Abstract
The objective of this study was to assess changes in proline, Glycine Betaine (GB), photosynthetic pigment concentration, Membrane Stability Index (MSI), and grain yield of wheat cultivars induced by Supplemental Irrigation (SI) in the terminal growth stages. Two field experiments with four irrigation levels (rainfed, SI at booting stage, SI at booting and anthesis stages, SI at booting, anthesis, and grain filling stages) and five cultivars (Rejaw, Sardari, Homa, Azar2, and Sirwan) were conducted during the 2015-2017 growing seasons. Results indicated that, overall, SI increased cultivars' chlorophyll concentration, MSI, and grain yield. Proline and GB highly accumulated under drought stress, but rapidly decreased after SI; the severity of the decrease in proline concentration was more remarkable. Sardari and Azar2 cultivars exhibited greater MSI, proline, and GB accumulation during drought stress and more rapid recovery from drought. Our results suggest that the ability of the wheat cultivars to maintain functions during drought and recover after SI during the terminal growth stage is essential for determining final grain yield.
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Claims 5
Claim · model-written summary
Supplemental irrigation increased wheat chlorophyll concentration and membrane stability index.
- Taxon
- wheat
Triticum aestivumt0 - Treatment
- SIe0
- Outcome
- chlorophyll concentration, MSIe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SI increased cultivars' chlorophyll concentration, MSI, and grain yield”
t0“Physiological and Biochemical Responses in Five Wheat Cultivars to Supplemental Irrigation”
Claim · model-written summary
Supplemental irrigation increased wheat grain yield.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- SIe0
- Outcome
- grain yielde0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SI increased cultivars' chlorophyll concentration, MSI, and grain yield”
t0“Physiological and Biochemical Responses in Five Wheat Cultivars to Supplemental Irrigation”
Claim · model-written summary
Proline and glycine betaine accumulated under drought stress.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- drought stresse0
- Outcome
- Proline and GBe0
- Direction
- highly accumulatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Proline and GB highly accumulated under drought stress”
t0“Physiological and Biochemical Responses in Five Wheat Cultivars to Supplemental Irrigation”
Claim · model-written summary
Proline and glycine betaine rapidly decreased after supplemental irrigation, with a larger proline decline.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- SIe0
- Outcome
- Proline and GBe0
- Direction
- rapidly decreasede0
- Qualifier
- decrease in proline concentration was more remarkablee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Proline and GB highly accumulated under drought stress, but rapidly decreased after SI; the severity of the decrease in proline concentration was more remarkable”
t0“Physiological and Biochemical Responses in Five Wheat Cultivars to Supplemental Irrigation”
Claim · model-written summary
Sardari and Azar2 had greater MSI, proline and GB accumulation under drought and faster recovery.
- Taxon
- wheatTriticum aestivumt0
- Material
- Sardari and Azar2 cultivarse0
- Outcome
- MSI, proline, and GB accumulatione0
- Direction
- greatere0
- Qualifier
- during drought stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sardari and Azar2 cultivars exhibited greater MSI, proline, and GB accumulation during drought stress and more rapid recovery from drought”
t0“Physiological and Biochemical Responses in Five Wheat Cultivars to Supplemental Irrigation”
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