Abstract
An experiment on hundred wheat genotypes under different levels of osmotic stress was carried out during 2014 to select the genotype(s) tolerant to drought at germination and early seedling stage. Different levels of osmotic stress were imposed by using polyethylene glycol (PEG). Three osmotic stress levels viz. control (distilled water), 15% PEG solution and 25% PEG solution were used. Among the 100 genotypes the rate of germination percentage, final germination (%), root and shoot dry weight, amount of respiration and vigour index under PEG treatment was found significantly lower than that of control condition. Compared to control condition relative decrease in rate of germination, final germination, amount of respiration and vigour index among the wheat genotypes were found more at 25% PEG than that of 15% PEG treatment. However, the seed metabolic efficiency was significantly higher in wheat genotypes under both 15% PEG and 25% PEG treatment compared to the control condition. A significant positive correlation exists between the important growth parameters like rate of germination (%), final germination (%), shoot dry weight, root dry weight and vigour index. On the basis of these physiological traits against osmotic stress, nine genotypes of wheat such as BD-480, BD-498, BD- 501, BD-513, BD-514, BD-519, BD-592, BD-618 and BD- 633 were selected as drought tolerant.SAARC J. Agri., 15(2): 177-192 (2017)
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Claims 15
Claim · model-written summary
PEG significantly lowered rate of germination percentage in wheat.
- Taxon
- wheat
Triticum aestivumt0 - Treatment
- PEG treatmente0
- Outcome
- rate of germination percentagee0
- Direction
- lowere0
- Comparator
- control conditione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Among the 100 genotypes the rate of germination percentage, final germination (%), root and shoot dry weight, amount of respiration and vigour index under PEG treatment was found significantly lower than that of control condition.”
t0“wheat”
Claim · model-written summary
PEG significantly lowered final germination (%) in wheat.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- PEG treatmente0
- Outcome
- final germination (%)e0
- Direction
- lowere0
- Comparator
- control conditione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Among the 100 genotypes the rate of germination percentage, final germination (%), root and shoot dry weight, amount of respiration and vigour index under PEG treatment was found significantly lower than that of control condition.”
t0“wheat”
Claim · model-written summary
PEG significantly lowered root and shoot dry weight in wheat.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- PEG treatmente0
- Outcome
- root and shoot dry weighte0
- Direction
- lowere0
- Comparator
- control conditione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Among the 100 genotypes the rate of germination percentage, final germination (%), root and shoot dry weight, amount of respiration and vigour index under PEG treatment was found significantly lower than that of control condition.”
t0“wheat”
Claim · model-written summary
PEG significantly lowered amount of respiration in wheat.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- PEG treatmente0
- Outcome
- amount of respiratione0
- Direction
- lowere0
- Comparator
- control conditione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Among the 100 genotypes the rate of germination percentage, final germination (%), root and shoot dry weight, amount of respiration and vigour index under PEG treatment was found significantly lower than that of control condition.”
t0“wheat”
Claim · model-written summary
PEG significantly lowered vigour index in wheat.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- PEG treatmente0
- Outcome
- vigour indexe0
- Direction
- lowere0
- Comparator
- control conditione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Among the 100 genotypes the rate of germination percentage, final germination (%), root and shoot dry weight, amount of respiration and vigour index under PEG treatment was found significantly lower than that of control condition.”
t0“wheat”
Claim · model-written summary
The decrease in rate of germination was greater at 25% PEG than 15% PEG.
- Taxon
- wheatTriticum aestivume0
- Treatment
- 25% PEGe0
- Outcome
- rate of germinatione0
- Direction
- decreasee0
- Comparator
- 15% PEG treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared to control condition relative decrease in rate of germination, final germination, amount of respiration and vigour index among the wheat genotypes were found more at 25% PEG than that of 15% PEG treatment.”
Claim · model-written summary
The decrease in final germination was greater at 25% PEG than 15% PEG.
- Taxon
- wheatTriticum aestivume0
- Treatment
- 25% PEGe0
- Outcome
- final germinatione0
- Direction
- decreasee0
- Comparator
- 15% PEG treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared to control condition relative decrease in rate of germination, final germination, amount of respiration and vigour index among the wheat genotypes were found more at 25% PEG than that of 15% PEG treatment.”
Claim · model-written summary
The decrease in amount of respiration was greater at 25% PEG than 15% PEG.
- Taxon
- wheatTriticum aestivume0
- Treatment
- 25% PEGe0
- Outcome
- amount of respiratione0
- Direction
- decreasee0
- Comparator
- 15% PEG treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared to control condition relative decrease in rate of germination, final germination, amount of respiration and vigour index among the wheat genotypes were found more at 25% PEG than that of 15% PEG treatment.”
Claim · model-written summary
The decrease in vigour index was greater at 25% PEG than 15% PEG.
- Taxon
- wheatTriticum aestivume0
- Treatment
- 25% PEGe0
- Outcome
- vigour indexe0
- Direction
- decreasee0
- Comparator
- 15% PEG treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared to control condition relative decrease in rate of germination, final germination, amount of respiration and vigour index among the wheat genotypes were found more at 25% PEG than that of 15% PEG treatment.”
Claim · model-written summary
Seed metabolic efficiency was significantly higher at 15% PEG than control.
- Taxon
- wheatTriticum aestivume0
- Treatment
- 15% PEGe0
- Outcome
- seed metabolic efficiencye0
- Direction
- highere0
- Comparator
- control conditione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the seed metabolic efficiency was significantly higher in wheat genotypes under both 15% PEG and 25% PEG treatment compared to the control condition.”
Claim · model-written summary
Seed metabolic efficiency was significantly higher at 25% PEG than control.
- Taxon
- wheatTriticum aestivume0
- Treatment
- 25% PEG treatmente0
- Outcome
- seed metabolic efficiencye0
- Direction
- highere0
- Comparator
- control conditione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the seed metabolic efficiency was significantly higher in wheat genotypes under both 15% PEG and 25% PEG treatment compared to the control condition.”
Claim · model-written summary
Germination, shoot and root dry weight, and vigour index correlated positively.
- Taxon
- wheatTriticum aestivumt0
- Organ / stage
- roote0
- Outcome
- rate of germination (%), final germination (%), shoot dry weighte0
- Direction
- positive correlatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A significant positive correlation exists between the important growth parameters like rate of germination (%), final germination (%), shoot dry weight, root dry weight and vigour index.”
t0“wheat”
Claim · model-written summary
BD-480, BD-498, BD- 501 were selected as drought tolerant.
- Taxon
- wheatTriticum aestivume0
- Material
- BD-480, BD-498, BD- 501e0
- Outcome
- drought tolerante0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nine genotypes of wheat such as BD-480, BD-498, BD- 501, BD-513, BD-514, BD-519, BD-592, BD-618 and BD- 633 were selected as drought tolerant.”
Claim · model-written summary
BD-513, BD-514, BD-519 were selected as drought tolerant.
- Taxon
- wheatTriticum aestivume0
- Material
- BD-513, BD-514, BD-519e0
- Outcome
- drought tolerante0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nine genotypes of wheat such as BD-480, BD-498, BD- 501, BD-513, BD-514, BD-519, BD-592, BD-618 and BD- 633 were selected as drought tolerant.”
Claim · model-written summary
BD-592, BD-618 and BD- 633 were selected as drought tolerant.
- Taxon
- wheatTriticum aestivume0
- Material
- BD-592, BD-618 and BD- 633e0
- Outcome
- drought tolerante0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nine genotypes of wheat such as BD-480, BD-498, BD- 501, BD-513, BD-514, BD-519, BD-592, BD-618 and BD- 633 were selected as drought tolerant.”
The same questions in other papers
poly(ethylene glycol) · growth · Triticum aestivum (wheat)Positive and negative results
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