Abstract
Drought-tolerance at the seedling stage affects seriously germination of seeds and survival of young plants.Using 25% polyethyleneglycol(PEG) solution,germinated seed number,chlorophyll content and seedling-stage peroxide(POD) activity of 8 maize hybrids varieties were tested.The results showed that drought-tolerance coefficients,caculated from germinated seed number,were siginificantly different among hybrids,and germination ability of flinty kernels were better than that of dented ones;that chlorophyll content of seedling leaves increased differently after selection for seed gemination in the PEG solution;and that leaf POD activities were different in check treatments and increased after osmosis stress treatments,but degrees of increase were different among the hybrid varieties.
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Claims 5
Claim · model-written summary
Drought tolerance coefficients based on germination differed significantly among hybrids.
Verbatim
t0“maize hybrids”
e0“drought-tolerance coefficients,caculated from germinated seed number,were siginificantly different among hybrids”
Claim · model-written summary
Flinty kernels germinated better than dented kernels.
Verbatim
t0“maize hybrids”
e0“germination ability of flinty kernels were better than that of dented ones”
Claim · model-written summary
Seedling leaf chlorophyll content increased to differing degrees after selection for germination in PEG.
- Taxon
- maize hybridst0
- Organ / stage
- seedling leavese0
- Treatment
- selection for seed gemination in the PEG solutione0
- Outcome
- chlorophyll contente0
- Direction
- increasede0
Not reportedComparator
Verbatim
t0“maize hybrids”
e0“chlorophyll content of seedling leaves increased differently after selection for seed gemination in the PEG solution”
Claim · model-written summary
Leaf POD activities differed among check treatments.
Verbatim
t0“maize hybrids”
e0“leaf POD activities were different in check treatments”
Claim · model-written summary
Osmosis stress increased leaf POD activities, with differing increases among hybrids.
Verbatim
t0“maize hybrids”
e0“leaf POD activities were different in check treatments and increased after osmosis stress treatments,but degrees of increase were different among the hybrid varieties”
The same questions in other papers
poly(ethylene glycol) · physiology: pigments · Zea mays (maize)Results differ
2 papers in the same direction as this paper · 2 in the opposite direction
- negative
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- positive
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