Abstract
Drought is a major natural disaster to China's maize production,breeding drought tolerant maize hybrids are effective measures to deal with the threat of drought.Twenty-nine maize landraces in green-house from Southwest China were evaluated for drought tolerance during their whole growth period.The results showed that the contributions of ASI 、fruiting plaint numbers、plant height、row grains and hundred-grain weight to drought tolerance of maize landrace were very significant by the multiple stepwise regression analysis,and these indexes may be used to identify drought tolerance of maize landraces.The drought tolerance coefficients of maize landraces numbered DP1 、DP14、DP16、DP26 which was graded by grain yield drought tolerance coefficients were all above 0.9 and were belong to the strong drought tolerant genotypes,and could be used as germplasm resources of breeding drought tolerant maize hybrids.
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Claims 4
Claim · model-written summary
ASI, fruiting plant number, height, row grains and grain weight contributed significantly to drought tolerance.
Not reportedDirection
Verbatim
e0“contributions of ASI 、fruiting plaint numbers、plant height、row grains and hundred-grain weight to drought tolerance of maize landrace were very significant by the multiple stepwise regression analysis”
Claim · model-written summary
The authors propose these indexes for identifying drought tolerance.
Verbatim
e0“these indexes may be used to identify drought tolerance of maize landraces”
Claim · model-written summary
DP1, DP14, DP16 and DP26 had drought tolerance coefficients above 0.9 and were classed strongly tolerant.
Verbatim
e0“drought tolerance coefficients of maize landraces numbered DP1 、DP14、DP16、DP26 which was graded by grain yield drought tolerance coefficients were all above 0.9 and were belong to the strong drought tolerant genotypes”
Claim · model-written summary
The authors propose the strongly tolerant landraces as breeding germplasm.
- Outcome
- germplasm resources of breeding drought tolerant maize hybridse0
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“could be used as germplasm resources of breeding drought tolerant maize hybrids”
t0“Maize Landraces”