Abstract
Temperature is one of the major factors controlling plant development, in particular seed germination. Alfalfa is a perennial pasture legume that holds an important place in cultivated grasslands. Breeding alfalfa cultivars adapted to new ranges of temperature could be necessary, requiring knowledge of the variability in response to temperature among different accessions. Six accessions of Medicago sativa subsp. sativa and one wild population of M. sativa subsp. falcata were evaluated for their germination temperature response. Seeds were tested for germination in the dark at eight constant temperatures, from 5 to 40°C. Significant differences ( P < 0.01) were found. The optimum temperature for germination ranged between 11.7 and 21.1°C, whereas two varieties, ‘Demnate’ and ‘Luzelle’ had a very wide range of temperatures favouring maximum germination. The findings of this study suggest that the germination of alfalfa was little affected by low temperature (5°C) whereas germination at 40°C was lower and showed high variability. Our results revealed variability in the response to temperature for germination of M. sativa that gives room for breeding new varieties adapted to future environmental conditions induced by the global climate change.
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Claims 7
Claim · model-written summary
Accessions differed significantly in germination temperature response.
- Taxon
- alfalfa
Medicago sativat0 - Outcome
- germinationt0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significant differences ( P < 0.01) were found”
t0“alfalfa (Medicago sativa) in response to temperature during germination”
Claim · model-written summary
Optimum germination temperature ranged from 11.7 to 21.1°C.
- Taxon
- alfalfaMedicago sativat0
- Outcome
- optimum temperature for germinatione0
- Value
- 11.7 and 21.1°Ce0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The optimum temperature for germination ranged between 11.7 and 21.1°C”
t0“alfalfa”
Claim · model-written summary
Demnate had a broad temperature range favoring maximum germination.
- Taxon
- alfalfaMedicago sativat0
- Material
- Demnatee0
- Outcome
- very wide range of temperatures favouring maximum germinatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“two varieties, ‘Demnate’ and ‘Luzelle’ had a very wide range of temperatures favouring maximum germination”
t0“alfalfa”
Claim · model-written summary
Luzelle had a broad temperature range favoring maximum germination.
- Taxon
- alfalfaMedicago sativat0
- Material
- Luzellee0
- Outcome
- very wide range of temperatures favouring maximum germinatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“two varieties, ‘Demnate’ and ‘Luzelle’ had a very wide range of temperatures favouring maximum germination”
t0“alfalfa”
Claim · model-written summary
Low temperature at 5°C had little effect on germination.
- Taxon
- alfalfaMedicago sativae0
- Treatment
- low temperature (5°C)e0
- Outcome
- germinatione0
- Direction
- little affectede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“germination of alfalfa was little affected by low temperature (5°C)”
Claim · model-written summary
Germination at 40°C was lower and highly variable.
- Taxon
- alfalfaMedicago sativat0
- Treatment
- 40°Ce0
- Outcome
- germinatione0
- Direction
- lowere0
- Qualifier
- high variabilitye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“germination at 40°C was lower and showed high variability”
t0“alfalfa”
Claim · model-written summary
The observed variability offers scope to breed temperature-adapted varieties.
- Taxon
- M. sativaMedicago sativae0
- Outcome
- breeding new varieties adapted to future environmental conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“variability in the response to temperature for germination of M. sativa that gives room for breeding new varieties adapted to future environmental conditions induced by the global climate change”
The same questions in other papers
cold · growth · Medicago sativa (alfalfa)Positive and negative results
4 papers in the same direction as this paper · 8 in the opposite direction
- positive
- positive
- positive
9 papers more in this group
See all 13 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.