25 documents found, page 1 of 3

Inheritance of traits related to fruit shape and color in african eggplant

The African eggplant is a solanaceous vegetable with bitter tasting immature fruit of various colors (light green, dark green, white) and shapes (from elongated to round). Because it is a little known vegetable, there are few studies on the inheritance of its economically important traits.  The objective of this work had was to study the inheritance of shape and immature fruit color in S. gilo, in order to assi...

Heterosis and combining ability in bell pepper lines with resistance to multipl...

The aim of this study was to develop bell pepper hybrids with resistance to multiple pathogens and make inferences in regard to components of heterosis in hybrids obtained from lines presumed to be resistant to Pepper yellow mosaic virus (PepYMV), Phytophthora capsici, or Meloidogyne incognita. The studies were carried out in a greenhouse. We used ten lines, thirty experimental hybrids, and seven controls (Kona...

Diallel analysis and heterosis components in paprika peppers

Herança da resistência do acesso de melancia PI 595201 a isolado de PRSV-W do E...

Combining ability of summer-squash lines with different degrees of parthenocarp...

Assessment of resistances to multiple pathogens in experimental sweet pepper hy...

The aim of this study was to assess resistance to some of the major sweet pepper pathogens [Phytophthora capsici, Pepper yellow mosaic virus (PepYMV) and Meloidogyne incognita] in a group of experimental hybrids and their respective parental lines, and to identify hybrids possibly resistant to all three pathogens. Ten parental breeding lines, thirty experimental hybrids and seven commercial controls (Konan-R, M...

Combining ability of tomato lines in saladette

Devido à crescente importância do mercado do tomate tipo italiano no Brasil, objetivou-se conhecer a capacidade combinatória de linhagens de tomateiro potencialmente utilizáveis como genitoras de híbridos voltados a esse segmento. O experimento constituiu-se de 28 genótipos, sendo 18 híbridos oriundos de um dialelo parcial, obtido pelo cruzamento entre dois grupos de linhagens: Grupo I (nove genitores) e Grupo ...

Controle genético da qualidade da vagem em cruzamento de feijão-vagem e feijão-...

O objetivo deste trabalho foi determinar os tipos principais de ações gênicas responsáveis pela expressão fenotípica de alguns caracteres de qualidade da vagem, em cruzamento de feijão-vagem e feijão-comum. Foram avaliadas duas populações segregantes (F2 e F2:3), além das linhagens parentais. Como genitora feminina, utilizou-se a cultivar de feijão-vagem Conquista Rasteiro e, como genitora masculina, a linhagem...

Glandular trichomes that mediate resistance to green peach aphid in tomato geno...

 The aim of this study was to verify the resistance of tomato genotypes (crossed with Solanum galapagense) to the green peach aphid, Myzus persicae, and the association of this resistance with glandular trichomes. Leaf trichomes were quantified for seven F2 genotypes of the BPX-486 population derived from crossing S. lycopersicum ‘TOM-684’ and S. galapagense accession ‘LA-1401’, for the commercial controls...

Reppelency to spider mite mediated by the gene mi and by the synergism between ...

Tomato fruits (Solanum Lycopersicum) are intended for human consumption in its in natura or industrially processed form. However, the expansion of its cultivation area has favored the emergence of pests, such as spider mite (Tetranychus urticae), which significantly affects the production. The objective of this study was to quantify and evaluate the repellency of tomato lines to spider mite in function of the g...