Articles
A comparison of watermelon heirlooms’ genitor abilities
Article number
1439_13
Pages
97 – 102
Language
English
Abstract
This study used the line-x-tester method to evaluate 13 watermelon heirlooms and three standard cultivars (‘Washington’, ‘Galaxy’, and ‘Crimson Sweet’) for some agricultural traits.
Leaf length and width, petiole length, seed length and width, pollen diameter, pollen vitality percentage, the number of days to the first male flower, the number of days to the first female flower, and the number of days to the flower to harvest features were evaluated for general combination abilities.
For each trait, the general combination capabilities of the parents were calculated separately.
The highest general combination capability values were observed for leaf length in ‘Washington’ and 94054, for leaf width in ‘Galaxy’ and 94054, for petiole length in ‘Washington’ and 94027, for seed length and seed width in ‘Crimson Sweet’, for pollen diameter in 94100, for the number of days to the first male flower in ‘Crimson Sweet’, for the number of days to the first female flower in ‘Galaxy’ and 94131, and for the number of days to flowering to harvest in ‘Washington’ and PI169264 parents.
Upon examining the inheritance values, it was observed that due to the additive variance being superior to the dominant variance for leaf length, leaf width, petiole length, seed length, seed width, and the number of days to the first male flower traits, narrow-sense heritability took precedence.
For pollen diameter and viability traits, it was observed that the additive and dominant variances were equal, indicating a decreasing narrow-sense heritability.
In the case of the number of days to the first female flower and the number of days from flowering to harvest traits, the additive variance accounted for almost the entire variance, suggesting the presence of numerous factors influencing the variation in these two traits.
The best parents in terms of overall combination capabilities for these traits have been identified as 94054, 94027, 94100, 94131, and PI169264. Regarding these characteristics, it is suggested that these heirlooms may serve as parents for future research.
Leaf length and width, petiole length, seed length and width, pollen diameter, pollen vitality percentage, the number of days to the first male flower, the number of days to the first female flower, and the number of days to the flower to harvest features were evaluated for general combination abilities.
For each trait, the general combination capabilities of the parents were calculated separately.
The highest general combination capability values were observed for leaf length in ‘Washington’ and 94054, for leaf width in ‘Galaxy’ and 94054, for petiole length in ‘Washington’ and 94027, for seed length and seed width in ‘Crimson Sweet’, for pollen diameter in 94100, for the number of days to the first male flower in ‘Crimson Sweet’, for the number of days to the first female flower in ‘Galaxy’ and 94131, and for the number of days to flowering to harvest in ‘Washington’ and PI169264 parents.
Upon examining the inheritance values, it was observed that due to the additive variance being superior to the dominant variance for leaf length, leaf width, petiole length, seed length, seed width, and the number of days to the first male flower traits, narrow-sense heritability took precedence.
For pollen diameter and viability traits, it was observed that the additive and dominant variances were equal, indicating a decreasing narrow-sense heritability.
In the case of the number of days to the first female flower and the number of days from flowering to harvest traits, the additive variance accounted for almost the entire variance, suggesting the presence of numerous factors influencing the variation in these two traits.
The best parents in terms of overall combination capabilities for these traits have been identified as 94054, 94027, 94100, 94131, and PI169264. Regarding these characteristics, it is suggested that these heirlooms may serve as parents for future research.
Authors
N. Sahin
Keywords
watermelon, general combination ability, heritability, heirloom, line × tester
Online Articles (75)