Evaluation of families derived from backcrosses of processed tomato with dwarfism gene
| Autor: | Leandro Augusto Andrade Fumes, Andressa Rodrigues Fonseca, Pedro Yuri Cavasin, Derly José Henriques da Silva |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Canopy
education.field_of_study Population food and beverages Dwarfism Biology medicine.disease Horticulture Yield (wine) medicine General Earth and Planetary Sciences Analysis of variance education Agronomy and Crop Science Gene Selection (genetic algorithm) Biotechnology General Environmental Science Yield gain |
| Zdroj: | Crop Breeding and Applied Biotechnology. 21 |
| ISSN: | 1984-7033 1518-7853 |
| DOI: | 10.1590/1984-70332021v21n1n13 |
| Popis: | In comparison to tomato plants without the dwarfism gene, dwarf tomato plants were shorter, had a smaller canopy diameter and remained upright during maturation, thereby reducing the fruit-soil contact, resulting in healthier fruits. This study evaluated tomato families of a BC1F3 population carrying the dwarf gene for industrial yield. The 150 BC1F3 families and the two parents (hybrid H-9889 and accession BGH-9889) as controls were assessed in an augmented block design with four replications. The data were subjected to variance analysis and the F test. A selection index, based on the sum of ranks of Mulamba and Mock (1978), was used for the selection of genotypes, considering the most relevant traits, i.e., canopy diameter, yield, lodging and fruit firmness. Thus, selection resulted in a yield gain of 8.04%. |
| Databáze: | OpenAIRE |
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