Water deficit-induced regulation of growth, gas exchange, chlorophyll fluorescence, inorganic nutrient accumulation and antioxidative defense mechanism in mungbean (Vigna radiata (L.)Wilczek)

Afzal, Aneela; Gulzar, Iqra; Shahbaz, Muhammad; Ashraf, Muhammad

doi:10.5073/jabfq.2014.087.022

Cited by 11 publications

(3 citation statements)

References 49 publications

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“…The W1 treatment reduced the average number of filled pods per plant by 31.2% compared to controls. Soybean produced the most filled pods per plant (27.5), with the remaining species producing similar numbers (8)(9)(10)(11)(12)(13)(14)(15). At the Aileu site, soybean also produced the most filled pods per plant (20.5), with the remaining species producing similar numbers (5.9-10) (P < 0.001).…”

Section: Growth Yield and Yield Componentsmentioning

confidence: 99%

“…The extent of the yield reduction depends on the duration and intensity of the stress and varies between species and cultivars and climatic variations, as reported for mungbean, soybean, and grass pea [6][7][8][9][10]. Reduced soil water content to a moderate drought level (60% field capacity) reduced pod and seed numbers and seed yield per plant in mungbean (line 97001) [11]. In canola, water deficit during anthesis and seed filling reduced pod number, seeds per pod, and harvest index more than pre-anthesis [12].…”

Section: Introductionmentioning

confidence: 99%

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Adaptation of Grain Legumes to Transient Water Deficit in Timor-Leste

Gusmão¹,

Sitorus²

2021

ujar

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In Timor-Leste, it is possible to use residual soil water after rice harvest to produce grain legumes, despite the lack of supplementary irrigation. This study aimed to identify the growth of potential grain legumes adapted to transient water deficit after rice harvest. The experiment was undertaken in 2012 at the Hera Field Research of the National University of Timor Lorosa'e, representing lowland areas, and farmland in Aileu, representing highland areas. The experiment used a completely randomized design with two factors (water treatment and species) and three replications. Both sites had a well-watered control and drought treatment applied at flowering for 15 days before re-watering to maturity at the Hera site or five days when rain interrupted the treatment at the Aileu site. Grain legumes were peanut, soybean, kidney bean, white bean, speckled bean, cowpea (black), cowpea red, mungbean, and grass pea. The measured parameters included soil water content, pH and temperature, crop phenology, plant growth, yield, and yield components. The results showed that the Hera site had significantly lower soil water content than the control; no soil water measurement occurred at Aileu site due to rain interruption. On average, grain legumes at the Hera site germinated, flowered, set pods, and reached physiological maturity earlier than at the Aileu site. The fastest flowering species was soybean (48 DAS) at the Hera site and (winding) white bean at the Aileu site (61 DAS). The first species to set pods were mungbean, soybean, and kidney bean (55 DAS) at the Hera site and white and speckled beans (73 DAS) at the Aileu site. Mungbean matured first at both sites. Drought significantly reduced seed yield by 32.9% and 19.1% at the Hera and Aileu sites, respectively. At the Hera site, cowpea red and mungbean produced the highest seed yields (2.6 t/ha), followed by kidney bean (2.3 t/ha), and soybean (2.0 t/ha). At the Aileu site, cowpea black produced the highest seed yield (1.6 t/ha), with the remaining species between 1.2 t/ha (mungbean) and 0.02 t/ha (grass pea). The experiment identified mungbean, soybean, cowpea red, and kidney bean as the best grain legume options for lowland areas after rice harvest; further study is required for the upland areas. Kidney bean was the novel finding, tested for the first time in lowland areas, which had vigorous growth and high seed yield.

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Section: Growth Yield and Yield Componentsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Adaptation of Grain Legumes to Transient Water Deficit in Timor-Leste

Gusmão¹,

Sitorus²

2021

ujar

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“…At the present investigation, water deficit caused a significance decrease in rows in ear, biomass of ear, kernels number, ear length and number of ears per plant in both the cultivars. It may be due to the reduction in production of photosynthates that led to the reduction in overall yield (Afzal et al, 2014). It gives a clear indication that drought tolerant genotype showed less reduction in yield in contrast to susceptible ones.…”

Section: Yield Attributesmentioning

confidence: 99%

Ameliorative role of potassium on water relations, antioxidative enzymes and yield of sweet corn genotypes under water deficit

Srinath

Singh

2022

J Agric Sciences

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Purpose:In recent years, it has been revealed that potassium delivers drought stress tolerance in many crops. This nutrient is not yet tested for sweetcorn. Therefore, this study investigated the impact of drought and soil applied potassium on water relations, antioxidant enzymes and yield attributes of two sweet corn genotypes in India.Research Method: The factorial experiment was set-up with 5 replications in complete randomized block design. Factor one comprised of two genotypes (Sugar-75 and NSC 901B), factor two had six different water treatments and factor three with two different potassium levels. This investigation was designed with two genotypes of sweet corn to study the interaction between various water deficit conditions and soil applied potassium.Findings: Drought stress significantly decreased the water potential, osmotic potentialand relative water content and caused osmotic stress in sweet corn plants. Antioxidant enzymes activities were found to be upregulated under drought stress while yield attributes were adversely affected by water deficit. Application of potassium increased the adaptation to water deficit stress by positively modulating the tested parameters. Results procured from this study suggested that exogenously applied potassium mitigated the drought mediated constrains on sweet corn and enhanced drought tolerance. Research Limitations:The experiments were carried out in polythene pots to provide a uniform soil condition which was the main limitation when compared to field trials.Originality/value: Results of this experiment revealed that exogenous application of potassium can alleviate the damaging effect of drought stress on sweet corn. However, more research on other crops is needed to ensure its long-term sustainability.

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Morphological modifications in soybean in response to soil water management

et al. 2017

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stomatal conductance, leaf area, leaf anatomy measures (width of palisade and spongy parenchyma, length of central vein, adaxial and abaxial width of central vein, length of vascular bundle, width of vascular bundle), and stem diameter. A higher tolerance was observed in BRS Valiosa RR to moderate hydric deficit conditions when they occurred in soybean stage V2. The BRS Valiosa RR cultivar presents a better morphologically and anatomically adaptive response to moderate hydric restrictions of up to (−0.07 MPa) when they occur in the first weeks of plant development.

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Water deficit-induced regulation of growth, gas exchange, chlorophyll fluorescence, inorganic nutrient accumulation and antioxidative defense mechanism in mungbean (Vigna radiata (L.)Wilczek)

Cited by 11 publications

References 49 publications

Adaptation of Grain Legumes to Transient Water Deficit in Timor-Leste

Adaptation of Grain Legumes to Transient Water Deficit in Timor-Leste

Ameliorative role of potassium on water relations, antioxidative enzymes and yield of sweet corn genotypes under water deficit

Morphological modifications in soybean in response to soil water management

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