Pesticides in vitro interference in the germination and in the tube pollinic germination and elongation in the tomato plant Cultivar Santa Cruz kada

• Autor(a) principal: de Lacerda, Cynthia Araújo
• Data de Publicação: 1994
• Outros Autores: de Lima, José Oscar Gomes, de Almeida, Élcio Cruz, de Oliveira, Laede Maffia
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Pesquisa Agropecuária Brasileira (Online)
• Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/4219
• topic: tomato; Lycopersicon esculentum; pollen; pesticides action; tomate; Lycopersicon esculentum; pólen; ação de pesticidas

The germination of pollen and tube elongation of tomato (Lycopersicon esculentum Mill.), on artificial medium were drastically reduced by dry residues of chlorothalonil 75% WP (3.200 ppm of a.i.), mancozeb 80% WP (2.400 ppm of a.i.), mancozeb 48% WP (1.680 ppm of a.i.) + metalaxyl 10% WP (350 ppm of a.i.), and dibrom 86% EC (1.030 ppm of a.i.). Cartap 50% SP (600 ppm of a.i.) had no effect upon pollen germination but reduced tube elongation by 38.2% in relation to control. the spreaders stickers, alkyl phenol ethoxylate 25% AS (70 ppm of a.i.) and naphthenic hydrocarbons + ethoxylate compounds 86% - (1.720 ppm of a.i.), and the insecticides abamectin 1.8% EC (300 ppm of a.i.), deltamethrin 2.5% EC (10 ppm of a.i.), methamidophos 60% LC (600 ppm of a.i.), and permethrin 50% EC (100 ppm of a.i.) were noninjurious to pollen.