ANBAR JOURNAL OF AGRICULTURAL SCIENCES

Abstract

This research was carried out in the Department of Horticulture - Ministry of Agriculture in station of vegetables research in Abu Ghraib under greenhouse 500m2, this study two experiment, the first experiment was conducted in the spring season 2016 and included a full diallel- cross between five inbridlines of the female to the production of hybrid seeds (F1). The second field experiment (performance evaluation experiment) was conducted in the spring season 2017 and included evaluation of hybrid production produced in the previous experience and compare with the hybrid adopted (kanz) within the design of the RCBD and the three replication.
Significant differences were observed between the inbred lines, F1 hybrids, and control in all traits under investigation Th F1 hybrids, showed a promising hybrid vigor in most of the traits under investigation The results showed that The best hybrid in the 2x3 plant height and the reverse 3*2 was given the highest value 300.15, 300.12 cm respectively, The hybrid 1*3 best the highest value for the flowering period of 35 days, the best F1hybrid in the yield per planet fruits number and fruit set percent was the Hybrid F1 2*3 which give 3.21 kg plant-1 31.22 fruit plant-1 103.33 gm and the Hybrid 3*2 which give in the yield per plant 31.31 kg plant-1 and fruite number give 32.41fruite plant-1 and the fruit set percent 101.96 gm. The analysis of general combining ability showed that both parents 2, 3, and 4, inbred lines were the best combiners in most of the traits tested. Most of the F1 hybrids showed a significant specific combining ability in most of the traits tested. Most of the traits examined were controlled by the non-additive gene action Heritability in its broad-sense perspective was high in most traits of F1 hybrids. However, heritability in narrow-sense perspective was low in most traits of diallel hybrids and high in most traits of reciprocal hybrids