Genetic variability and correlation studies in some genotypes of eggplant [electronic resource]
Language: English Summary language: Arabic Publication details: 2024Description: p. 1-17Other title:- دراست الاختلافات الوراثية والارتباط في بعض التراكيب الوراثية للباذنجان [Added title page title]
- Zagazig journal of agricultural research, 2024 v. 51 (1) [electronic resource]
| Item type | Current library | Call number | Status | Date due | Barcode | |
|---|---|---|---|---|---|---|
Articles
|
Main | ART ZJAR V51 No1 1 (Browse shelf(Opens below)) | Available |
Includes bibliographic reference
Assessment of genetic variability is crucial in developing new genotypes with desired
yield and quality traits. This evaluation allows breeders to identify superior germplasm, breeding
genotypes with specific combinations, and enhance crop performance across diverse environmental
conditions. Hence, this study aimed to study the performance of ten eggplant genotypes (Solanum
melongena L.); i.e., Little Fingers (LF), Ping Tung (PT), Antigua (An), Aswad (As), Japanese White
Egg (JWE), Apple Green (AG), Rotonda Bianca Stumata di Rosa (BSR), Korean Red (KR), Black
Oblong (BO) and Black Very Long (BL). In addition, to explore genetic advance and correlation
among studied traits under three intra-row plant spacings, (30, 45 and 60 cm). The study was
performed at Zagazig District, Egypt during the two successive summer seasons of 2017 and 2018.
The results indicated significant variation among the tested genotypes.The broad sense heritability
(hb2) exhibited the highest percentage at narrow planting spaces and decreased with increased spaces
in all studied traits. Broad sense heritabilities were moderate magnitude for number of branches (39%
and 30.9%) at 45 and 60 cm spaces, respectively. Genetic advance (GA %) was high for all studied
traits except number of branches. High heritability estimates and a high predicted genetic advance
indicated that these qualities and genotypes could be effective in developing breeding programs to
increase fruit quality and yield. Strong genetic correlations between morphological and yield-related
variables were found via correlation studies. The path analysis results showed that the fruit weight had
the largest direct effect on yield/ plant (2.984 and 3.11) followed by number of fruits (0.579 and
1.525), and branches number/ plant (0.161 and 0.304) at 30 and 45 cm planting spaces, respectively.
While the branches number/ plant exhibited the largest direct effect on yield/ plant (5.341) followed by
fruit length (3.328), and fruit diameter (0.625) at 60 cm planting space, indicating the effectiveness of
direct selection for these traits for developing high yielding genotypes of eggplant under different
planting spaces.
Key words: Eggplant, genotypes, heritability, genetic variability, correlation, yield traits.
Summary in Arabic
There are no comments on this title.