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Etiología de la marchitez de plantas de Sechium edule (Jacq.) Sw. en la región centro del estado de Veracruz. Colegio de Postgraduados
Olguín Hernández, Gildardo.
A nivel mundial, México ocupa el primer lugar en producción y exportación de chayote (Sechium edule) tipo verde liso. La principal zona de producción se ubica en la región central de Veracruz, principalmente en los municipios de Coscomatepec, Huatusco, Ixhuatlán del Café, Chocamán, Tlilapan, Orizaba, Rafael Delgado y Amatlán de los Reyes. Como consecuencia del éxito comercial del chayote en los mercados de Norteamérica, la superficie de la producción nacional como monocultivo ha aumentado considerablemente, lo que ha generado la aparición de problemas fitosanitarios, principalmente la marchitez de plantas. Los productores han asociado este síntoma con Phytophthora spp. y aplican para su control fungicidas a base de metalaxyl, lo cual reduce la incidencia...
Palavras-chave: Phytophthora spp.; Etiología; Chayote; Metalaxyl; Etiology; Fitopatología; Maestría.
Ano: 2013 URL: http://hdl.handle.net/10521/1973
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Eficiência do metalaxyl no controle da requeima do tomateiro Horticultura Brasileira
Rodrigues,Celson; Ribeiro,Luiz G; Lopes,José Carlos; Freitas,Flávio S. de; Azevedo,Luis Antonio S. de.
Foi avaliada a eficiência das dosagens de 1; 2,5 e 5 g/cova do fungicida Ridomil 50 gr (metalaxyl 50 g/kg), em aplicação única no solo, comparada com a dosagem de 400 g/100 litros de água do Fólio (metalaxyl + clorotalonil, 80 + 400 g/kg) e do Ridomil Mancozeb br (metalaxyl + mancozeb, 80 + 640 g/kg), em dez pulverizações, para o controle da requeima do tomateiro cv. Santa Clara. O delineamento experimental foi de blocos ao acaso com seis tratamentos e quatro repetições. A percentagem de área foliar lesionada pela requeima foi de 2,75% no tratamento com Folio, 7,25% com Ridomil Mancozeb br; 18,25; 18,50 e 24,25% com as dosagens crescentes do Ridomil 50 gr, e 34,25% com a ausência de tratamento com fungicidas (testemunha). A produção de frutos...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Lycopersicon esculentum; Phytophthora infestans; Controle químico; Metalaxyl.
Ano: 2000 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362000000100015
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Effectiveness of certain chemicals against downy mildew of corn Thai Agricultural
Sawai Nuangpai; Somkiat Titatarn; Diloke Unchalisangkas; Niyom Chew-Chin.
1 table
Palavras-chave: Corn; Maize; Downy mildew; Fungicides; Glutinous corn; Seed treatment; Benalaxyl; Metalaxyl; ข้าวโพด; โรคราน้ำค้าง; สารป้องกันโรคราน้ำค้าง; การคลุกเมล็ด; ข้าวโพดข้าวเหนียว.
Ano: 1985 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4579
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อิทธิพลของการพอกเมล็ดร่วมกับสารป้องกันเชื้อราต่อคุณภาพ และอายุการเก็บรักษาของเมล็ดพันธุ์ยาสูบ Thai Agricultural
Jakkrapong Kangsopa; Boonmee Siri.
The tobacco (Nicotiana tabacum L.) seeds are very small. It cause very difficult to sowing. The tobacco seedling are easy infection by pathogens, caused by unevenness of germination. Therefore, this experiment was pelleted of tobacco seeds with different chemical fungicides and tested of pelleted seeds for seed quality and longevity storage. The experiment was conducted at Seed Processing Plant, Faculty of Agriculture, Khon Kaen University. The tobacco seeds were pelleted with pumice 150 g. per 3 g. as filler and used hydroxylpropyl methylcellulose (HPMC) at a concentration of 4% by weight as binder. Three types of fungicides were used: metalaxyl, captan and pylaclostrobin. Each type of fungicide was used 2, 4 and 6 g.ai. After that, the pelleted seeds...
Tipo: PhysicalObject Palavras-chave: Tobacco seed; Metalaxyl; Fungicide; Systemic fungicide; Seed pelleting; Seed quality; Seed longevity; ยาสูบ; เมล็ดพันธุ์; เมล็ดยาสูบ; การพอกเมล็ด; สารเคมีป้องกันเชื้อรา; สารเคมีชนิดดูดซึม; คุณภาพเมล็ดพันธุ์; เทคโนโลยีเมล็ดพันธุ์; การเก็บรักษาเมล็ดพันธุ์; พันธุ์เวอร์จิเนีย; อัตราการงอกของเมล็ด; ความแข็งแรงของเมล็ด.
Ano: 2014 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5719
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