Abstract
Abstract As water for irrigation purposes becomes increasingly scarce because of climate change and population growth, there is growing interest in regulated deficit irrigation (RDI) as a way to improve efficiency of water usage and farm productivity in arid and semi‐arid areas. Salinity is also becoming an important problem in these same regions. Experiments were performed to investigate the effects of RDI and salt stress on two legumes crops, common bean ( Phaseolus vulgaris L.) and mungbean ( Vigna radiata (L.) Wilczek); previous work showed contrasting responses to RDI by these two crops under field conditions. The seed and biomass yields of both crops were reduced as a result of increasing water deficit stress; however, mungbean was able to maintain the same proportion of its biomass in reproductive structures and maintain its harvest index under stress, whereas common bean’s decreased. In addition, photosynthesis in mungbean was higher than in common bean and higher at the same levels of transpiration. Finally, salinity stress did not affect the water potential, harvest index or the specific leaf weight of either crop. There were no interactions between salinity and crops or RDI levels, which suggest that the two crops do not differ in their response to salinity stress, and that RDI levels do not modify this response.
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Claims 8
Claim · model-written summary
Increasing water deficit reduced seed and biomass yields of common bean.
- Taxon
- common bean
Phaseolus vulgarise0t0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The seed and biomass yields of both crops were reduced as a result of increasing water deficit stress”
t0“Common Bean”
Claim · model-written summary
Increasing water deficit reduced seed and biomass yields of mungbean.
- Taxon
- mungbean
.jpg?width=60)
Vigna radiatae0t0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“The seed and biomass yields of both crops were reduced as a result of increasing water deficit stress”
t0“Mungbean”
Claim · model-written summary
Mungbean maintained its reproductive biomass proportion and harvest index under stress.
- Taxon
- mungbeanVigna radiatae0
- Treatment
- stresse0
- Outcome
- proportion of its biomass in reproductive structures and maintain its harvest indexe0
- Direction
- maintaine0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“mungbean was able to maintain the same proportion of its biomass in reproductive structures and maintain its harvest index under stress”
Claim · model-written summary
Common bean reproductive biomass proportion and harvest index decreased under stress.
- Taxon
- common beanPhaseolus vulgarise0
- Outcome
- common bean’s decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“whereas common bean’s decreased”
Claim · model-written summary
Mungbean photosynthesis exceeded that of common bean, including at the same transpiration.
- Taxon
- mungbeanVigna radiatae0
- Outcome
- photosynthesise0
- Direction
- highere0
- Qualifier
- at the same levels of transpiratione0
- Comparator
- common beane0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“photosynthesis in mungbean was higher than in common bean and higher at the same levels of transpiration”
Claim · model-written summary
Salinity did not affect water potential, harvest index or specific leaf weight of common bean.
- Taxon
- common beanPhaseolus vulgarise0t0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“salinity stress did not affect the water potential, harvest index or the specific leaf weight of either crop”
t0“Common Bean”
Claim · model-written summary
Salinity did not affect water potential, harvest index or specific leaf weight of mungbean.
- Taxon
- mungbeanVigna radiatae0t0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“salinity stress did not affect the water potential, harvest index or the specific leaf weight of either crop”
t0“Mungbean”
Claim · model-written summary
No interaction between salinity and crop or deficit irrigation level was found.
- Taxon
- common beanPhaseolus vulgarise0t0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There were no interactions between salinity and crops or RDI levels”
t0“Common Bean”
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See all 13 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.