Oliveira Frederico I C DE, Fiege Leonardo B C, Celin Elaine F, Innecco Renato, Nunes Glauber H S, Aragão Fernando A S DE
Departamento de Fitotecnia, Universidade Federal do Ceará, Campus do Pici, Bloco 847, 60356-001 Fortaleza, CE, Brazil.
Departamento de Ciências Vegetais, Universidade Federal Rural do Semiárido, Campus Leste, Prédio CPVSA, 59625-900 Mossoró, RN, Brazil.
An Acad Bras Cienc. 2017 Apr-Jun;89(2):1155-1166. doi: 10.1590/0001-3765201720150368.
Melon is one of the most important vegetable crops in the world. With short cycle in a system of phased planting, phytosanitary control is compromised, and a great volume of agricultural chemicals is used to control vegetable leafminer. Genetic control is an ideal alternative to avoid the damage caused by this insect. Thus, the aim of this study was to evaluate Cucumis accessions in regard to resistance to leafminer and correlate the variables analyzed. Fifty-four accessions and four commercial hybrids of melon were tested. The study was divided into two experiments: with and with no choice. The following characteristics were evaluated: with choice, in field - subjective score based on the infestation and the number of mines per leaf; and with no choice, in cage - number of mines per leaf, chlorophyll content, and leaf colorimetry. The results showed variability among the accessions and some genotypes showed favorable results for resistance in both experiments. There was correlation between the two variables in the experiment in the field. The accessions CNPH 11-282, CNPH 06-1047, and CNPH 11-1077 are the most recommended for future breeding programs with aim on introgression of resistance to vegetable leafminer in melon.
甜瓜是世界上最重要的蔬菜作物之一。在分期种植系统中，由于生长周期短，植物检疫控制受到影响，大量农药被用于防治蔬菜潜叶蝇。基因控制是避免这种昆虫造成损害的理想选择。因此，本研究的目的是评估黄瓜种质对潜叶蝇的抗性，并对所分析的变量进行相关性分析。对54份甜瓜种质和4个商业杂交种进行了测试。该研究分为两个试验：有选择试验和无选择试验。评估了以下特征：有选择试验，在田间——基于虫害和每片叶子上的虫道数量的主观评分；无选择试验，在网室中——每片叶子上的虫道数量、叶绿素含量和叶片比色法。结果表明，种质间存在变异性，一些基因型在两个试验中均表现出良好的抗性结果。田间试验中的两个变量之间存在相关性。CNPH 11-282、CNPH 06-1047和CNPH 11-1077这几份种质最推荐用于未来旨在将甜瓜对蔬菜潜叶蝇的抗性基因渗入的育种计划。
