Abstract
Mungbean is one of the most powerful pulses providing substantial protein for human diets and fixing N to the soil, improving nutritional food security and agricultural sustainability. The production of summer mungbean in the tropics and subtropics is adversely affected by drought due to water scarcity caused by various factors as well as lack of rainfall. Irrigation at different growth phases is not a suitable solution. An environmentally friendly and economically viable answer is a convenient irrigation management option that will be available to farmers together with drought-tolerant genotypes. The study considered to determine the effect of differences between drought-tolerant and drought susceptible genotypes on water productivity response and physiological traits in mung beans. To quantify seed yield-related to irrigation at different growth stages eventually to quickly determine the most appropriate irrigation stage. One water stress tolerant mung bean genotype (BMX-08010-2) and one sensitive genotype (BARI Mung-1) were grown in the field with four different irrigation schedules along with water stress conditions (no irrigation) under rain shelter at Regional Agricultural Research Station, BARI, Ishwardi, Pabna, Bangladesh. The experiment was laid out in split plots with three replications, with irrigation schedules assigned in the main plot and mung bean genotypes assigned in the side plots. Water use efficiency ranged from 3.79 to 4.68 kg ha−1 mm−1 depending on irrigation regime, and mung bean seed yield of mung bean Water stress decreased plant water status, photosynthetic pigment and membrane stability index, and increased proline soluble sugar content. Treatments that received irrigation during two or three phases (I3 or I4) gave significantly higher yields than those that received irrigation during only one stage (I1 and I2) with the lowest yield. While the yield obtained ranged between 1145.44 kg ha−1 with seasonal irrigation of 277 mm (I4) and 555.14 kg ha−1 without irrigation (I0). The flowering stage (I3) was recorded as the most sensitive growth stage with an 18.15% yield reduction compared to the treatment with triple irrigation (I4). Also, depending on the irrigation sources, at least two irrigation phases should be provided at the triple leaf stage (I2, i.e., 20 DAS) and at the flowering stage (I3, i.e., 35 DAS) to achieve the highest yield. Genotypes that maintained the higher performance of physicochemical traits under water stress provided higher seed yield and promoted drought tolerance. Therefore, these parameters can be used as physiological and biochemical markers to identify and develop superior genotypes suitable for drought-prone environments.
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Claims 10
Claim · model-written summary
Mung bean water use efficiency ranged from 3.79 to 4.68 kg ha−1 mm−1 across irrigation regimes.
- Taxon
- Mung Bean
.jpg?width=60)
Vigna radiatat0 - Treatment
- irrigation regimee0
- Outcome
- Water use efficiencye0
- Value
- 3.79 to 4.68 kg ha−1 mm−1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Water use efficiency ranged from 3.79 to 4.68 kg ha−1 mm−1 depending on irrigation regime”
t0“Mung Bean”
Claim · model-written summary
Water stress decreased mung bean plant water status, photosynthetic pigment and membrane stability index.
- Taxon
- Mung BeanVigna radiatat0
- Treatment
- Water stresse0
- Outcome
- plant water status, photosynthetic pigment and membrane stability indexe0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water stress decreased plant water status, photosynthetic pigment and membrane stability index”
t0“Mung Bean”
Claim · model-written summary
Water stress increased mung bean proline and soluble sugar content.
- Taxon
- Mung BeanVigna radiatat0
- Treatment
- Water stresse0
- Outcome
- proline soluble sugar contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water stress decreased plant water status, photosynthetic pigment and membrane stability index, and increased proline soluble sugar content”
t0“Mung Bean”
Claim · model-written summary
Two or three irrigation phases yielded significantly more than one phase.
- Taxon
- Mung BeanVigna radiatat0
- Treatment
- irrigation during two or three phasese0
- Outcome
- yieldse0
- Direction
- highere0
- Comparator
- irrigation during only one stagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treatments that received irrigation during two or three phases (I3 or I4) gave significantly higher yields than those that received irrigation during only one stage (I1 and I2) with the lowest yield”
t0“Mung Bean”
Claim · model-written summary
Seasonal irrigation of 277 mm produced a mung bean yield of 1145.44 kg ha−1.
- Taxon
- Mung BeanVigna radiatat0
- Treatment
- seasonal irrigation of 277 mme0
- Outcome
- yielde0
- Value
- 1145.44 kg ha−1e0
- Comparator
- without irrigatione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“yield obtained ranged between 1145.44 kg ha−1 with seasonal irrigation of 277 mm (I4) and 555.14 kg ha−1 without irrigation (I0)”
t0“Mung Bean”
Claim · model-written summary
Without irrigation, mung bean yield was 555.14 kg ha−1.
- Taxon
- Mung BeanVigna radiatat0
- Treatment
- without irrigatione0
- Outcome
- irrigatione0
- Value
- 555.14 kg ha−1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“555.14 kg ha−1 without irrigation (I0)”
t0“Mung Bean”
Claim · model-written summary
Irrigation at flowering was associated with an 18.15% yield reduction versus triple irrigation.
- Taxon
- Mung BeanVigna radiatat0
- Treatment
- flowering stage (I3)e0
- Outcome
- yield reductione0
- Direction
- reductione0
- Value
- 18.15%e0
- Comparator
- triple irrigation (I4)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The flowering stage (I3) was recorded as the most sensitive growth stage with an 18.15% yield reduction compared to the treatment with triple irrigation (I4)”
t0“Mung Bean”
Claim · model-written summary
Genotypes maintaining higher physicochemical performance under water stress had higher seed yield and drought tolerance.
- Taxon
- Mung BeanVigna radiatat0
- Material
- Genotypese0
- Outcome
- higher seed yield and promoted drought tolerancee0
- Direction
- highere0
- Qualifier
- under water stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Genotypes that maintained the higher performance of physicochemical traits under water stress provided higher seed yield and promoted drought tolerance”
t0“Mung Bean”
Claim · model-written summary
The authors recommend at least two irrigations, at triple leaf and flowering stages, for highest yield.
- Taxon
- Mung BeanVigna radiatat0
- Treatment
- at least two irrigation phasese0
- Outcome
- highest yielde0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“at least two irrigation phases should be provided at the triple leaf stage (I2, i.e., 20 DAS) and at the flowering stage (I3, i.e., 35 DAS) to achieve the highest yield”
t0“Mung Bean”
Claim · model-written summary
The authors propose physicochemical traits as markers for drought-tolerant mung bean genotype development.
- Taxon
- Mung BeanVigna radiatat0
- Outcome
- physiological and biochemical markerse0
- Qualifier
- drought-prone environmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“these parameters can be used as physiological and biochemical markers to identify and develop superior genotypes suitable for drought-prone environments”
t0“Mung Bean”
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