Salinity tolerance in rice varieties at different growth stages

Heenan, DP; Lewin, LG; McCaffery, DW

doi:10.1071/ea9880343

Cited by 141 publications

(73 citation statements)

References 9 publications

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“…Rice has been reported to be relatively tolerant to salinity stress during germination, active tillering and towards maturity, but sensitive during early seedling and reproductive stages [23,24]. An addition of as little as 50 mM NaCl in the soil can reduce rice yield significantly [25].…”

Section: Rice Response To Salinity Stressmentioning

confidence: 99%

Improvement of Salinity Stress Tolerance in Rice: Challenges and Opportunities

et al. 2016

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Rice (Oryza sativa L.) is an important staple crop that feeds more than one half of the world's population and is the model system for monocotyledonous plants. However, rice is very sensitive to salinity and is the most salt sensitive cereal crop with a threshold of 3 dSm −1 for most cultivated varieties. Despite many attempts using different strategies to improve salinity tolerance in rice, the achievements so far are quite modest. This review aims to discuss challenges that hinder the improvement of salinity stress tolerance in rice as well as potential opportunities for enhancing salinity stress tolerance in this important crop.

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Section: Rice Response To Salinity Stressmentioning

confidence: 99%

Improvement of Salinity Stress Tolerance in Rice: Challenges and Opportunities

et al. 2016

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“…Rice genotypes show wide variations in salinity tolerance due to additive gene effects [34]. Studies indicated that rice is more resistant at reproductive and grain filling than at germination and vegetative stages [35], as well as low levels of salinity can increase the resistance of rice to higher and lethal salinity levels [36]. At present, salinity is the second type of stress and is the most predominant hindrance to rice production after drought [37].…”

Section: Effect Of Salinity Stress In Rice Cropsmentioning

confidence: 99%

Response of Rice under Salinity Stress: A Review Update

Ghosh¹,

Ali²,

Gantait³

2016

J Rice Res

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Salinity has been a key abiotic constraint devastating crop production worldwide. Attempts in understanding salt tolerance mechanisms has revealed several key enzymes and altered biochemical pathways inferring resistance to crop plants against salt stress. The past decades have witnessed extensive research in development of salt tolerant cultivars via conventional means, improvised by modern era molecular tools and techniques. Rice (Oryza sativa L) is the staple food crop across several countries worldwide. Being a glycophyte by nature, its growth is severely imparted in presence of excess salt. Rice is susceptible to salinity specifically at the early vegetative and later reproductive stages and the response of the crop to excessive salt toxicity at biochemical and molecular level as well as physiological level is well studied and documented. An understanding of the specific response of rice to ion accumulation at the toxic level can aid in identifying the key factors responsible for retarded growth and limited production of rice with the future scope of mitigating the same. The present review summarizes the differential responses of rice, in particular, to salt toxicity enumerating the detailed morphological, physiological, biochemical and molecular changes occurring in the plant. An attempt to explain salinity tolerance and its future scope and implications in screening for salt tolerance has also been elucidated in the present study.

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“…Cultivated rice (Oryza sativa L.), a staple food for billions of people in the world, not being a halophyte is especially sensitive to salt (Gregrio et al, 1997;Munns et al, 1999). Grain yield of rice plants is reduced by 70% to 100% of its maximal yield performance by salinity (Heenan et al, 1988). Although the degree of salt tolerance of rice plants differs among species and varieties, some of them show high resistance to salinity (Yeo and Flowers, 1986) .…”

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confidence: 99%