THE COMBINING ABILITY OF TOMATO VARIATY AND INHERRITANCE OF GUANTITATIVE CHARACTERS

Abstract

The important stage of breeding program for F1 hybrids with high yield capacity is to estimate the combining ability of parental lines for productivity characteristics. The information on combining ability may predict the productivity traits to exhibit and helps produce heterotic hybrids and use the initial breeding accessions in tomato. The combining ability of breeding accessions for yield traits was studied with the use of topcross crossing.
According to the study of high yielding varieties, the varieties all increase the maturity of hybridisation. However, Jelty gigant varieties have the advantage of general and special combinations (g_i = 15.6, σ_si² = 6.4), the minimum seedling duration, and the early varieties of varieties can be used for breeding varieties
The combinations of our studies include the maturation of flowering and fruitful maturity of h²=0.69-0.67, fruit quantity per plant h²=0.60-0.66) by selection and those are inheritable characters with medium value. Early or total yield h²=0.45-0.58 leaf quantity until first inflorescences h²=0.27 had low heritage coefficient, respectively.