Water Logging Tolerance in Inbred Lines of Maize (Zea mays L.)

Tripathi, Shailesh; Warsi, M. Z. K.; Verma, S. S.

doi:10.1007/bf03543271

Cited by 9 publications

(2 citation statements)

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“…Several strategies are proposed to alleviate the damage of waterlogging including drainage construction, proper planting schedule, and the adoption of waterlogging-tolerance cultivars (Liu et al, 2020b;Yan et al, 2022). The latter option is promising and can be achieved by hybrid breeding maize for waterlogging tolerance (Zaidi et al, 2004;Bailey-Serres et al, 2012) because of the presence of genetic stock (Tripathi et al, 2003) and considerable genotypic variation (Mano et al, 2002) for this trait. Waterlogging tolerance is a complex trait attributed to several factors including genotype and environment (Li et al, 2011;Prasanna and Ramarao, 2014).…”

Section: Introductionmentioning

confidence: 99%

Genotype by Environment Interaction on Tropical Maize Hybrids Under Normal Irrigation and Waterlogging Conditions

Azrai

Efendi

Muliadi

et al. 2022

Front. Sustain. Food Syst.

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Unpredictable rainfall in the tropics often increases the risk of waterlogging or even flooding in agricultural lands, hindering the efforts to fulfill maize demands. Breeding maize for waterlogging tolerance is necessary yet challenging since performing varietal testing on a set of hybrids might be biased toward the presence of genotype and environment interaction (GEI). This study aimed to elucidate the GEI effects on yield and related agronomic traits of tropical maize hybrids under normal irrigation and waterlogging conditions and to assess the adaptability of these hybrids in such conditions using several stability models. Ten hybrids including two commercial checks were evaluated across 14 environments under normal and waterlogging conditions in Indonesia from 2018 to 2020. Waterlogging imposed at the V6 stage for ten consecutive days significantly hampered the plant height and ear height, slightly delayed flowering dates, and reduced yield and yield components. The genotype, location, and genotype by location effects were significant on yield, but the genotype by waterlogging effect was not. Stress tolerance index is highly significantly correlated (p < 0.01) with yield in both normal (r = 0.90) and waterlogging (r = 0.96) conditions. The GGE biplot analysis on yield revealed five sectors, two mega-environments, and five vertex genotypes. This study indicated the possibility of breeding maize hybrids tolerant to waterlogging (G05), as well as high-yielding hybrids under both conditions (G07).

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Section: Introductionmentioning

confidence: 99%

Genotype by Environment Interaction on Tropical Maize Hybrids Under Normal Irrigation and Waterlogging Conditions

Azrai

Efendi

Muliadi

et al. 2022

Front. Sustain. Food Syst.

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“…Our study also witnessed early senescence probably due to the reduction in lamellar content of light harvest chlorophyll proteins under water-limited situations (Anjum et al, 2011;Verma et al, 2004). The observed significant reduction in mean GY under waterlogging conditions with a poor performance of other secondary traits is probably due to the reduced leaf growth, and a worse effect on the cell turgor could be attributed to the decline in the carotenoid content (El-Shihaby et al, 2002;Tripathi et al, 2003).…”

Section: Discussionmentioning

confidence: 57%

Genetic gains in tropical maize hybrids across moisture regimes with multi-trait-based index selection

et al. 2023

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Unpredictable weather vagaries in the Asian tropics often increase the risk of a series of abiotic stresses in maize-growing areas, hindering the efforts to reach the projected demands. Breeding climate-resilient maize hybrids with a cross-tolerance to drought and waterlogging is necessary yet challenging because of the presence of genotype-by-environment interaction (GEI) and the lack of an efficient multi-trait-based selection technique. The present study aimed at estimating the variance components, genetic parameters, inter-trait relations, and expected selection gains (SGs) across the soil moisture regimes through genotype selection obtained based on the novel multi-trait genotype–ideotype distance index (MGIDI) for a set of 75 tropical pre-released maize hybrids. Twelve traits including grain yield and other secondary characteristics for experimental maize hybrids were studied at two locations. Positive and negative SGs were estimated across moisture regimes, including drought, waterlogging, and optimal moisture conditions. Hybrid, moisture condition, and hybrid-by-moisture condition interaction effects were significant (p ≤ 0.001) for most of the traits studied. Eleven genotypes were selected in each moisture condition through MGIDI by assuming 15% selection intensity where two hybrids, viz., ZH161289 and ZH161303, were found to be common across all the moisture regimes, indicating their moisture stress resilience, a unique potential for broader adaptation in rainfed stress-vulnerable ecologies. The selected hybrids showed desired genetic gains such as positive gains for grain yield (almost 11% in optimal and drought; 22% in waterlogging) and negative gains in flowering traits. The view on strengths and weaknesses as depicted by the MGIDI assists the breeders to develop maize hybrids with desired traits, such as grain yield and other yield contributors under specific stress conditions. The MGIDI would be a robust and easy-to-handle multi-trait selection process under various test environments with minimal multicollinearity issues. It was found to be a powerful tool in developing better selection strategies and optimizing the breeding scheme, thus contributing to the development of climate-resilient maize hybrids.

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Phenotyping for Problem Soils

Rajendran

Patil

Kumar

2015

Phenomics in Crop Plants: Trends, Options and Limitations

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Problem soils have serious physical and chemical constraints, impose stress on crops under cultivation and reduce its yield and productivity. Research efforts towards the development of tolerant cultivars for problem soils have gained all the advances from research areas of genomics but precision phenotyping still remains challenging. This chapter illustrates different phenotyping methods which have been used to screen genotypes against various problem soil conditions, discusses bottlenecks in the classical methods of phenotyping and exemplifies the application of high-throughput (HT) phenotyping in the current field of interest through red, green, blue (RGB) imaging, infrared thermography, chlorophyll fluorescence and hyperspectral imaging technologies. The HT phenotyping is a useful technique, and when it is empowered with other tools such as high-density linkage mapping and association mapping, it can accelerate the breeding process.

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Water Logging Tolerance in Inbred Lines of Maize (Zea mays L.)

Cited by 9 publications

References 1 publication

Genotype by Environment Interaction on Tropical Maize Hybrids Under Normal Irrigation and Waterlogging Conditions

Genotype by Environment Interaction on Tropical Maize Hybrids Under Normal Irrigation and Waterlogging Conditions

Genetic gains in tropical maize hybrids across moisture regimes with multi-trait-based index selection

Phenotyping for Problem Soils

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