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首页> 外文期刊>Acta Horticulturae >On-farm evaluation of pepper grafting technology for managing soil-borne diseases of sweet peppers during hot-wet season in highland tropics.
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On-farm evaluation of pepper grafting technology for managing soil-borne diseases of sweet peppers during hot-wet season in highland tropics.

机译：在高地热带湿润季节进行的辣椒嫁接技术在农场的评估，以管理甜椒的土壤传播疾病。

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A major constraint limiting yield and production of sweet pepper (Capsicum annuum) during the hot-wet season in the highland tropics is the high incidence of soil-borne diseases including bacterial wilt-BW (Ralstonia solanacearum) and Phytophthora blight-PB (Phytophthora capsici). High temperature and humidity during the wet season favor development of these soil pathogens. A technology on grafting sweet pepper scion onto chili pepper rootstock with resistance to both diseases and flooding was developed at AVRDC - The World Vegetable Center since 2002. Several chili pepper lines were identified with high resistance to BW and PB. From 2007 to 2008, on-farm trials were conducted in Nantou, Central Taiwan to evaluate disease resistance and subsequent yield of sweet pepper cultivars grafted onto resistant chili pepper rootstocks. In both years, the incidence of PB and BW was significantly (P<=0.05) lower in grafted than non-grafted plants. Marketable fruit yields averaged over four sweet pepper cultivars (scions) were significantly (P<=0.05) greater in plants grafted onto seven chili rootstock lines compared to non-grafted plants. Outstanding and high yielding sweet pepper cultivars were 'Andalus' and 'Hazera'. Six outstanding chili pepper rootstock lines with low incidence of BW and PB were identified in these trials. This study indicates that grafting technology is effective in reducing soil-borne diseases of sweet pepper which leads to increased yield and production during the hot-wet season in tropical highlands.
机译：高地热带湿季中限制甜椒（Capsicum annuum）产量和产量的主要制约因素是土壤传播疾病的高发生率，包括细菌性枯萎BW（Ralstonia solanacearum）和疫霉疫霉（Phytophthora capsici） ）。雨季的高温高湿有利于这些土壤病原体的生长。自2002年以来，AVRDC（世界蔬菜中心）开发了一种将甜椒接穗嫁接到辣椒砧木上的技术，该技术既抗病又抗洪。该技术被鉴定出了几种对BW和PB具有高抗性的辣椒。 2007年至2008年，在台湾中部南投进行了农场试验，以评估其抗病性以及嫁接在抗性辣椒砧木上的甜椒品种的后续产量。在这两年中，嫁接的PB和BW的发生率均显着低于未嫁接的植物（P <= 0.05）。与未移植的植物相比，在七个辣椒砧木系上移植的植物中，四个甜椒品种（接穗）的平均可销售水果产量显着更高（P <= 0.05）。优质和高产的甜椒品种是“安达卢斯”和“哈泽拉”。在这些试验中，鉴定出六种出色的BW和PB发生率较低的辣椒砧木系。这项研究表明，嫁接技术可有效减少甜椒在土壤中传播的疾病，从而在热带高地的热湿季节提高产量和产量。

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