科研之友
微信
新浪微博
Facebook
分享链接
摘要
A mancha marrom causada pelo fungo Bipolaris sorokiniana 谷 considerada um dos problemas fitossanit芍rios mais importantes na cevada provocando redu es na produtividade e preju赤zos na qualidade cervejeira. O objetivo deste trabalho foi avaliar o efeito dos elicitores goma xantana e alicina e do fungicida epoxiconazole + piraclostrobina no controle da mancha marrom em cevada cervejeira, cultivar BRS 195 em dois ciclos de cultivo. O experimento foi conduzido na Funda o Agr芍ria de Pesquisa Agropecu芍ria (FAPA), em Guarapuava, Estado do Paran芍, em delineamento de blocos ao acaso, comquatro repeti es. A aplica o de elicitores e fungicida resultou em maior peso de mil sementes, sem interferir no teor de prote赤nas e na classifica o comercial. O rendimento de gr os foi superior ap車s duas ou tr那s aplica es de alicina. A incid那ncia e severidade de B.sorokiniana nas folhas de plantas tratadas com elicitores foram semelhantes 角quelas com fungicida. The disease spot blotch, caused by the fungi Bipolaris sorokiniana, is considered one of the most important phytosanitary problems ofbarley crop resulting on low productivity and damage on beer quality. The objective of this work was to evaluate the effect of the elicitors xanthan gum and alicin and fungicide epoxiconazole + pyraclostrobin on spot blotch control of barley cultivar BRS 195 during two cultivation cycles. The experiment was carried out at Funda o Agr芍ria de Pesquisa Agropecu芍ria (FAPA), Guarapuava, state of Paran芍. The experimental design was in completely randomized blocks, with four replications. Treatment of barley plants withelicitors and fungicide resulted in higher thousand-seed weight without interfering on protein content and commercial classification. The grain yield increased after two or three alicin treatments. Bipolaris sorokiniana incidence and severety on the leaves of plants treated with elicitors were similar to those treated with fungicide.
