Response of Short Duration Tropical Legumes and Maize to Water Stress: A Glasshouse Study

Sohrawardy, Hossain; Hossain, Md. Lokman

doi:10.1155/2014/641319

Cited by 3 publications

(8 citation statements)

References 32 publications

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“…However, when plant development was hampered to a larger level, wateruse efficiency was dramatically lowered [38]. Sohrawardy and Hossain [50] showed that cowpea (Vigna unguiculata) and lablab (Lablab purpureus) were found to have lower wateruse efficiency than common bean (Phaseolus vulgaris). With the increase of water regimes, the common bean demonstrated greater water-use efficiency, and stomatal conductance steadily increased [50].…”

Section: Water-use Efficiencymentioning

confidence: 99%

Drought Stress in Grain Legumes: Effects, Tolerance Mechanisms and Management

et al. 2021

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Grain legumes are important sources of proteins, essential micronutrients and vitamins and for human nutrition. Climate change, including drought, is a severe threat to grain legume production throughout the world. In this review, the morpho-physiological, physio-biochemical and molecular levels of drought stress in legumes are described. Moreover, different tolerance mechanisms, such as the morphological, physio-biochemical and molecular mechanisms of legumes, are also reviewed. Moreover, various management approaches for mitigating the drought stress effects in grain legumes are assessed. Reduced leaf area, shoot and root growth, chlorophyll content, stomatal conductance, CO2 influx, nutrient uptake and translocation, and water-use efficiency (WUE) ultimately affect legume yields. The yield loss of grain legumes varies from species to species, even variety to variety within a species, depending upon the severity of drought stress and several other factors, such as phenology, soil textures and agro-climatic conditions. Closure of stomata leads to an increase in leaf temperature by reducing the transpiration rate, and, so, the legume plant faces another stress under drought stress. The biosynthesis of reactive oxygen species (ROS) is the most detrimental effect of drought stress. Legumes can adapt to the drought stress by changing their morphology, physiology and molecular mechanism. Improved root system architecture (RSA), reduced number and size of leaves, stress-induced phytohormone, stomatal closure, antioxidant defense system, solute accumulation (e.g., proline) and altered gene expression play a crucial role in drought tolerance. Several agronomic, breeding both conventional and molecular, biotechnological approaches are used as management practices for developing a drought-tolerant legume without affecting crop yield. Exogenous application of plant-growth regulators (PGRs), osmoprotectants and inoculation by Rhizobacteria and arbuscular mycorrhizal fungi promotes drought tolerance in legumes. Genome-wide association studies (GWASs), genomic selection (GS), marker-assisted selection (MAS), OMICS-based technology and CRISPR/Cas9 make the breeding work easy and save time in the developmental cycle to get resistant legumes. Several drought-resistant grain legumes, such as the chickpea, faba bean, common bean and pigeon pea, were developed by different institutions. Drought-tolerant transgenic legumes, for example, chickpeas, are developed by introgressing desired genes through breeding and biotechnological approaches. Several quantitative trait loci (QTLs), candidate genes occupying drought-tolerant traits, are identified from a variety of grain legumes, but not all are under proper implementation. Hence, more research should be conducted to improve the drought-tolerant traits of grain legumes for avoiding losses during drought.

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Section: Water-use Efficiencymentioning

confidence: 99%

Drought Stress in Grain Legumes: Effects, Tolerance Mechanisms and Management

et al. 2021

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“…It requires a hot climate, takes benefit of fertilization (Omer et al, 1993) and irrigation (Alexander et al, 1988). Guar has a high salinity tolerance (Farencois et al, 1990;Ashraf et al, 2005) and a good capability to fix atmospheric nitrogen (Wetselaar, 1967;Elsheikh and Ibrahim, 1999;Sultan et al, 2012;Sohrawardy and Hossain, 2014). Seeds of guar contain galactomannans (guar gum, 25-35%) which is being used in wide range of industries such as textile, paint, cosmetics, detergents and food industry as well as stabilizer in ice cream and other frozen desserts (Farencois et al, 1990;Jukanti et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

“…Legume crops play an important role in the economy of arid and semiarid areas of the world as they are a major source of protein (Sohrawardy and Hossain, 2014). Legumes help improve soil fertility because of their inherent capability to fix atmospheric nitrogen (Sohrawardy and Hossain, 2014).…”

Section: Introductionmentioning

confidence: 99%

Screening of guar accessions [Cyamopsis tetragonoloba (L.) Taub.] for higher yield potential under irrigated conditions

Khalid¹,

Akhtar²,

Minhas³

et al. 2017

Afr. J. Agric. Res.

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Twelve quantitative traits such as germination percentage, days to 50% flowering, plant height, branches plant -1 , clusters plant -1 , pod length, days to maturity, 1000-seed weight and grain yield plot -1 were studied to determinate ample variation and association between 100 Guar [Cyamopsis tetragonoloba (L.) Taub , seeds pod -1 and pod length. However, branches plant -1 and days to maturity were significant but negatively correlated with grain yield plot -1 . Principal component analysis indicated the quantity of variation by principal components 1 to 4 viz., 38.9, 14.7, 10.6 and 8.3%, respectively. Cluster analysis based on different quantitative traits arranged 100 guar accessions into eight groups. Ward clustering method was used to construct dendrogram based on quantitative traits of genotypes. Genotypes having desirable plant traits like early maturity and higher yield potential were screened for guar variety development under irrigated conditions.

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“…Lotter et al (2014) observed that net photosynthetic rate decreases under water limited conditions that can affect nutrient allocation and biomass in a legume Aspalathus linearis. Legume crops play an important role in the economy of arid and semiarid areas of the world as they are the major source of protein (Sohrawardy and Hossain, 2014). Legumes help in improving soil fertility because of their inherent capability to fix atmospheric nitrogen (Sohrawardy and Hossain, 2014).…”

Section: Introductionmentioning

confidence: 99%

“…Legume crops play an important role in the economy of arid and semiarid areas of the world as they are the major source of protein (Sohrawardy and Hossain, 2014). Legumes help in improving soil fertility because of their inherent capability to fix atmospheric nitrogen (Sohrawardy and Hossain, 2014).…”

Section: Introductionmentioning

confidence: 99%

Expediency of water and soil nutrients in irrigated and extreme drought conditions

Zubair¹,

Akhtar²,

Minhas³

et al. 2017

Afr. J. Agric. Res.

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Climate change has become global issue for crops due to increase in temperature and less rainfall resulting in shortage of water and decrease in yield. The experiment consisted of five guar (Cyamopsis tetragonoloba L.) genotypes viz. S-5744, S-5824, S-5785, BR-90, BR-99 were cultivated under irrigated and drought stress (only soaking dose) conditions using Randomized Complete Block Design (RCBD) with 3 replications. The data for yield and its components were recorded at the time of maturity of guar genotypes. The two genotypes S-5744 and S-5824 showed better performance under both drought and irrigated conditions and gave maximum yield 900 and 1133.33 grams in drought and irrigated, respectively. All characters showed positive correlation with each other except number of cluster plant -1 . The soil analysis was done in order to check availability and utilization of nutrients in the presence of water (irrigated conditions) and water deficit conditions (drought). The above mentioned two genotypes were less affected by the water shortage compared to others and were comeback after rainfall in the months of July and August and have ability of better uptake of nutrients from the soil in drought and irrigated conditions. However, nutrient use was higher under irrigated conditions.

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Response of Short Duration Tropical Legumes and Maize to Water Stress: A Glasshouse Study

Cited by 3 publications

References 32 publications

Drought Stress in Grain Legumes: Effects, Tolerance Mechanisms and Management

Drought Stress in Grain Legumes: Effects, Tolerance Mechanisms and Management

Screening of guar accessions [Cyamopsis tetragonoloba (L.) Taub.] for higher yield potential under irrigated conditions

Expediency of water and soil nutrients in irrigated and extreme drought conditions

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