2023
DOI: 10.3390/plants12040922
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Identification of Drought Tolerant Rice (Oryza Sativa L.) Genotypes with Asian and African Backgrounds

Abstract: Drought is among the major abiotic stresses on rice production that can cause yield losses of up to 100% under severe drought conditions. Neither of the rice varieties currently grown in Burundi can withstand very low and irregular precipitation. This study identified genotypes that have putative quantitative trait loci (QTLs) associated with drought tolerance and determined their performance in the field. Two hundred and fifteen genotypes were grown in the field under both drought and irrigated conditions. Ge… Show more

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Cited by 4 publications
(3 citation statements)
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References 41 publications
(69 reference statements)
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“…These correlations underscore the substantial role of these traits in fostering high yield under drought conditions and contribute to the clustering of sugarcane genotypes into similar groups as those pre-categorized. Consistent with our findings, results from various studies have also reported that high values of F v / F m , SPAD, and RWC, along with low leaf rolling and drying scores, were related to better yield or yield stability under drought stress [ 43 , 44 , 45 , 46 , 47 , 48 ]. Traits linked to drought tolerance, which exhibit direct correlations with cane yield, are typically employed to identify superior genotypes or cultivars [ 49 , 50 , 51 ].…”
Section: Discussionsupporting
confidence: 92%
“…These correlations underscore the substantial role of these traits in fostering high yield under drought conditions and contribute to the clustering of sugarcane genotypes into similar groups as those pre-categorized. Consistent with our findings, results from various studies have also reported that high values of F v / F m , SPAD, and RWC, along with low leaf rolling and drying scores, were related to better yield or yield stability under drought stress [ 43 , 44 , 45 , 46 , 47 , 48 ]. Traits linked to drought tolerance, which exhibit direct correlations with cane yield, are typically employed to identify superior genotypes or cultivars [ 49 , 50 , 51 ].…”
Section: Discussionsupporting
confidence: 92%
“…BLUP (Best linear unbiased prediction) analysis has the potential to enable a higher success rate in genotype selection since it has properties that allow predicting the genetic value of observed individuals, given that the genetic covariance between genotypes is proportional to their genotypic similarity (Meher et al 2022). BLUP analyses have been used in rice (Ndikuryayo et al 2023), maize (Yue et al 2022), and wheat (Casagrande et al 2020).…”
Section: Introductionmentioning
confidence: 99%
“…Many researches have shown that planting varieties with high drought tolerance potential had shown significant water-saving efficiency and increases yield [10,11]. Presently, the screening of drought-tolerant varieties mainly focus on agronomic and field crops, such as wheat [12][13][14], barley [14], maize [15], cotton [16], rice [17], millet [18], and potato [19]; however, there is no key report on the comprehensive evaluation and verification based on indicators that screen pakchoi drought-tolerant varieties for morphological, physiological, and biochemical indicator changes.…”
Section: Introductionmentioning
confidence: 99%