Abdulmohsen Khaleel Murie^*(1) Mohammad Yahya Muaalla⁽²⁾ Mitiadi George Burass⁽³⁾ Bollous Khouri⁽²⁾ and Antoen Antoen⁽¹⁾

(1). Hurticulture Research Administration, General Commission for Scientific Agricultural Research (GCSAR), Damascus, Syria.
(2). Crops Department, Faculty of Agriculture, Tishreen University, Lattakia, Syria.
(3). Hurticulture Department, Faculty of Agriculture, Tishreen University, Lattakia, Syria.

(*Correponding author: Dr. Abdulmohsen Khaleel Murie. E-Mail: abdmmurie@yahoo.com).

Received: 08/04/ 2015                                     Accepted: 22/06/ 2015

Abstract

The study was conducted at Altyba Research Station of the  General Commission for Scientific Agricultural Research (GCSAR), Syria,  during 2008-2009 seasons, using nine parental lines and their 36 F1 hybrids, which were obtained by half diallel crossing,  to study the charateristics of the mature friuts, seed yield and its components, seed charateristics and their quality, also to estimate hetrerosis, to determine the superior hybrids that to be invested in the agricultural production. Randomized complete block design with three replications was applicated. Results showed that most of the crosses recorded a positive and high significant of heterosis, in most characters, the heterosis ranged from 2.92% to 141.06% compared to mid parents, and ranged from 0.19% to 134.83% compared to the better parent.  Hybrids of (5×6، 4×7، 4×6) exhibited higher heterosis values (102.74%، 89.48%،77.23%) for seed yield, modrate heterosis values for 100 seed weight (14.06%، 16.80%، 19.63%), and for fat content (7.48%، 8.90%، 5.44%), respectively. Hybrids )5×6، 4×7، 4×6) are considered promissing to be invested for seed production purpose, and supporting raw medical material to extract vitamin E.

Key words: Cucurbita pepo, Heterosis, Seed yield components, Seed characters, Quality characters,

Full paper in Arabic:

قوة الهجين للإنتاجية البذرية ومكوناتها، صفات البذور وخصائصها النوعية في قرع الكوسا Cucurbita pepo