Combining Ability And Cold Resistance Survey On Seven Eggplant Variations

Eggplant (Solarium melongena L. ) is a kind of vegetable with abroad distributing, large consumption and with various edible ways. So it is a very popular vegetable. But different region has different consumption habit and the study on hybridization rule of eggplant is not all-sided. At the same time, we need a fast and accurate way to determine the cold resistance of eggplant, the study on general variation is already exist, but we need to validate these ways in Fl generation and find a very useful way.This study use seven materials as parents generation, they have remarkable differences on fruit color, fruit shape and maturation time. Then make the Fl generation, plant all the combination in the experiment field, observe its quantitative characters and qualitative characters, induce its hybridization rules. Survey its cold resistance in the laboratory, compare these methods then choose a fast and accurate mean.The main results were as follows:1. According to the g.c.a analysis: if we want make a high productive variation, we can choose material 6 and 7 as parents generation; if the early yield is the main breeding aim, then the material 4, 6 is the best choice and material 6, 7, 1 is contributing to high single fruit weight.2. After the s.c.a analysis, we know: the parent 6 has the highest s.c.a in the characters fruits/single plant, early fruits quantity, early blot yield, bolt yield, bolt fruits quantity. That means its breeding offspring will show remarkable differences in all these character and produce some extreme types, which will benefit our breeding choice.3. From the T.C.A analysis, we can conclude that: the combination 6X5 has the highest s.c.a among all the combinations, so it has the highest T.G.A, that is the main reason why it has a higher yield.4. We can conclude from the qualitative characters that: Fruit color, purple >red >green >white. Fruit shape, ovum >cylinder > long. Plant shape, horizon Extension >erection. Anthotaxy quantity, multiple >single.5. Surveying the electrical conductivity, soluble sugar, Pro. The fist two results are the same, so we can use them as the means of cold resistance evolution.6. We can know the comparative importance from the path and relation analysis of the cold resistance and the other characters: single plant yield > blot fruit quantity > early blot yield > single plant fruit quantity > plant height > single fruit weight > early fruit quantity > first flower node > fruit shape exponent > blot yield.