Leaf Traits and Antioxidant Defense for Drought Tolerance During Early Growth Stage in Some Popular Traditional Rice Landraces from Koraput, India

Mishra, Swati S.; Panda, Debabrata

doi:10.1016/j.rsci.2017.04.001

Cited by 72 publications

(52 citation statements)

References 43 publications

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“…This germplasm collection represents a gene pool that can be explored for selection and improvement of drought tolerance in upland rice, as well as for the production of superior pigmented upland rice cultivars that are currently of limited availability in Indonesia (Santika and Rozakurniati, 2010;IAARD, 2012) and perhaps in other parts of the world as well. Some studies have investigated the use of osmo-priming compounds such NaCl, KCl or polyethylene glycol (PEG) to assess the effect of soil moisture stress on seed germination and on seedling growth (Islam et al, 2012;Singh et al, 2017a;Swapna and Shylaraj 2017;Mishra and Panda 2017). These priming methods, require specific standard methods to validate the moisture stress generated under field conditions (Singh et al, 2017b).…”

Section: Introductionmentioning

confidence: 99%

Drought tolerance indices for selection of drought tolerant, high yielding upland rice genotypes

Mau¹,

Ndiwa²,

Oematan³

et al. 2019

Aust J Crop Sci

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The purposes of this study were (1) to assess the effectiveness of drought tolerance indices for selection of drought tolerance in upland rice, and (2) to identify the most suitable drought tolerance indices to select for drought tolerant, high yielding upland rice genotypes. This study employed a Split Plot design consisting of irrigation levels as the main plots, and rice genotype as the sub-plot treatments. There were three main plots: 100% field capacity (FC); 75% FC; and 50% FC level. The subplot treatments consisted of 40 upland rice genotypes. Grain yields under no-stress and stressed conditions were used to calculate drought tolerance indices. There were significant variations in grain yields and drought tolerance indices between different rice genotype treatments. The indices from the literature found to be most suitable for the selection of drought tolerant upland rice cultivars were STI, GMP, MRP, HARM, REI, ATI, YI, SNPI. Ten genotypes from among the 40 tested-namely HK-07, ADN-04, PMK-01, ADN-05, NGR-022, ALR-02, HK-06, and KMD-01-were selected as combining drought tolerance with high yield potential.

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Section: Introductionmentioning

confidence: 99%

Drought tolerance indices for selection of drought tolerant, high yielding upland rice genotypes

Mau¹,

Ndiwa²,

Oematan³

et al. 2019

Aust J Crop Sci

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“… Experimental features Determination of early growth performances, Genotyping with drought tolerance linked rice microsatellite loci, Isolation of genomic DNA, PCR amplification, polymorphism screening and analysis of amplified products. Data source location Laboratory of Central University of Orissa, Koraput (82˚44̕ʹ54ʹʹ E to 18˚46̕ʹ47ʹʹ N), India Data accessibility Data is available with this article Related research article Mishra and Panda [1] Leaf traits and antioxidant defense for drought tolerance during early growth stage in some popular traditional rice landraces from Koraput, India. Rice Sci.…”

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confidence: 99%

Data on genetic potentiality of folk rice (Oryza sativa L.) genotypes from Koraput, India in reference to drought tolerance traits

et al. 2019

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Precise physiological and molecular marker-based assessment provides information about the extent of genetic diversity, which helps for effective breeding programmes. We have conducted detailed physiological and molecular marker-based assessment of selected eight indigenous rice landraces from Koraput, India along with tolerant (N22) and susceptible (IR64) check varieties under control and simulated drought stress using polyethylene glycol (PEG) 6000. After exposure to different levels of drought stress, relative germination performance (RGP), seedling vigour index (SVI) and relative growth index (RGI) were significantly declined in all the rice landraces compared to the control plants and significant varietal differences were observed. Genetic relationship among the studied rice landraces was assessed with 24 previously reported drought tolerance linked Simple Sequence Repeat (SSR) markers. A total of 53 alleles were detected at the loci of the 24 markers across the 10 rice accessions . The Nei's gene diversity ( He ) and the polymorphism information content ( PIC ) ranged from 0 to 0.665 and 0 to 0.687, respectively. Six SSR loci, RM276, RM411, RM3, RM263, RM216 and RM28199, provided the highest PIC values and are potential for exploring the genetic diversity of studied rice lines for drought tolerance. Four rice genotypes (Butkichudi, Haldichudi, Machakanta and Kalajeera) showed the highest genetic distance with tolerant check variety (N22) and can be considered as valuable genetic resources for drought breeding program.

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“…Seed hydration leads to the activation of key metabolic process. Elevated drought intensity reduce water uptake by seeds, thereby reducing seed germination rate and radicle development (Mishra and Panda, 2017). However, few rice landraces such as Kuliyadichan, Rajalakshmi exhibited considerable germination rate at -1.5MPa suggesting that the lower osmotic potential has no impact in the physical process of water uptake.…”

Section: Discussionmentioning

confidence: 99%

“…Consequently, the RS ratio was reduced under DS and the differential responses of the landraces to drought were related to their inherent genetic potential. Thus the RS ration and vigor index are considered as critical traits for identifying potential drought tolerant genotypes (Mishra and Panda, 2017). However, an increase in root growth under drought condition is a target trait and is considered as an adaptive strategy to increase water uptake (Basu et al, 2016).…”

Section: Discussionmentioning

confidence: 99%

Phytohormone cross-talk and antioxidant gadgets tussles osmotic stress in indigenous rice landraces during seed germination

Anupriya

Senthil

Rajakumar

et al. 2020

Preprint

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Seed germination plays a critical role in determining rice productivity under drought stress. We evaluated 100 traditional rice landraces originated from different agro-ecological zones of Tamil Nadu along with drought- susceptible (IR 64) and drought- tolerant (IR 64 DRT) checks. Moisture stress was induced using PEG 6000 and screening done over a range of osmotic potentials (-) 10 bars, (-) 12.5 bars and (-)15 bars for a period of 5 d. Physio-morphological traits such as germination rate, survival per cent, root and shoot length, vigor index, RS ratio and relative water content (RWC) were assessed during early drought stress. We observed significant changes in the seed macromolecules, phytohormone levels (GA and IAA), osmolytes and antioxidant responses (catalase and superoxide dismutase) between drought stress and control treatments. Kuliyadichan registered significantly higher IAA and GA (44% and 35% respectively over drought tolerant check IR 64 DRT) at drought stress, whereas all the landraces showed an elevated catalase activity. In PC analysis, first three PCs captured 88.93% of the total variation; significant differences were detected among genotypes with respect to the studied parameters. Six traditional landraces such as Kuliyadichan, Rajalakshmi, Sabhagidhan, Nootripathu, Chandaikar and Mallikar were selected and their inherent drought tolerance was associated with metabolic responses viz., triggered hydrolytic enzyme activities, hormonal cross-talk, ROS signaling and catalase under drought stress compared to drought sensitive IR64. Hence, these genotypes can be used as potential donor candidates towards genetic improvement of drought tolerance in rice.

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Leaf Traits and Antioxidant Defense for Drought Tolerance During Early Growth Stage in Some Popular Traditional Rice Landraces from Koraput, India

Cited by 72 publications

References 43 publications

Drought tolerance indices for selection of drought tolerant, high yielding upland rice genotypes

Drought tolerance indices for selection of drought tolerant, high yielding upland rice genotypes

Data on genetic potentiality of folk rice (Oryza sativa L.) genotypes from Koraput, India in reference to drought tolerance traits

Phytohormone cross-talk and antioxidant gadgets tussles osmotic stress in indigenous rice landraces during seed germination

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