Abstract
Dehydration is the most important limiting factor in agricultural production in arid and semi-arid regions, and water shortages (especially at the reproductive stages) due to lack of precipitation and unequal distribution are inappropriate for limiting the yield. In this research, cross between the Gasspard cultivar (dehydrated susceptible parent) and DN11 line (resistant parent) was performed. F 1 , F 2 , F 3 , BC 1 and BC 2 generations along with parents, were planted in a randomized complete blocks design with three replications in normal and water deficit conditions for two consecutive years. Physiological traits were measured for single plant samples. Weighted analysis of variance showed that water deficit stress caused significant decrease in flag leaf area and unsignificant decrease in stomatal conductance. Generation mean analysis for Chlorophyll index was accompanied by different results in terms of regression fitted models for each environment, but for stomatal conductance, the results of the generation mean analysis were the same in both environments. In addition to additive and dominant effects, epistatic interaction effects also played role in the inheritance of all studied traits. Most of these effects were double-effects. In flag leaf area, additive, additive dominant and dominant dominant effects were involved in inheritance. In water relative content, in addition to these effects, dominant effect was also involved in inheritance. Generations variance analysis showed that the gene action was additive for relative water content, dominant for flag leaf area and over dominant (in both conditions) for stomatal conductance. The gene action for Chlorophyll index under stress and normal conditions were over dominant and additive respectively.
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Claims 12
Claim · model-written summary
Water deficit significantly decreased flag leaf area.
- Taxon
- Wheat
Triticum aestivumt0 - Treatment
- water deficit stresse0
- Outcome
- flag leaf areae0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat”
e0“water deficit stress caused significant decrease in flag leaf area”
Claim · model-written summary
Water deficit produced a nonsignificant decrease in stomatal conductance.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- water deficit stresse0
- Outcome
- stomatal conductancee0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat”
e0“water deficit stress caused significant decrease in flag leaf area and unsignificant decrease in stomatal conductance”
Claim · model-written summary
Chlorophyll index generation mean regression models differed by environment.
- Taxon
- WheatTriticum aestivumt0
- Outcome
- regression fitted modelse0
- Setting
- each environmente0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat”
e0“Generation mean analysis for Chlorophyll index was accompanied by different results in terms of regression fitted models for each environment”
Claim · model-written summary
Stomatal conductance generation mean results were the same in both environments.
- Taxon
- WheatTriticum aestivumt0
- Outcome
- results of the generation mean analysise0
- Direction
- the samee0
- Setting
- both environmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat”
e0“for stomatal conductance, the results of the generation mean analysis were the same in both environments”
Claim · model-written summary
Additive, dominant, and epistatic effects contributed to inheritance of all studied traits; most were double effects.
- Taxon
- WheatTriticum aestivumt0
- Outcome
- inheritance of all studied traitse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat”
e0“In addition to additive and dominant effects, epistatic interaction effects also played role in the inheritance of all studied traits. Most of these effects were double-effects.”
Claim · model-written summary
Flag leaf area inheritance involved additive, additive dominant, and dominant dominant effects.
- Taxon
- WheatTriticum aestivumt0
- Outcome
- flag leaf areae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat”
e0“In flag leaf area, additive, additive dominant and dominant dominant effects were involved in inheritance”
Claim · model-written summary
Dominant effects also contributed to water relative content inheritance.
- Taxon
- WheatTriticum aestivumt0
- Outcome
- water relative contente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat”
e0“In water relative content, in addition to these effects, dominant effect was also involved in inheritance”
Claim · model-written summary
Variance analysis indicated additive gene action for relative water content.
- Taxon
- WheatTriticum aestivumt0
- Outcome
- gene action was additive for relative water contente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat”
e0“the gene action was additive for relative water content”
Claim · model-written summary
Variance analysis indicated dominant gene action for flag leaf area.
- Taxon
- WheatTriticum aestivumt0
- Outcome
- dominant for flag leaf areae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat”
e0“dominant for flag leaf area”
Claim · model-written summary
Variance analysis indicated overdominant gene action for stomatal conductance under both conditions.
- Taxon
- WheatTriticum aestivumt0
- Outcome
- over dominant (in both conditions) for stomatal conductancee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat”
e0“over dominant (in both conditions) for stomatal conductance”
Claim · model-written summary
Chlorophyll index gene action was overdominant under stress.
- Taxon
- WheatTriticum aestivumt0
- Outcome
- gene action for Chlorophyll indexe0
- Qualifier
- under stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat”
e0“The gene action for Chlorophyll index under stress and normal conditions were over dominant and additive respectively”
Claim · model-written summary
Chlorophyll index gene action was additive under normal conditions.
- Taxon
- WheatTriticum aestivumt0
- Outcome
- gene action for Chlorophyll indexe0
- Qualifier
- normal conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat”
e0“The gene action for Chlorophyll index under stress and normal conditions were over dominant and additive respectively”
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