Overview

Original Research

GENE ACTION, ANALYSIS OF COMBINING ABILITY AND HETEROSIS EFFECTS FOR YIELD, YIELD COMPONENTS AND QUALITY TRAITS IN EGGPLANT (SOLANUM MELONGENA L.)

MOHAMED F. M. ABDELKADER 1, MAMDOUH M. A. AWAD-ALLAH 2, MOHAMED Z. EL-DIASTY 3, SUZAN M.F. RASHED 4, MOHAMED ABD ALLAH AZAB 5, and MOHAMED A. ABDEIN 6.

Vol 17, No 12 ( 2022 )   |  DOI: 10.5281/zenodo.7475969   |   Author Affiliation: Department of Plant Production, College of Food and Agriculture, King Saud University; Riyadh 12372 Saudi Arabia 1; Rice Research Department, Field Crops Research Institute, Agricultural Research Center, Giza, 12619, Egypt 2; Genetic Department, Faculty of Agriculture, Mansoura University, Mansoura 35516, Egypt 3; Department of Plant Production, Desert Research Center, El-Mataria, Cairo, Egypt 4; Vegetable Sciences, Horticulture Department, Faculty of Agriculture (Assiut branch), Azhar University, Egypt 5; Biology Department, Faculty of Arts and Science, Northern Border University, Rafha 91911, Saudi Arabia 6.   |   Licensing: CC 4.0   |   Pg no: 1329-1346   |   To cite: MOHAMED F. M. ABDELKADER, et al., (2022). GENE ACTION, ANALYSIS OF COMBINING ABILITY AND HETEROSIS EFFECTS FOR YIELD, YIELD COMPONENTS AND QUALITY TRAITS IN EGGPLANT (SOLANUM MELONGENA L.). 17(12), 1329–1346. https://doi.org/10.5281/zenodo.7475969   |   Published on: 23-12-2022

Abstract

Eggplant is an important food and agricultural crop for achieving food security worldwide. Given this, the International Treaty on Plant Genetic Resources for Food and Agriculture (ITPGRFA) included the eggplant in the List of Annex 1. Thus, the current study was conducted to an analysis of combining ability and heterosis effects for yield, yield components, and quality traits in Eggplant. For this reason, eight eggplant parental genotypes with 28 crosses resulted from the mating of a half-diallel and were planted during the summer seasons of 2020 and 2021. The results showed highly significant values of the general and specific combining ability, and this indicates the role of additive and dominance gene action in the control of the inheritance of the traits studied. Moreover, the ratio of (σ2GCA/σ2SCA) was more unity indicating that the importance of the additive gene action in the inheritance of plant height, while the non-additive gene action is important of controlled the inheritance of the number of days to flowering, stem diameter, number of branches, fruit length, fruit diameter, fruit weight, early yield, and total yield. The majority of the crosses showed a highly significant and desirable heterosis percentage of mid-parent and better-parent heterosis for most of the traits studied. The percentage of mid-parents and better-parent heterosis were reached 125.30 and 113.76% for fruit weight, 96.10 and 95.84% for total yield, 56.56 and 44.50% for early yield, 48.03 and 46.82% for fruit length, 38.40 and 35.65% for stem diameter, 38.06 and 34.90% for the number of branch/plant, 28.86 and 27.86% for fruit diameter, 6.68 and 1.78% for plant height and -8.41 and -6.52% for days to the first flower, respectively. The crosses L01 × L03, Black Balady × L03, and L02 × L03 showed the highest values and could be promising hybrids with high yield and use in breeding programs to improve production capacity.

Keywords

Heterosis; General combining ability (GCA); specific combining ability (SCA); Eggplant