Abstract
The effects of salinity on germination, growth and yield parameters as well as phenotypic variance and heritability of five groundnut genotypes (Ex-Dakar, RRB 12, RMP 12, RMP 91 and Esan Local) were investigated. Saline treatments were imposed by irrigating the seeds and plants with varying concentrations of brackish water having electrical conductivities of 0.015, 1.50, 2.60, 4.68, 8.90 and 17.0 mS/cm. The results revealed that salinity significantly delayed germination and also reduced the final percentages at electrical conductivities greater than 2.60 mS/cm. Seedling emergence, radicle elongation, plant height and dry matter weight also tended to decrease with increasing salinity. Agronomic characters such as number of leaves/plant and number of branches/plant were significantly reduced with salinities higher than 2.60 mS/cm. The genotypes under study proved more salt tolerant during the germination than during the vegetative stage of growth and the result identified Esan- Local, Ex-Dakar and RRB 12 as being more salt tolerant than the other genotypes under study. Treated plants maintained high heritability and genetic advance values in characters such as 100 seed weight, pods/plant and seeds/pod, indicating that the characters under study were controlled by additive genes and could be improved by selection. Thus salt tolerant traits from the tolerant genotypes (Esan-Local, RRB 12 and Ex-Dakar) could be a source for developing salt tolerant variants in groundnut.
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Claims 10
Claim · model-written summary
Salinity delayed germination significantly.
- Taxon
- groundnut
Arachis hypogaeat0 - Treatment
- salinitye0
- Outcome
- germinatione0
- Direction
- delayede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“salinity significantly delayed germination”
t0“Effects of salinity on germination, growth and yield of five groundnut genotypes”
Claim · model-written summary
Salinity above 2.60 mS/cm reduced final germination percentage.
- Taxon
- groundnutArachis hypogaeat0
- Treatment
- electrical conductivities greater than 2.60 mS/cme0
- Outcome
- final percentagese0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“reduced the final percentages at electrical conductivities greater than 2.60 mS/cm”
t0“Effects of salinity on germination, growth and yield of five groundnut genotypes”
Claim · model-written summary
Seedling emergence, radicle elongation and plant height tended to decrease with salinity.
- Taxon
- groundnutArachis hypogaeat0
- Treatment
- increasing salinitye0
- Outcome
- Seedling emergence, radicle elongation, plant heighte0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seedling emergence, radicle elongation, plant height and dry matter weight also tended to decrease with increasing salinity”
t0“Effects of salinity on germination, growth and yield of five groundnut genotypes”
Claim · model-written summary
Dry matter weight tended to decrease with increasing salinity.
- Taxon
- groundnutArachis hypogaeat0
- Treatment
- increasing salinitye0
- Outcome
- dry matter weighte0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“dry matter weight also tended to decrease with increasing salinity”
t0“Effects of salinity on germination, growth and yield of five groundnut genotypes”
Claim · model-written summary
Leaves and branches per plant declined significantly above 2.60 mS/cm salinity.
- Taxon
- groundnutArachis hypogaeat0
- Treatment
- salinities higher than 2.60 mS/cme0
- Outcome
- number of leaves/plant and number of branches/plante0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“number of leaves/plant and number of branches/plant were significantly reduced with salinities higher than 2.60 mS/cm”
t0“Effects of salinity on germination, growth and yield of five groundnut genotypes”
Claim · model-written summary
The genotypes were more tolerant during germination than vegetative growth.
- Taxon
- groundnutArachis hypogaeat0
- Outcome
- salt tolerante0
- Direction
- moree0
- Comparator
- vegetative stage of growthe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“more salt tolerant during the germination than during the vegetative stage of growth”
t0“Effects of salinity on germination, growth and yield of five groundnut genotypes”
Claim · model-written summary
Esan- Local, Ex-Dakar and RRB 12 were more salt tolerant than other genotypes.
- Taxon
- groundnutArachis hypogaeat0
- Material
- Esan- Local, Ex-Dakar and RRB 12e0
- Outcome
- salt tolerante0
- Direction
- moree0
- Comparator
- the other genotypes under studye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Esan- Local, Ex-Dakar and RRB 12 as being more salt tolerant than the other genotypes under study”
t0“Effects of salinity on germination, growth and yield of five groundnut genotypes”
Claim · model-written summary
Treated plants had high heritability and genetic advance for 100-seed weight, pods per plant and seeds per pod.
- Taxon
- groundnutArachis hypogaeat0
- Treatment
- Treatede0
- Outcome
- heritability and genetic advance valuese0
- Direction
- highe0
- Qualifier
- 100 seed weight, pods/plant and seeds/pode0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treated plants maintained high heritability and genetic advance values in characters such as 100 seed weight, pods/plant and seeds/pod”
t0“Effects of salinity on germination, growth and yield of five groundnut genotypes”
Claim · model-written summary
The authors inferred additive genetic control of the measured characters.
- Taxon
- groundnutArachis hypogaeat0
- Outcome
- controlled by additive genese0
- Qualifier
- could be improved by selectione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“characters under study were controlled by additive genes and could be improved by selection”
t0“Effects of salinity on germination, growth and yield of five groundnut genotypes”
Claim · model-written summary
Tolerant genotypes were suggested as sources for salt tolerant groundnut variants.
- Taxon
- groundnutArachis hypogaeae0
- Material
- Esan-Local, RRB 12 and Ex-Dakare0
- Outcome
- a source for developing salt tolerant variantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“salt tolerant traits from the tolerant genotypes (Esan-Local, RRB 12 and Ex-Dakar) could be a source for developing salt tolerant variants in groundnut”
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