Abstract
The chilling tolerance of 14 maize hybrids at germination and seedling growth stage were identified under room temperature and low temperature stress conditions. The relative values of each trait including germination rate, mean germination time, the height of shoot, the length of root, dry weight of shoot and root were used as indexes to assess chilling tolerance. The results show that the dry weight of root of maize hybrids with chilling tolerance didn't decrease. Maize hybrids were clustered into three groups: chilling tolerance, intermediate chilling tolerance and chilling sensitivity. The chilling tolerance varieties included Zhengdan 958, Jiyuan 1 and Jundan 20, while Jinbei 288 and Gaoyou 1 belonged to chilling sensitivity varieties and the rest were ascribed to intermediate chilling tolerance varieties. The correlation analyses show that the relative values of shoot height, dry weight of shoot and root were suitable parameters for evaluating chilling tolerance.
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Claims 6
Claim · model-written summary
Root dry weight of chilling-tolerant maize hybrids did not decrease.
- Material
- maize hybrids with chilling tolerancee0
- Outcome
- dry weight of roote0
- Direction
- didn't decreasee0
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results show that the dry weight of root of maize hybrids with chilling tolerance didn't decrease”
Claim · model-written summary
The hybrids formed chilling-tolerant, intermediate and chilling-sensitive groups.
- Outcome
- three groups: chilling tolerance, intermediate chilling tolerance and chilling sensitivitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Maize hybrids were clustered into three groups: chilling tolerance, intermediate chilling tolerance and chilling sensitivity”
Claim · model-written summary
Zhengdan 958, Jiyuan 1 and Jundan 20 were classified as chilling tolerant.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The chilling tolerance varieties included Zhengdan 958, Jiyuan 1 and Jundan 20”
t0“Maize Hybrids”
Claim · model-written summary
Jinbei 288 and Gaoyou 1 were classified as chilling sensitive.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Jinbei 288 and Gaoyou 1 belonged to chilling sensitivity varieties”
t0“Maize Hybrids”
Claim · model-written summary
The remaining hybrids were classified as intermediate in chilling tolerance.
- Outcome
- intermediate chilling tolerancee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the rest were ascribed to intermediate chilling tolerance varieties”
t0“Maize Hybrids”
Claim · model-written summary
Relative shoot height and shoot and root dry weight were suitable for evaluating chilling tolerance.
- Outcome
- suitable parameters for evaluating chilling tolerancee0
- Value
- relative values of shoot height, dry weight of shoot and roote0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The correlation analyses show that the relative values of shoot height, dry weight of shoot and root were suitable parameters for evaluating chilling tolerance”
t0“Maize Hybrids”