Abstract
TWELVE sunflower genotypes were evaluated for two years; 2013 ……and 2014 at three locations; Agricultural Research Stations of Shandaweel (location 1), Al-Arish (location 2) and El-Ewyinat east (location 3). Genotypic and phenotypic variances, their coefficient of variation, heritability and genetic advance were assessed. As well as study the interrelationships among oil yield attributers using genotypic and phenotypic correlation and path coefficients analysis were done. The experiments were conducted in a randomized complete block design with three replications in the field. Results proved that significant differences were observed among sunflower genotypes, for all studied characters in the three locations over two seasons. The elite genotype No 7 (Line120) surpassed the two check cultivar (Sakha 53 and Giza 102) recording the maximum values of seed yield in the first location with produced the maximum values in the second location for head diameter and seed yield and recording the maximum values of head diameter, seed yield and oil yield in the third location. Estimates of heritability in broad sense at the three locations were varied from; 26 - 97%, 29 - 96% and 57-97%, respectively. Results also indicated that, highly significant and positive correlation coefficients were obtained between oil yield and some studied traits at the genotypic and phenotypic levels in the three locations. According to path coefficients analysis (at genotypic and phenotypic levels), the traits, i.e. days to 50% flowering and plant height in location 1, days to 50% flowering, plant height, head diameter and 100-seed weight in location 2 and 100-seed weight and seed yield/plant in location 3 were important predictors of oil yield indicating their magnitude as selection criteria to obtain a valuable gain of selection for oil yield in sunflower.
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Claims 7
Claim · model-written summary
Sunflower genotypes differed significantly for all studied characters across locations and seasons.
- Taxon
- sunflower
Helianthus annuuse0 - Outcome
- all studied characterse0
- Setting
- three locationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significant differences were observed among sunflower genotypes, for all studied characters in the three locations over two seasons”
Claim · model-written summary
Line120 had maximum seed yield at location 1 versus check cultivars.
- Taxon
- sunflowerHelianthus annuust0
- Material
- Line120e0
- Outcome
- seed yielde0
- Direction
- maximume0
- Comparator
- Sakha 53 and Giza 102e0
- Setting
- first locatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“genotype No 7 (Line120) surpassed the two check cultivar (Sakha 53 and Giza 102) recording the maximum values of seed yield in the first location”
t0“sunflower”
Claim · model-written summary
Line120 had maximum head diameter and seed yield at location 2.
- Taxon
- sunflowerHelianthus annuust0
- Material
- Line120e1
- Outcome
- head diameter and seed yielde0
- Direction
- maximume0
- Setting
- second locatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“produced the maximum values in the second location for head diameter and seed yield”
e1“Line120”
t0“sunflower”
Claim · model-written summary
Line120 had maximum head diameter, seed yield and oil yield at location 3.
- Taxon
- sunflowerHelianthus annuust0
- Material
- Line120e1
- Outcome
- head diameter, seed yield and oil yielde0
- Direction
- maximume0
- Setting
- third locatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“recording the maximum values of head diameter, seed yield and oil yield in the third location”
e1“Line120”
t0“sunflower”
Claim · model-written summary
Broad-sense heritability varied across the three locations.
- Taxon
- sunflowerHelianthus annuust0
- Outcome
- heritability in broad sensee0
- Value
- 26 - 97%, 29 - 96% and 57-97%e0
- Setting
- three locationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Estimates of heritability in broad sense at the three locations were varied from; 26 - 97%, 29 - 96% and 57-97%, respectively”
t0“sunflower”
Claim · model-written summary
Oil yield had highly significant positive correlations with some traits at genotypic and phenotypic levels.
- Taxon
- sunflowerHelianthus annuust0
- Outcome
- oil yielde0
- Direction
- positivee0
- Qualifier
- some studied traitse0
- Setting
- three locationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“highly significant and positive correlation coefficients were obtained between oil yield and some studied traits at the genotypic and phenotypic levels in the three locations”
t0“sunflower”
Claim · model-written summary
Path analysis identified location-specific predictors of oil yield.
- Taxon
- sunflowerHelianthus annuust0
- Outcome
- oil yielde0
- Direction
- important predictorse0
- Qualifier
- days to 50% flowering and plant heighte0
- Setting
- location 1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“days to 50% flowering and plant height in location 1, days to 50% flowering, plant height, head diameter and 100-seed weight in location 2 and 100-seed weight and seed yield/plant in location 3 were important predictors of oil yield”
t0“sunflower”