Abstract

Five parental forms of tomato (Solanum lycopersicum L.) and twenty hybrids F1, were studied which were obtained by the complete diallel scheme (5 x 5). For genetic analysis (by Hayman, 1954; Jinks,1954) was used line №477 (sp,u), variety Alya (sp) with reduced duration of vegetation period and three collection samples with the high lycopene content in fruits: Dark Green (hp-2dg), МО 112 (hp), Т˗3627 (Bc). The effects of the general (GCA) and specific combining ability (SCA) of the duration of vegetation period were determined and established character of inheritance. According to the results of research, the duration of vegetation period is controlled by additive-dominant genetic system. Inheritance occurs by type of over dominance, and in dry and hot summers which led to the prolongation of the duration of vegetation period, there is a tendency to incomplete dominance, but it is apocryphal. In genetic control a major role play non-additive effects of genes. The best reliable effects of the general combining ability (GCA) had line №477 and variety Alya. They can be recommended for the creation of heterotic hybrids and varieties.

Highlights

  • 2 MATERIAL AND METHODSTomato is one of the most important vegetable plants, which ranks first in the world on terms of area grown in both open and protected areas (Distefano et al, 2020)

  • We found that high reliable values of the specific combining ability (SCA) for one year of research were in line No477, samples ‘MO 112’ and ‘Dark Green’

  • It is established that the duration of vegetation period is controlled by additive-dominant genetic system

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Summary

Introduction

2 MATERIAL AND METHODSTomato is one of the most important vegetable plants, which ranks first in the world on terms of area grown in both open and protected areas (Distefano et al, 2020). For genetic analysis (Hayman, 1954; Jinks, 1954) were used the line No477 (sp,u) and variety Alya (sp) with reduced duration of vegetation period and three collection samples with high lycopene content in fruits: ‘Dark Green’ (hp2dg), ‘МО 112’ (hp) and ‘Т-3627’ (Bc).Five parental forms of tomato and twenty F1 hybrids were analysed which were obtained by the complete diallel scheme (5 x 5).

Results
Conclusion

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