grains in relation with grain filling subjected to postanthesis soil-drying

et al. 2014

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“…, Liu et al. ) gained over the last 5–6 years have resulted in the use of direct selection for grain yield under drought stress. This has resulted in the identification of major QTL having consistent positive effects on rice yield across different genetic backgrounds and diverse environments—for example,, under severe drought stress conditions.…”

Section: Rice For Extreme Temperature and  Drier Environmentsmentioning

confidence: 99%

Genetic Advances in Adapting Rice to a Rapidly Changing Climate

Jagadish

Septiningsih

Kohli

et al. 2012

J Agronomy Crop Science

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Rice, with its wide geographic distribution extending from 50°N to 35°S, is expected to be the most vulnerable cultivated crop to future changing climates. Among the different abiotic stresses, extreme temperatures coinciding with critical developmental stages, increasingly frequent floods and drought spells, and worsening sea water inundation are some of the major threats to sustainable rice productivity. Following the successful implementation of molecular markerassisted backcrossing to introgress large-effect QTL for submergence tolerance in rice mega varieties, rice breeding for drought, salinity and, recently, heat tolerance is employing the same approach. Although tolerance for combined submergence and salinity has been achieved, developing rice varieties with multiple tolerance for other abiotic and biotic stresses and finding the appropriate agronomic package to exploit their performance remain a challenge. The major bottleneck is the lack of unidentified large-effect QTL for other abiotic stresses that are strongly influenced by genotype 9 environment (G 9 E) interaction. Rapid advances in the use of molecular tools, including a plethora of SNP markers, are expected to facilitate the development of major abiotic stress-tolerant rice. In response to the actual farmer field situation, progress achieved in understanding and developing independent abiotic stress tolerance is being exploited to combine tolerances (for example, heat and drought; salinity and submergence) to address emerging environmental problems across a wide range of rice ecosystems.

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“…Elas são afetadas pela competição, mas devido ao vigor e rápido desenvolvimento elas se sobrepõem mesmo assim tendo produção elevada (CHAUHAN; OPEÑA, 2013). Esta eficiência pode estar ligada à maior capacidade fotossintética em relação aos cultivares convencionais (CONCENÇO et al, 2011) e está relacionado com o sistema antioxidante da planta (LIU et al, 2011).…”

Section: Resultsunclassified

Supressão Da Irrigação: Redução Do Uso De Água E Produtividade Do Arroz Irrigado

Londero

Marchesan

Teló

et al. 2018

R_I

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SUPRESSÃO DA IRRIGAÇÃO: REDUÇÃO DO USO DE ÁGUA E PRODUTIVIDADE DO ARROZ IRRIGADO GUILHERME PILAR LONDERO1; ENIO MARCHESAN2; GUSTAVO MACK TELÓ3; MAURÍCIO LIMBERGER DE OLIVEIRA4; FELIPE TONETTO5; ISAC AIRES DE CASTRO6 E ANDERSON ANDRÉ HATSCHBACH7 1Doutorando do Programa de Pós-Graduação em Agronomia, Universidade Federal de Santa Maria, Av. Roraima nº 1000, 97105-900, Santa Maria/RS, e-mail: guilhermelondero@msn.com; 2Professor Titular do Departamento de Fitotecnia, Universidade Federal de Santa Maria, Av. Roraima nº 1000, 97105-900, Santa Maria/RS, e-mail: eniomarchesan@gmail.com;3Doutor em Agronomia. Research Associate at Louisiana State University, AgCenter - Weed Science. 4115 Gourrier Av., 70803. Baton Rouge LA, USA. Email: gustavo.telo@yahoo.com.br4Mestrando do Programa de Pós-Graduação em Agronomia, Universidade Federal de Santa Maria, Av. Roraima nº 1000, 97105-900, Santa Maria/RS, e-mail: mauriciodeoliveira8@hotmail.com; 5Mestrando do Programa de Pós-Graduação em Ciência do Solo, Universidade Federal de Santa Maria, Av. Roraima nº 1000, 97105-900, Santa Maria/RS, e-mail: feliptonetto@hotmail.com; 6Mestrando do Programa de Pós-Graduação em Engenharia Agrícola, Universidade Federal de Santa Maria, Av. Roraima nº 1000, 97105-900, Santa Maria/RS, e-mail: isacaires@yahoo.com.br; 7Graduando em Agronomia, Universidade Federal de Santa Maria, Av. Roraima nº 1000, 97105-900, Santa Maria/RS, e-mail: andersonhatschbach89@gmail.com; 1 RESUMO Um dos desafios da lavoura de arroz irrigado é reduzir o uso de água para irrigação e manter a alta produtividade. O objetivo deste trabalho foi avaliar a produtividade de grãos e a eficiência do uso de água (EUA) de dois cultivares de arroz irrigado submetidos a diferentes épocas de supressão da irrigação. O experimento foi realizado nas safras 2011/12 e 2012/13, na área didático experimental da Universidade Federal de Santa Maria, Rio Grande do Sul. Foram utilizados dois cultivares: o híbrido INOV CL e o cultivar Puitá INTA CL; e quatro épocas de supressão antecipada da irrigação: 5, 15, 25 e 35 dias após a antese (DAA). O delineamento experimental utilizado foi em blocos ao acaso com quatro repetições. Os resultados obtidos na época de supressão de irrigação não afetou a produtividade do híbrido INOV CL nas duas safras. O cultivar Puitá INTA CL apresentou redução de produtividade quando submetido à supressão da irrigação aos 5 e 15 DAA. A maior EUA foi observada para INOV CL nas duas safras. É possível manter a produtividade realizando supressão antecipada de irrigação e reduzir o volume de água aplicado, de acordo com cada cultivar. Palavras-chave: Oryza sativa L., eficiência do uso de água, suspensão da irrigação, volume de água utilizado. LONDERO, G. P.; MARCHESAN, E.; TELÓ, G. M.; OLIVEIRA, M. L.; TONETTO, F.; CASTRO, I. A.; HATSCHBACH, A. A.WITHHOLDING IRRIGATION: REDUCTION OF WATER USE AND GRAIN YIELD OF IRRIGATED RICE 2 ABSTRACT One of the challenges of irrigated rice is to reduce the use of water for irrigation and maintain high level of productivity. The aim of this study was to evaluate grain yield and water use efficiency (WUE) of two rice cultivars subjected to different moments of withholding irrigation. The experiment was conducted during the crop seasons 2011/12 and 2012/13 in the experimental area of the Federal University of Santa Maria, Rio Grande do Sul. Two cultivars were used: the hybrid cultivar INOV CL and Puita INTA CL with four moments of early irrigation withhold: 5, 15, 25 and 35 days after anthesis (DAA). The design was randomized block with four replications. The moment of irrigation withhold did not affect the productivity of hybrid INOV CL in two seasons. The cultivar Puita INTA CL decreased the grain yield only when the withholding irrigation was performed at 5 and 15 DAA. The highest WUE was observed for INOV CL in the two seasons. Productivity can be maintained by performing early irrigation withholding and reduce the amount of water applied, according to the cultivar. Keywords: Oryza sativa L., efficiency of water use, suspension of irrigation, volume of water used. SUPRESSÃO DA IRRIGAÇÃO: REDUÇÃO DO USO DE ÁGUA E PRODUTIVIDADE DO ARROZ IRRIGADO GUILHERME PILAR LONDERO1; ENIO MARCHESAN2; GUSTAVO MACK TELÓ3; MAURÍCIO LIMBERGER DE OLIVEIRA4; FELIPE TONETTO5; ISAC AIRES DE CASTRO6 E ANDERSON ANDRÉ HATSCHBACH7 1Doutorando do Programa de Pós-Graduação em Agronomia, Universidade Federal de Santa Maria, Av. Roraima nº 1000, 97105-900, Santa Maria/RS, e-mail: guilhermelondero@msn.com; 2Professor Titular do Departamento de Fitotecnia, Universidade Federal de Santa Maria, Av. Roraima nº 1000, 97105-900, Santa Maria/RS, e-mail: eniomarchesan@gmail.com;3Doutor em Agronomia. Research Associate at Louisiana State University, AgCenter - Weed Science. 4115 Gourrier Av., 70803. Baton Rouge LA, USA. Email: gustavo.telo@yahoo.com.br4Mestrando do Programa de Pós-Graduação em Agronomia, Universidade Federal de Santa Maria, Av. Roraima nº 1000, 97105-900, Santa Maria/RS, e-mail: mauriciodeoliveira8@hotmail.com; 5Mestrando do Programa de Pós-Graduação em Ciência do Solo, Universidade Federal de Santa Maria, Av. Roraima nº 1000, 97105-900, Santa Maria/RS, e-mail: feliptonetto@hotmail.com; 6Mestrando do Programa de Pós-Graduação em Engenharia Agrícola, Universidade Federal de Santa Maria, Av. Roraima nº 1000, 97105-900, Santa Maria/RS, e-mail: isacaires@yahoo.com.br; 7Graduando em Agronomia, Universidade Federal de Santa Maria, Av. Roraima nº 1000, 97105-900, Santa Maria/RS, e-mail: andersonhatschbach89@gmail.com; 1 RESUMO Um dos desafios da lavoura de arroz irrigado é reduzir o uso de água para irrigação e manter a alta produtividade. O objetivo deste trabalho foi avaliar a produtividade de grãos e a eficiência do uso de água (EUA) de dois cultivares de arroz irrigado submetidos a diferentes épocas de supressão da irrigação. O experimento foi realizado nas safras 2011/12 e 2012/13, na área didático experimental da Universidade Federal de Santa Maria, Rio Grande do Sul. Foram utilizados dois cultivares: o híbrido INOV CL e o cultivar Puitá INTA CL; e quatro épocas de supressão antecipada da irrigação: 5, 15, 25 e 35 dias após a antese (DAA). O delineamento experimental utilizado foi em blocos ao acaso com quatro repetições. Os resultados obtidos na época de supressão de irrigação não afetou a produtividade do híbrido INOV CL nas duas safras. O cultivar Puitá INTA CL apresentou redução de produtividade quando submetido à supressão da irrigação aos 5 e 15 DAA. A maior EUA foi observada para INOV CL nas duas safras. É possível manter a produtividade realizando supressão antecipada de irrigação e reduzir o volume de água aplicado, de acordo com cada cultivar. Palavras-chave: Oryza sativa L., eficiência do uso de água, suspensão da irrigação, volume de água utilizado. LONDERO, G. P.; MARCHESAN, E.; TELÓ, G. M.; OLIVEIRA, M. L.; TONETTO, F.; CASTRO, I. A.; HATSCHBACH, A. A.WITHHOLDING IRRIGATION: REDUCTION OF WATER USE AND GRAIN YIELD OF IRRIGATED RICE 2 ABSTRACT One of the challenges of irrigated rice is to reduce the use of water for irrigation and maintain high level of productivity. The aim of this study was to evaluate grain yield and water use efficiency (WUE) of two rice cultivars subjected to different moments of withholding irrigation. The experiment was conducted during the crop seasons 2011/12 and 2012/13 in the experimental area of the Federal University of Santa Maria, Rio Grande do Sul. Two cultivars were used: the hybrid cultivar INOV CL and Puita INTA CL with four moments of early irrigation withhold: 5, 15, 25 and 35 days after anthesis (DAA). The design was randomized block with four replications. The moment of irrigation withhold did not affect the productivity of hybrid INOV CL in two seasons. The cultivar Puita INTA CL decreased the grain yield only when the withholding irrigation was performed at 5 and 15 DAA. The highest WUE was observed for INOV CL in the two seasons. Productivity can be maintained by performing early irrigation withholding and reduce the amount of water applied, according to the cultivar. Keywords: Oryza sativa L., efficiency of water use, suspension of irrigation, volume of water used.

show abstract

Response of the Flag Leaves of a Super-Hybrid Rice Variety to Drought Stress during Grain Filling Period

Cited by 14 publications

References 17 publications

Abscisic acid, ethylene and antioxidative systems in rice grains in relation with grain filling subjected to postanthesis soil-drying

Abscisic acid, ethylene and antioxidative systems in rice grains in relation with grain filling subjected to postanthesis soil-drying

Genetic Advances in Adapting Rice to a Rapidly Changing Climate

Supressão Da Irrigação: Redução Do Uso De Água E Produtividade Do Arroz Irrigado

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