...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Acta Horticulturae >Evaluation and Comparison of Phosphorous Acid Biofungicides and Fertilizer on Control of Pecan Scab
【24h】

Evaluation and Comparison of Phosphorous Acid Biofungicides and Fertilizer on Control of Pecan Scab

机译：磷酸生物杀真菌剂和肥料防治山核桃结ab的评价与比较

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The 'Desirable' pecan (Carya illinoinensis) cultivar grafted onto native seedling pecan rootstock in Red River Parish, and the 'Candy' pecan cultivar grafted onto 'Stuart' rootstock in Pointe Coupee Parish were used to compare the efficacy of foliar applications of Fosphite~R, Rampart~R, Phostrol~R and Nutri-phite~R phosphorous acid products on pecan scab (Fusicladium effusum G. Winter) to a standard rotation of commonly used commercial fungicides, and to determine if soil applications of Fosphite~R,Rampart~R, Phostrol~R and Nutri-phite~R provide any protection against pecan scab infection in 2011-2012. Pecan scab is the most important disease on pecans in Louisiana in terms of crop loss and money spent on control. Phosphorous acid is easily absorbed by plants and translocated via the xylem and phloem. While most pecan fungicides are applied foliarly, the systemic movement of phosphites can occur following soil applications. If soil applications of phosphites can successfully provide scab protection, then homeowners and commercial growers who cannot afford expensive spray equipment could improve their nut quality, production, and income. Drought conditions in 2011 reduced the incidence of pecan scab in 2011, but there was heavy scab pressure in 2012. Disease prevalence was much greater in trees receiving soil applications of phosphite fungicides compared to trees receiving foliar applications. Foliar applications of phosphite fungicides provided good control of pecan scab and should be considered for inclusion in commercial fungicide rotations. Soil applications of phosphite fungicides did not provide adequate protection against pecan scab at the chemical rates used in the current study. The data for 'Candy' and 'Desirable' suggests that soil applied phosphorous acid may provide some protection in low scab pressure situations, but had widespread infections similar to control trees when the scab pressure was severe.
机译：嫁接在红河教区的天然山核桃苗山核桃砧木上的'山核桃'（Carya illinoinensis）品种和嫁接在Pointe Coupee教区'Stuart'砧木上'糖果'山核桃的嫁接品种比较了Fosphite的叶面施用效果〜将山核桃sc（Fusicladium effusum G.Winter）上的R，Rampart〜R，Phostrol〜R和Nutri-phite〜R亚磷酸产物转至常用商业杀菌剂的标准轮换，并确定Fosphite〜R，Rampart在土壤中的应用〜R，Phostrol〜R和Nutri-phite〜R可在2011-2012年提供任何防止山核桃结ab感染的保护措施。就作物损失和控制支出而言，山核桃结ab是路易斯安那州山核桃上最重要的疾病。亚磷酸容易被植物吸收，并通过木质部和韧皮部移位。虽然大多数山核桃杀菌剂是叶面施用的，但在土壤施用后，亚磷酸酯的系统性运动可能会发生。如果在土壤上施用亚磷酸酯可以成功地提供保护斑点病的能力，那么买不起昂贵喷雾设备的房主和商业种植者可以提高其坚果品质，产量和收入。 2011年的干旱条件降低了2011年山核桃结ab的发病率，但2012年出现了严重的结ab压力。与叶面施肥相比，土壤施用亚磷酸酯类杀菌剂的树木患病率更高。叶面施用亚磷酸酯类杀菌剂可以很好地控制山核桃结ab，应考虑将其列入商业杀菌剂轮换中。在本研究中使用的化学速率下，在土壤中施用亚磷酸酯类杀菌剂不能提供足够的保护作用，以防止山核桃结ab。 “ Candy”和“ Desirable”的数据表明，在结sc压力低的情况下，土壤施用的亚磷酸可能提供了一些保护，但当结ab压力严重时，与对照树相似，其感染也很普遍。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号