A Study on the Effect of Salinity Stress on the Growth and Yield of Some Native RiceCultivars of Kerala State of India

Joseph, E. Abhilash

doi:10.11648/j.aff.20130203.14

Cited by 23 publications

(17 citation statements)

References 34 publications

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“…Irrespective of variety, the higher grain yield may be attributed to combined effect of higher panicle m -2 , number of grains panicle -1 and individual heavier grain weight. Variation in number of panicle m -2 , grains panicle -1 and individual grain weight in different rice varieties in saline soils was also reported by Joseph and Mohanan (2013). The variety Binadhan-8 performed better in terms of grain yield compared to BRRI dhan47 in non-ghers under Rice-Rice cropping sequence whereas the contrast result was found in ghers under RiceFish cropping system.…”

Section: Resultsmentioning

confidence: 58%

Productivity and preference of salt tolerant Boro rice varieties in saline non-gher and gher ecosystems

Harun-Ur-Rashid

Nasrin²

2015

Bangladesh Rice J.

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Use of marginal coastal saline lands for rice cultivation is one of the options to sustain the net rice cropped area and rice production. On-farm farmer's participatory field trial was conducted in Bangladesh during 2012 and 2013 in non-gher and gher of medium saline ecosystems. The objective of the study was to identify suitable Boro variety for medium saline soils. Salt tolerant rice varieties, BRRI dhan47 and Binadhan-8 were evaluated along with widely adopted BRRI dhan28 in non-gher area. BRRI dha47, Binadhan-8 and Binadhan-10 were tested in saline ghers. Crops were irrigated with water of 1.89 to 3.5 dS m-1 at different growth stages respectively. In saline non-gher, where soil salinity went up to 6.35 dS m -1 , the highest grain yield was produced by Binadhan-8 (4.57 t ha -1 ) followed by BRRI dhan28 (4.23 t ha -1 ). The highest grain yield was recorded in Binadhan-10 (5.14 t ha -1 ) in ghers which was 6 and 12% higher than BRRI dhan47 and Binadhan-8 respectively at soil salinity of 7.43 dS m -1 . Farmers preferred Binadhan-10 as a salt tolerant variety for its higher grain yield and medium grain quality.

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Section: Resultsmentioning

confidence: 58%

Productivity and preference of salt tolerant Boro rice varieties in saline non-gher and gher ecosystems

Harun-Ur-Rashid

Nasrin²

2015

Bangladesh Rice J.

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“…The panicle stage of rice is also highly susceptible to salt stress and it has been reported that salinity can cause sterility if imposed during pollination and fertilisation (Shereen et al, ; Islam & Karim, ; Joseph & Mohanan, ). It was later observed that salinity resulted in delayed flowering, a reduction in the number of productive tillers, spikelet per panicle and fertile florets leading to greater decline in individual rice grain weight (Lutts et al, ; Zeng & Shannon, ).…”

Section: Effect Of Salinity On Rice Cropmentioning

confidence: 99%

Role of microRNAs in rice plant under salt stress

Mittal

Sharma

et al. 2015

Ann Appl Biol

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Soil salinity is one of the most devastating factors threatening cultivable land. While low to moderate salt stress affects the plant growth rate and yields, the high-salt stress conditions are detrimental for plant growth. The problem of salinity is often compounded by mineral deficiencies and toxicities. Rice is essentially rated as salt-sensitive crop and its salt susceptibility is dependent on the growth stage. The genetic processes that are involved in coordinating the responses to salinity in rice are not very clearly understood, but can be somewhat explained by mechanisms that regulate ion homeostasis, osmolyte production, scavenging of toxic radicals, water conduction and root-shoot response coordination. This is achieved by modifying the gene expression. The microRNAs (miRs) represent an important class of endogenous small RNAs that have the potential to regulate gene expression at post-transcriptional levels. This review discusses the impact of salinity on rice crop and the current knowledge in the area of miRs with their role in the adaptive response to salt and other abiotic stresses, with a focus on rice.

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“…The oxidative stress rapidly increases the turnover of cellular enzymes, structural proteins, the constituents of cellular membranes, and other biomolecules and metabolites (Joseph and Mohanan 2013). Autophagy ''self eating'' highly conserved cellular degradation mechanism the degraded portions of cytosol and organelles confiscated to autophagosome and finally to vesicle in plants and to lysosome (in animals) for breakdown and recycling of macromolecules.…”

Section: Introductionmentioning

confidence: 99%

Biochemical and molecular changes induced by salinity stress in Oryza sativa L.

Khan

Hemalatha

2016

Acta Physiol Plant

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Salinity stress constrains the growth, development, and yield in crops. Rice is an important cereal crop highly affected by salinity. To ensure the agriculture production in salt-affected soils, it is enormously entail to understand the salt adaptation strategies of plants. Salinity directly affects the morphology, physiology, and metabolism of the plants. The current study was carried out to check the influence of different concentrations of sodium chloride on rice cultivar. Higher concentration of the NaCl showed significant reduction in the growth, pigment system, and metabolites in rice cultivars. Salinity also elicited the antioxidant enzymes (CAT, SOD, and POX) response and gene expression. Cell biological studies showed the H 2 O 2 production and nuclear fragmentation due to alleviated salinity stress. To delineate the portrayal of antioxidant proteins and autophagy mechanism in salinity stress, the homologs of rice CAT1, Mn-SOD, GPX, ATG1, and ATG6 genes were retrieved from blast search. The realtime PCR analysis showed differential expression of genes and depicts new molecular insight of target genes to understand the salinity stress and autophagy-mediated stress signaling pathways.

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A Study on the Effect of Salinity Stress on the Growth and Yield of Some Native RiceCultivars of Kerala State of India

Cited by 23 publications

References 34 publications

Productivity and preference of salt tolerant Boro rice varieties in saline non-gher and gher ecosystems

Productivity and preference of salt tolerant Boro rice varieties in saline non-gher and gher ecosystems

Role of microRNAs in rice plant under salt stress

Biochemical and molecular changes induced by salinity stress in Oryza sativa L.

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