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Limiting brown rot incidence in peach with tree training and pruning

机译：通过树的修剪和修剪限制桃的褐腐病发生率

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Introduction. To limit peach brown rot incidence in a mid-season peach orchard cv. 'Conquise', three combinations of tree training and pruning treatments were assessed: open vase training with conventional pruning (Control); open vase with centrifugal pruning (CentP); vertical axis training with centrifugal pruning (Axis). Materials and methods. The test orchard was divided into four blocks, each with the three tree management treatments in a randomized complete block design. Brown rot incidence as well as fruit production and quality were assessed over five successive years. Results and discussion. The lowest brown rot incidence values were detected under Axis and the highest under Control, with values for CentP being intermediate. The reduced incidences under CentP and Axis training were observed around two weeks before fruit maturity and were maintained until post-harvest storage. Compared to the Control, CentP and Axis resulted in higher trunk cross sectional areas, yields and monetary returns. CentP and Axis also tended to enhance peach internal quality, i.e., increase of total soluble solids, but work time devoted to pruning and thinning under CentP and Axis was greater than for the Control. Conclusion. Appropriate tree management, a vertical axis training system and centrifugal pruning, appears to decrease peach disease sensitivity. This could result in reduced use of pesticide sprays for brown rot control.
机译：介绍。为了限制桃园中季桃的褐腐病发生率。 “征服”，评估了树木训练和修剪处理的三种组合：常规修剪的开放花瓶训练（对照）;打开带有离心修剪功能的花瓶（CentP）;垂直修剪与离心修剪（Axis）。材料和方法。将测试果园分为四个块，每个块在随机完整块设计中进行三种树木管理处理。连续五年对褐腐病发病率以及水果产量和品质进行了评估。结果与讨论。在“轴”下检测到最低的褐腐发生率，在“对照”下检测到最高，CentP值处于中间值。在水果成熟前两周左右，可以观察到在CentP和Axis培训下发病率降低的情况，并且这种现象一直持续到收获后的储存。与对照相比，CentP和Axis导致树干横截面面积，产量和货币收益更高。 CentP和Axis也倾向于提高桃子的内部品质，即增加总可溶性固形物，但是在CentP和Axis下用于修剪和变薄的工作时间比对照大。结论。适当的树木管理，垂直轴训练系统和离心修剪似乎降低了桃树对疾病的敏感性。这可能导致减少使用农药喷雾剂防治褐腐病。

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