Teste de resistência de espécies de pimenta ao nematoide Meloidogyne enterolobii

Abstract

Agriculture has and have an important role in the construction of society, the domestication of wild species was one of the main factors that allowed the transition from nomadic to sedentary life, where man could stabilize himself in a territory. Pepper, of the genus Capsicum, is used in many regions of the world, as well as in different cultures for religious, medicinal and food purposes. In Brazil, pepper production is linked to small farmers who make this crop a source of income. Indeed, the demand for the pepper market has grown due to the increasing exploration of new varieties with different flavors, pungency and colors. However, production can be impaired by diseases, especially root-knot nematodes, which damage the root system and negatively affect production. The present work aimed to test the resistance of ten pepper varieties to exposure to the nematode Meloidogyne enterolobii. The results indicated that all evaluated varieties had galls on the roots, however the Dedo de Moça and Tui varieties were classified as susceptible to the nematode and the other varieties as resistant. In general, almost all varieties had a reduction of approximately 50% in root weight, except for lineage 311902, which showed little difference, and in stem height analysis, it was observed that inoculated plants had greater growth than non-inoculated plants, which shows that the infection did not affect the development of the plants.