N. Guerra, Renan Haramoto, J. Schmitt, Gabriel D. Costa, J. J. Schiessel, Antonio M. Oliveira Neto
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引用次数: 2
Abstract
Santa Catarina State. Methods: Two experiments were carried out in the commercial garlic area with Ito and Chonan cultivars. Both experiments were conducted in randomized block design. The traits for Ito cultivar were without weed control, with weed control, with linuron (810 g ha -1 ), diuron (1,000 g ha -1 ), pendimethalin (1600 g ha -1 ), S-metolachlor (1200 g ha -1 ), oxyfluorfen (720 g ha -1 ) or flumioxazin (40 g ha -1 ). For the experiment with Chonan cultivar the treatment composed by oxadiazon (1000 g ha -1 ) was included. The analyzed variables were based on weed community control and phytotoxicity, stand, diameter of bulbs and productivity of garlic. Results: The infesting species of the experiment with the cultivar Ito were Stellaria media and Stachys arvensis , whereas for Chonan, only the first was found. The herbicides applied in pre-emergence were efficient in controlling these species until 45 days after application - DAA. The highest injuries at 45 DAA were caused by S-metolachlor, with 33% for Ito cultivar and 10% for Chonan. The best herbicides, taking into account weed control and productivity, were pendimethalin and S-metolachlor, for the Ito cultivar, and pendimethalin, oxyfluorfen, and flumioxazin for the Chonan cultivar. Conclusions: The pendimethalin stood out for presenting excellent weed control and being selective for
圣卡塔琳娜州立大学。方法:以伊藤和天安两个品种在商品大蒜区进行试验。两项实验均采用随机区组设计。伊藤品种的性状表现为无杂草防治、有杂草防治、施施利脲(810 g ha -1)、迪乌隆(1000 g ha -1)、二甲甲烷(1600 g ha -1)、s -甲草胺(1200 g ha -1)、氟氧芬(720 g ha -1)和氟恶嗪(40 g ha -1)。以天安品种为试验材料,采用恶二唑(1000 g ha -1)处理。分析变量以大蒜的杂草群落控制和植物毒性、林分、鳞茎直径和生产力为基础。结果:以伊藤为实验对象,侵染种主要为中星和石竹,而天安为实验对象,侵染种主要为中星。在出苗期前施用除草剂,直至施用后45 d,对这些物种的防治效果都很好。45 DAA时,s -甲草胺对植株的伤害最大,伊藤占33%,天安占10%。考虑到杂草控制和生产力,伊藤品种的最佳除草剂是戊二甲基灵和s -甲草胺,而天安品种的最佳除草剂是戊二甲基灵、氧氟芬和氟恶嗪。结论:戊二甲基灵对杂草具有良好的防效和选择性
Planta DaninhaAgricultural and Biological Sciences-Plant Science
自引率
0.00%
发文量
0
审稿时长
16 weeks
期刊介绍:
Planta Daninha is a scientific journal published by the Brazilian Society of Weed Science (SBCPD - Sociedade Brasileira da Ciência das Plantas Daninhas). Papers submitted for publication must be sent through an electronic system, on http://www.scielo.br/pd. Works may be written in Portuguese, English, or Spanish, and will be accepted after being reviewed and approved by the Editorial Board. Only papers that have not been published or submitted for publication in other media will be accepted. Articles in Portuguese will be translated to English after being properly corrected and authorized by the authors. Planta Daninha has with goal to publish genuine technical-scientific papers and literature reviews from a critical perspective on Biology, weed management, and related topics.