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首页> 外文期刊>Plant Pathology Journal >Phosphonate (PO3-) effectiveness against Phytophthora cinnamomi Rands on Thryptomene calycina, Banksia grandis and Banksia spinulosa.
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Phosphonate (PO3-) effectiveness against Phytophthora cinnamomi Rands on Thryptomene calycina, Banksia grandis and Banksia spinulosa.

机译：膦酸酯（PO3-）对拟南芥，山龙眼和山龙眼中的疫霉菌兰特有效。

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摘要

The present study shows that potassium phosphonate has been proven to slow down the growth rate of P. cinnamomi in in vitro. Phosphonate drench as low as 1 g L-1 was effective in protecting Thryptomene calycina, Banksia grandis and B. spinulosa in pot and field trials. In glass house trials, concentrations as low as 1 g L-1 (drench) significantly suppressed the P. cinnamomi population. Concentrations over 2 1/2 g L-1 were phytotoxic to all plant species tested. The most sensitive species was B. spinulosa. Phosphonate (5 g L-1) killed all B. spinulosa plants in seven weeks, therefore it must be used with a great care. Phosphonate treatment alone was effective protecting plants from disease in the field, but did not result in high plant health. Despite new root growth in pot trials after seven weeks, poor growth was commonly observed on T. calycina after 14 months in field trials. This suggests that phosphonate is not suitable as sole application particularly for the long term. A combination of phosphonate with compost as well as antagonist as an integrated management will be a good alternative for P. cinnamomi management in the future..
机译：目前的研究表明，已证明膦酸钾可减缓体外肉桂对虾的生长速度。在盆栽和田间试验中，低至1 g L-1的膦酸盐浸透有效保护了柳杉花萼，山龙眼和菠菜芽孢杆菌。在温室试验中，低至1 g L-1（浓度）的浓度可显着抑制肉桂假单胞菌种群。超过2 1/2 g L-1的浓度对所有受测植物具有植物毒性。最敏感的物种是B. spinulosa。膦酸酯（5 g L-1）在7周内杀死了所有的棘孢芽孢杆菌植物，因此必须非常小心地使用它。单独使用膦酸盐处理可以有效保护植物免受田间疾病的侵害，但并不能提高植物健康水平。尽管七周后的盆栽试验中出现了新的根系生长，但在田间试验中经过14个月后，通常在凯莉丝锥虫上观察到生长不良。这表明膦酸酯不适合单独使用，特别是从长期来看。膦酸盐与堆肥以及拮抗剂的组合以及综合管理将是将来对肉桂体育的一个很好的选择。

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