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Showing 1 to 20 of 78 for “"water-deficit"”.
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Effect of Water-deficit Stress on Cotton During Reproductive Development
<p>Water deficit is a major abiotic factor limiting plant growth and crop productivity around the world. Cotton (Gossypium hirsutum L.) is considered to be relatively tolerant to drought and the effects of water stress on leaf physiology and metabolism have been extensively documented. However, …
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Physiological Responses of Cotton Genotypes to Water-Deficit Stress during Reproductive Development
… and flowers of modern cotton cultivars under water-deficit stress during reproductive development is not well elucidated. It was hypothesized that water-deficit stress during squaring and flowering stages would impair stomatal conductance and photosynthetic efficiency of leaves, which …
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Molecular and physiological study of water-deficit stress on selected Eragrostis species
… sensitive. The responses of these plants to water-deficit stress were studied using molecular and physiological approaches. A cDNA library of E. nindensis was screened to identify differentially expressed genes during dehydration. Physiological studies included monitoring changes in …
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High throughput profiling of transcription factors involved in soybean root growth under water deficit
… that the soybean primary root adapts to low water potential (-1.6 MPa) by maintaining longitudinal expansion in the apical 4 mm (region 1), whereas in the adjacent 4 mm (region 2), longitudinal expansion reaches a maximum in well-watered roots but is progressively inhibited at low water …
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Function of abscisic acid in maintenance of maize primary root growth under water deficit
… to maintain maize primary root elongation under water deficit and that one of the functions of ABA is to restrict ethylene evolution. These studies were conducted by using carotenoid deficient seedlings to induce ABA deficiency. Using the recently available ABA-deficient mutant vp14, it was …
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Proteolytic Enzyme Activities in Corn (Zea Mays L.) Leaves During Water Deficit and Senescence
Made available in DSpace on 2015-05-14T15:10:00Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 7821052.PDF: 2358161 bytes, checksum: 6ee849b59ce2d5a2573a465d6b27d065 (MD5) Previous issue date: 1978
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Abscisic acid : interactions with auxin in the regulation of root growth under water deficit conditions
Water stress has been shown to inhibit shoot growth more than root growth (Sharp et al., 1988). Abscisic acid (ABA) has been shown to be involved in this differential growth response in maize (Zea mays L.) seedlings (Saab et al., 1990; Sharp et al., 1994). ABA accumulates in the elongation zone of …
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Physiological and Metabolic Responses to Water-deficit and Heat Stress of Virginia-type Peanut Cultivars and Breeding Lines
… peanut develops in response to heat and water stress, the present study evaluated several physiological and metabolic characteristics and their relationship with yield for eight cultivars and breeding lines. Experiments were conducted under rainfed and irrigated field trials in 2011 and …
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Free amino acid composition of flatpea (lathyrus sylvestris L.) as influenced by water-deficit stress, nitrogen fertilization, developmental stage, and rhizobium inoculation
… observed in flatpea plants fed with ammonium. Water-deficit stress also elevated A₂bu content of flatpea. The elevation of A₂bu concentration in aerial tissues of flatpea under stress may not be high enough to decrease the value of flatpea as a forage. 4-Aminobutyric acid (Abu), homoserine …
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XvGoIS, a galactinol synthase is transcriptionally upregulated under water deficit : the role of raffinosaccharides in abiotic stress tolerance in the resurrection plant Xerophyta viscosa (Baker)
… (Baker) that are differentially expressed during water deficit. A cDNA was isolated from a library constructed from the leaves of water stressed X viscosa plants, which showed high identity to galactinol synthase (GoIS) enzymes from a variety of plant species. GolS is fundamental to the …
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Hyperspectral and Thermal Remote Sensing of Plant Stress Reponses to Oil Pollution.
… and two typically encountered plant stresses of waterlogging and water deficit. Results show that oil pollution, waterlogging and water deficit significantly decreased the physiological functions of plants and can result in pre-visual changes in spectral and thermal responses. Various spectral …
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Genomics-enabled breeding for sorghum in West Africa
… with yield components under pre-flowering water deficit. Evidence of local adaptation in genomic regions linked to flowering time in sub-humid zones and balancing selection grain pigmentation were found. Phenotyping of the WA sorghum association panel (WASAP) was conducted under …
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The Role of water demand management in integrated water resource management : constraints and opportunities in Southern Namibia
… and has been projected to reach an overall water deficit by 2020. Southern Namibia is especially arid, and appropriate and holistic management of water resources is thus becoming increasingly essential
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Characterization of Coleus x hybridus Voss. 'Goldbound' water requirements
Plant water deficit is the major factor limiting global crop productivity. Yield loss caused by water stress is estimated to exceed total loss from all other causes. Moreover, availability of agricultural water is declining worldwide because of increasing demand and decreasing quality. …
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Population-Level Differences in Pinus monophylla Whole-Plant Seedling Strategies Under Varying Precipitation Pulses
… climatic gradients, most notably climatic water deficit and amount of summer precipitation. Climatic water deficit varies considerably across P. monophylla's range, increasing from north to south and decreasing with increased elevation. Along a gradient of precipitation seasonality, …
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NAC transcription factors in sugarcane and their functional role in drought tolerance
… biomass productivity but marked sensitivity to water deficit. It is cultivated in many countries, including South Africa, where drought severity and frequency are expected to increase in the coming decades. This underscores the need for genetic engineering strategies to enhance drought tolerance …
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Assessment of surface water availability in Solwezi River Basin, NothWestern Province, Zambia
This study assessed surface water availability in Solwezi River basin in Northwestern Province of Zambia. The main objective was to quantify various components of the water balance to ascertain surface water availability in Solwezi River Basin in view of the increasing water demand. Climate data …
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Assessment of surface water availability in Solwezi River Basin, NothWestern Province, Zambia
This study assessed surface water availability in Solwezi River basin in Northwestern Province of Zambia. The main objective was to quantify various components of the water balance to ascertain surface water availability in Solwezi River Basin in view of the increasing water demand. Climate data …
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