Articles
DEVELOPING NEW PROMISING GALIA MELON F1 HYBRIDS BY UTILIZING SOME EGYPTIAN MELON GENETIC RESOURCES
Article number
871_19
Pages
157 – 164
Language
English
Abstract
A long term breeding program, based on measuring the stability for year around cultivation of available melon genetic resources, led to select nine local land races and ten introduced cultivars.
These selected genetic resources were subjected to inbreeding for 4-6 generations.
The general combining ability among all inbred lines was tested and six inbred lines were selected and utilized in half diallel crosses to produce fifteen local F1 hybrids.
The inbred lines and their new F1 hybrids were evaluated in the winter season under a low tunnel in two different ecological regions for two successive growing seasons.
The twenty one breeding entries were compared with five commercial hybrids as for yield components and some fruit physical characters.
The results also proved that many of the investigated traits were improved by hybridization, since recorded a favorable heterosis over the best parents was recorded in many combinations.
Generally, the results indicated that some local F1 hybrids might be promising to be commercially competitive, since they produced a higher yield and better fruit quality than some commercial hybrids.
Moreover, the locally improved hybrids showed more stability against biotic and abiotic stress, compared with the commercial hybrids.
According to the results of this investigation, it could be concluded that conventional breeding using local genetic resources still has an important role in sustainable agricultural development in Egypt.
These selected genetic resources were subjected to inbreeding for 4-6 generations.
The general combining ability among all inbred lines was tested and six inbred lines were selected and utilized in half diallel crosses to produce fifteen local F1 hybrids.
The inbred lines and their new F1 hybrids were evaluated in the winter season under a low tunnel in two different ecological regions for two successive growing seasons.
The twenty one breeding entries were compared with five commercial hybrids as for yield components and some fruit physical characters.
The results also proved that many of the investigated traits were improved by hybridization, since recorded a favorable heterosis over the best parents was recorded in many combinations.
Generally, the results indicated that some local F1 hybrids might be promising to be commercially competitive, since they produced a higher yield and better fruit quality than some commercial hybrids.
Moreover, the locally improved hybrids showed more stability against biotic and abiotic stress, compared with the commercial hybrids.
According to the results of this investigation, it could be concluded that conventional breeding using local genetic resources still has an important role in sustainable agricultural development in Egypt.
Publication
Authors
A.A. Glala, S.A. Saleh, O.M. Sawaan, N.M. Omar
Keywords
breeding, heterosis, yield, fruit quality, net flesh percent
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