Relative Salt Tolerance of Rice During Germination and Early Seedling Development

Pearson, George A.; Ayers, A. D.; Eberhard, D.

doi:10.1097/00010694-196609000-00003

Cited by 95 publications

(40 citation statements)

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“…No entanto, houve decréscimo na porcentagem de germinação em todos os cultivares, na contagem final da germinação aos 14 dias , em função do aumento na concentração salina (Figura 2), sugerindo que a salinidade afetou o desenvolvimento de plântulas normais e diminuiu a viabilidade e o vigor das sementes. Resultado semelhante foi obtido por Pearson et al (1966), que verificaram uma queda de 50% na germinação de quatorze cultivares de arroz em solução salina, cuja condutividade elétrica estava entre 21,2 e 30,5 mmhos cm -1 . Várias espécies, como Vigna unguiculata Walp.…”

Section: Resultsunclassified

Qualidade fisiológica de sementes de arroz submetidas a estresse salino

Lima

Lopes²,

Moraes³

et al. 2005

Rev. bras. sementes

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O ensaio foi conduzido para avaliar a qualidade fisiológica de sementes de arroz, cultivares BRS Bojurú e IAS 12-9 Formosa (tolerantes ao sal) e BRS Agrisul e BRS 6 Chuí (sensíveis ao sal) tratadas com NaCl. As sementes foram embebidas em soluções salinas com zero, 25, 50, 75 e 100 mM de NaCl durante uma hora. A viabilidade e o vigor das sementes das cultivares BRS Agrisul e IAS 12-9 Formosa foram reduzidas com o aumento na concentração salina, porém o índice de velocidade de germinação não foi afetado pela salinidade.

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Section: Resultsunclassified

Qualidade fisiológica de sementes de arroz submetidas a estresse salino

Lima

Lopes²,

Moraes³

et al. 2005

Rev. bras. sementes

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show abstract

“…(Pearson et al, 1996). Salt tolerance is generally a sustained growth the plant in the soil environment impregnated with NaCl or other salt combinations (Gregorio et al, 1997).…”

Section: Resultsmentioning

confidence: 99%

Agriculture and the environment

Tisdell¹

2005

Economics of Environmental Conservation, Second Edition

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“…The genetic parameters of rice salt tolerance have been confirmed for a few morphological and physiological traits such as shoot length, root length, shoot fresh weight, shoot dry weight and shoot Na+/K+ concentration in saline soils (Yeo and Flowers, 1984;Pearson et al, 1996). Salinity screening studies vary quite drastically at both spatial and temporal levels depending on objectives (Grattan and Grieve, 1999).…”

Section: Assessment Of Salinity Tolerance In An Inbred Population Of mentioning

confidence: 94%

“…Rice is somewhat tolerant to salinity at germination stage (Abeysiriwardhana et al 2004), very sensitive at early seedling stage and gains tolerance during vegetative growth. It becomes sensitive during pollen development stage but increasingly tolerant at maturity stage (Pearson et al 1996). Expansion of salt affected lands resulting in the reduction of cultivable lands is a great challenge with the growing population in the world.…”

Section: Introductionmentioning

confidence: 99%

Assessment Of Salinity Tolerance In An Inbred Population Of Rice (Oryza Sativa L) Derived From A Japonica X Indica Cross

Ranawake

Nakamura

2013

Trop Agric Res & Ext

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Development of methodologies for the characterization of parental rice cultivars under different abiotic stress conditions is important to exploit the genetic components of the relevant stress in populations using molecular tools such as QTL analysis. Japonica rice cultivar Hyogokithanishiki and Indica rice cultivar Hokuriku-142 (Hokuriku) were evaluated for salinity tolerance by EC solution method and MS (Murashige and Skoog) medium method. A plant nutrient solution was used to apply salinity stress for 12-day-old plants in EC solution method. NaCl was used to manipulate the salinity level in both methods. Green shoot length, dry matter weight and root length immediately after the stress and after recovering under normal conditions were measured in replicated experiments. Results showed that green shoot length is the best parameter for evaluation of salinity tolerance using EC solution method at 5 dS/ m. This method was therefore applied to an inbred line population (163 F 6 lines) derived from the two cultivars. The frequency distribution of green shoot length in the population showed a nearly normal distribution for surviving lines. Transgressive segregants were observed in both directions indicating the contribution of both parents for salinity tolerance in the population. The bio assay data can be utilized for QTL analysis upon construction of genetic map.

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Relative Salt Tolerance of Rice During Germination and Early Seedling Development

Cited by 95 publications

References 0 publications

Qualidade fisiológica de sementes de arroz submetidas a estresse salino

Qualidade fisiológica de sementes de arroz submetidas a estresse salino

Agriculture and the environment

Assessment Of Salinity Tolerance In An Inbred Population Of Rice (Oryza Sativa L) Derived From A Japonica X Indica Cross

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