Abstract
In the changing climate scenario, drought could be continued as a major abiotic limitation for crop productivity. Finger millet although known for its drought tolerance, the drought stress decreases the grain yield from 25 to 100 percent depending on the duration and magnitude of drought stress. Present study was conducted to explore the genetic variability of selected genotypes over the ruling varieties if any, based on the extent of reduction in grain yield, and dependent photosynthetic traits due to moderate drought stress for 18 to 20 days (grand growth to flower primordial initiation). Five selected genotypes were compared with three released varieties under field condition by withholding the irrigation for stress treatment. Moderate drought stress for a period of 18 to 20 days decreased the photosynthetic rates markedly due to decreased stomatal conductance and transpiration rates. However, yield reduction was less than 6.0 per cent in released varieties. Correlations and path analysis proved that, the mean ear weight and productive tillers per hill are important in yield determination of finger millet under drought condition. Among the varieties, Cv. PR-202 found relatively drought tolerant and this variety can be used as check for screening germplasm accessions against the drought stress. It is concluded that, moderate drought stress for 18 to 20 days with pan evaporation of around 4 mm per day is not a serious limitation under rainfed situations during kharif seasons.
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Claims 7
Claim · model-written summary
Moderate drought for 18 to 20 days markedly decreased photosynthetic rates.
- Taxon
- Finger Millet
Eleusine coracanat0 - Treatment
- Moderate drought stress for a period of 18 to 20 dayse0
- Outcome
- photosynthetic ratese0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Finger Millet”
e0“Moderate drought stress for a period of 18 to 20 days decreased the photosynthetic rates markedly”
Claim · model-written summary
Moderate drought decreased stomatal conductance and transpiration rates.
- Taxon
- Finger MilletEleusine coracanat0
- Treatment
- Moderate drought stress for a period of 18 to 20 dayse0
- Outcome
- stomatal conductance and transpiration ratese0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Finger Millet”
e0“Moderate drought stress for a period of 18 to 20 days decreased the photosynthetic rates markedly due to decreased stomatal conductance and transpiration rates”
Claim · model-written summary
Yield reduction in released varieties was less than 6.0 per cent under moderate drought.
- Taxon
- Finger MilletEleusine coracanat0
- Material
- released varietiese0
- Treatment
- Moderate drought stresse1
- Outcome
- yielde0
- Direction
- reductione0
- Value
- less than 6.0 per cente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Finger Millet”
e0“However, yield reduction was less than 6.0 per cent in released varieties”
e1“Moderate drought stress for a period of 18 to 20 days decreased the photosynthetic rates markedly”
Claim · model-written summary
Mean ear weight and productive tillers per hill were important for finger millet yield under drought.
- Taxon
- finger milletEleusine coracanae0
- Organ / stage
- eare0
- Outcome
- yielde0
- Qualifier
- under drought conditione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the mean ear weight and productive tillers per hill are important in yield determination of finger millet under drought condition”
Claim · model-written summary
PR-202 was relatively drought tolerant among the varieties.
- Taxon
- Finger MilletEleusine coracanat0
- Material
- Cv. PR-202e0
- Outcome
- relatively drought tolerante0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Finger Millet”
e0“Among the varieties, Cv. PR-202 found relatively drought tolerant”
Claim · model-written summary
The authors recommend PR-202 as a check for screening germplasm for drought stress.
- Taxon
- Finger MilletEleusine coracanat0
- Outcome
- check for screening germplasm accessions against the drought stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Finger Millet”
e0“this variety can be used as check for screening germplasm accessions against the drought stress”
Claim · model-written summary
The authors conclude that 18 to 20 days of moderate drought at around 4 mm daily pan evaporation is not a serious rainfed kharif limitation.
- Taxon
- Finger MilletEleusine coracanat0
- Outcome
- not a serious limitatione0
- Qualifier
- under rainfed situations during kharif seasonse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Finger Millet”
e0“moderate drought stress for 18 to 20 days with pan evaporation of around 4 mm per day is not a serious limitation under rainfed situations during kharif seasons”
The same questions in other papers
drought · yield · Eleusine coracana (finger millet)Positive and negative results
11 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- no effect
9 papers more in this group
See all 13 papers →drought · physiology: photosynthesis · Eleusine coracana (finger millet)Results agree
2 papers in the same direction as this paper
- negative
- negative
drought · physiology: gas exchange · Eleusine coracana (finger millet)Results agree
2 papers in the same direction as this paper
- negative
- negative
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.