Abstract
Drought is one of the significant abiotic stress factors that affect plant development and productivity. Screening and producing of more tolerant genotypes with higher yield capacity is the breeders' principal purpose. Therefore, this work was carried out to evaluate the performance of four sugar beet cultivars (Top, Hossam, Hercules and Kawamera) under water limitation. The drought stress experiment was applied based on three water regimes, 25%, 50% and 75% (severe, moderate and non-stress conditions, respectively) of relative water capacity (RWC). The study incorporated some productivity and quality traits. The results showed that drought stress has a significant effect on all studied traits. Whereas, increasing of water deficiency led to decrease of the productivity traits and increasing of quality parameters. Kawamera cultivar has superior performance in all the studied traits under all three different levels of water regime. Besides, the four cultivars were assessed by both SSR and ISSR molecular markers. SSR marker exhibited a higher polymorphism percentage (71.43%) than ISSR marker (44.26%). In addition, the mean polymorphism information content (PIC) value was higher for the SSR marker (0.25) than the ISSR marker (0.18) too. Moreover, the constructed dendrograms revealed that the SSR marker was able to separate the cultivars according to their drought-tolerance, where the highest drought-tolerant cultivar (Kawamera) was classified alone in the main cluster. However, the superiority of Kawamera cultivar under drought stress indicated that it could be utilized in breeding programs for developing more drought-tolerant sugar beet cultivars.
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Claims 7
Claim · model-written summary
Water deficiency reduced productivity traits.
Not reportedTaxonComparator
Verbatim
e0“increasing of water deficiency led to decrease of the productivity traits”
t0“sugar beet cultivars”
Claim · model-written summary
Water deficiency increased quality parameters.
Not reportedTaxonComparator
Verbatim
e0“increasing of water deficiency led to decrease of the productivity traits and increasing of quality parameters”
t0“sugar beet cultivars”
Claim · model-written summary
Kawamera performed best across studied traits and water regimes.
- Material
- Kawamerae0
- Outcome
- superior performancee0
- Direction
- superiore0
- Comparator
- all three different levels of water regimee0
Not reportedTaxon
Verbatim
e0“Kawamera cultivar has superior performance in all the studied traits under all three different levels of water regime”
t0“sugar beet cultivars”
Claim · model-written summary
SSR had higher polymorphism than ISSR.
- Taxon
- sugar beet cultivars
Beta vulgaris subsp. vulgarist0 - Outcome
- polymorphism percentagee0
- Direction
- highere0
- Value
- 71.43%e0
- Comparator
- ISSR markere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SSR marker exhibited a higher polymorphism percentage (71.43%) than ISSR marker (44.26%)”
t0“sugar beet cultivars”
Claim · model-written summary
SSR had higher mean PIC than ISSR.
- Taxon
- sugar beet cultivarsBeta vulgaris subsp. vulgarist0
- Outcome
- mean polymorphism information content (PIC) valuee0
- Direction
- highere0
- Value
- 0.25e0
- Comparator
- ISSR markere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the mean polymorphism information content (PIC) value was higher for the SSR marker (0.25) than the ISSR marker (0.18)”
t0“sugar beet cultivars”
Claim · model-written summary
SSR dendrograms separated cultivars by drought tolerance, with Kawamera alone in the main cluster.
- Taxon
- sugar beet cultivarsBeta vulgaris subsp. vulgarist0
- Material
- Kawamerae0
- Outcome
- separate the cultivars according to their drought-tolerancee0
- Comparator
- main clustere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“SSR marker was able to separate the cultivars according to their drought-tolerance, where the highest drought-tolerant cultivar (Kawamera) was classified alone in the main cluster”
t0“sugar beet cultivars”
Claim · model-written summary
The authors suggested using Kawamera to breed more drought-tolerant sugar beet.
- Taxon
- sugar beet cultivarsBeta vulgaris subsp. vulgarise0
- Material
- Kawamerae0
- Outcome
- utilized in breeding programse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Kawamera cultivar under drought stress indicated that it could be utilized in breeding programs for developing more drought-tolerant sugar beet cultivars”
The same questions in other papers
drought · yield · Beta vulgaris (beet)Results differ
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See all 32 papers →drought · quality: general · Beta vulgaris (beet)Positive and negative results
1 paper in the same direction as this paper · 2 in the opposite direction
- negative
- negative
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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.