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首页> 外文期刊>Horticultura Brasileira >Rea??o de porta-enxertos de Solanáceas silvestres ao parasitismo (de Meloidogyne javanica)
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Rea??o de porta-enxertos de Solanáceas silvestres ao parasitismo (de Meloidogyne javanica)

机译：野生茄科砧木对寄生虫的反应（来自Meloidogyne javanica）

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摘要

Intensive production of vegetables in greenhouses can increase the amount of inoculum of soil-borne pathogens, such as the root-knot nematode. Thus, in this study we aimed to evaluate the potential of Solanaceae as rootstocks resistant to Meloidogyne javanica nematodes as an alternative to tomato grafting. The experiment consisted of seven treatments: wild species joá-vermelho ( Solanum capsicoides ), joá-bagudo ( Solanum palinacanthum ), joá-bravo ( Solanum viarum ), jurubeba ( Solanum spp.) and the commercial tomato cultivars Santa Cruz Kada, Batalha and Guardi?o. The analyzed variables were gall index; egg mass index; final nematode population; reproduction factor (FR) and reaction: susceptibility, resistance and immunity; fresh shoot and root mass and number of eggs per gram of roots. The wild species joá-vermelho, joá-bagudo and jurubeba showed resistance, with the lowest indexes of galls, egg mass, final population of nematodes and number of eggs per gram of root, not differing from the resistant control treatment (hybrid rootstock Guardi?o), with a reproduction factor less than 1, showing potential to be used as a resistant rootstock to M. javanica . Joá-bravo species showed susceptibility to the root-knot nematode, with a FR1, not differing from the susceptible tomato Santa Cruz Kada. These results confirm the resistance of wild species to nematode parasitism, which can prove the viability of use as possible alternative rootstocks, and reinforce the idea that more studies should be carried out aiming to provide more viable options for farmers and plantlet producers.
机译：大棚蔬菜的集约化生产可以增加土壤传播的病原体（例如根结线虫）的接种量。因此，在这项研究中，我们旨在评估茄科作为抗番茄根结线虫的砧木作为番茄嫁接替代品的潜力。该实验包括七种处理方法：野生种joá-vermelho（茄属茄），joá-bagudo（茄属茄属），juá-bravo（茄属茄属），jurubeba（茄属属）和商业番茄栽培种Santa Cruz Kada，Batalha和瓜迪奥分析变量为胆指数。鸡蛋质量指数最终线虫种群;生殖因子（FR）和反应：易感性，抗性和免疫性;鲜芽和根的质量以及每克根的卵数。野生种joá-vermelho，joá-bagudo和jurubeba表现出抗药性，其胆汁，卵重，线虫最终种群和每克根系的卵数最低，与抗药性对照处理（杂交砧木Guardi？ o）的繁殖因子小于1，显示有潜力用作爪哇木兰的抗性砧木。若布拉夫种对根结线虫表现出易感性，FR> 1，与易感番茄圣克鲁斯加达州没有区别。这些结果证实了野生物种对线虫寄生虫的抗性，可以证明其可以用作可能的替代砧木的可行性，并强化了应该开展更多研究旨在为农民和小植物生产者提供更多可行选择的想法。

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