An Eco-friendly Aerobic rice (An Efficient Water Management Strategy for Rice Production)

Sidhu, Harvinder Kaur

doi:10.32381/jpsr.2021.37.02.5

Cited by 2 publications

(2 citation statements)

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“…RPHP accessions were cultivated under aerobic condition, which is a novel approach developed by crossing of lowland rice varieties with upland varieties to grow in rainfed, under non-flooded conditions (Bouman et al, 2007;Shashidhar, 2007). Atomic absorption spectrometry showed wide variation in grain Fe and Zn content among RPHP rice accessions.…”

Section: Fe and Zn Content In Grainsmentioning

confidence: 99%

Genetic Diversity Analysis Through SSR Markers for Grain Fe and Zn Content in Aerobic Rice

PRAJAPAT¹,

H.E.²,

SWAMY³

2022

AJMBES

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Rice is important for sustainable food and nutritional security; however, nominal micronutrient quantities in grains aggravate malnutrition in rice-eating poor populations. In this study, we evaluated genetic diversity in grain iron (Fe) and zinc (Zn) contents using trait-linked simple sequence repeat (SSR) markers in the representative subset of a large collection of local and exotic rice germplasm. The objective of the study was to evaluate genetic variability parameter and discern correlation for Iron (Fe) and Zinc (Zn) content in grains of different RPHP rice accessions grown in Kharif-2012 under aerobic condition. Single molecular marker analysis using 19 SSR markers showed that RM1089 and RM144 were associated with grain Fe and Zn content respectively. The genetic information generated and molecular markers identified from this study may be used for future biofortification programme of rice.

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Section: Fe and Zn Content In Grainsmentioning

confidence: 99%

Genetic Diversity Analysis Through SSR Markers for Grain Fe and Zn Content in Aerobic Rice

PRAJAPAT¹,

H.E.²,

SWAMY³

2022

AJMBES

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“…When grown in paddies with submersion, rice consumes an estimated 3000 to 5000 liters of water to produce a kilogram of grain [7]. Consequently, scientists have bred -aerobic rice‖ [8][9][10], which does not require water logging [11]. Coarse, long roots, capable of branching and penetrating into the deep layers of soil have been selected for in breeding for drought tolerance [12][13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Fluid Uptake Pathways Are Differentially Modified in Rice (Oryza sativaL.) in Response to Drought and Salinity

Chowdery,

Shashidhar,

Mathew

2023

Preprint

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Salinity and drought adversely affect rice production globally. Here we have examined physiological responses to drought and salinity across four rice cultivars with varying sensitivity to these stresses. The salt tolerant Pokkali restricts fluid entry to limit Na+uptake under saline stress, while the drought-tolerant ARB6 needs to enhance fluid uptake under drought. Surprisingly, Pokkali does reasonably well when subjected to drought as does ARB6 under saline stress - in contrast to the stress-sensitive but high yielding varieties IR-20 and Jaya. Both tolerant varieties use long roots to mine water under deficit conditions, increasing aerenchyma and suberization of the exodermis to provide oxygen to deep-reaching roots. Major alterations in patterns of suberization in both exodermis and endodermis are undertaken, the patterns being dramatically different under the two stresses. Genes implicated in suberin biosynthesis also showed variation in transcript levels under stress, corresponding with the observed suberization patterns. Osmolyte accumulation drives uptake of water under deficit conditions, while restricting fluid flow to symplastic routes minimizes Na+entry. Overall, the morphological and physiological responses of the tolerant varieties ensure adequate fluid flow through the transpiration stream without excessive salt uptake, thereby promoting growth under both drought and salinity.

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An Eco-friendly Aerobic rice (An Efficient Water Management Strategy for Rice Production)

Cited by 2 publications

References 0 publications

Genetic Diversity Analysis Through SSR Markers for Grain Fe and Zn Content in Aerobic Rice

Genetic Diversity Analysis Through SSR Markers for Grain Fe and Zn Content in Aerobic Rice

Fluid Uptake Pathways Are Differentially Modified in Rice (Oryza sativaL.) in Response to Drought and Salinity

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