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首页> 外文期刊>Australian Journal of Crop Science >Effect of chemical thinning using 6-benzyladenine (BA) on Maciel peach (Prunus persica L.)
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Effect of chemical thinning using 6-benzyladenine (BA) on Maciel peach (Prunus persica L.)

机译：使用6-苄腺嘌呤（BA）化学稀释对Maciel桃（Prunus persica L.）的影响

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High effective peach fruit set results in an excessive amount of fruits, requiring thinning accomplishment, which is a manual practice and demands specialized labor, raising production costs. In this sense, chemical thinning may be an alternative to improve the peach production chain. The objective of this work was to evaluate the efficiency of 6-benzyladenine (BA) on chemical thinning and the effect of different BA dosages on peach production and color characteristics of 'Maciel' fruits. Treatments consisted of plants without thinning (Control), sprayed BA at doses of 100 mg L~(-1) , 200 mg L~(-1) and 400 mg L~(-1), applied 45 days after full bloom (DAPF) and hand thinning at 45 DAPF. The applications of different dosages were carried out by spraying, using backpack spraying equipment. Percentage of thinning abscission, number of fruits per plant, yield per plant, fruit mass, color and average fruit diameter were evaluated. The doses of 200 and 400 mg L~(-1) BA for thinning increased the percentage of fruit abscission and fruit mass. The doses of 400 mg L~(-1) BA presented lower yield per plant, but fruits with higher average mass. Increasing BA dose reduced the number of fruits per plant. Hand thinning and 400 mg L~(-1) BA resulted peach fruits with larger diameter. BA application to thin peaches did not alter the fruit skin color. Therefore, BA may be a chemical thinning alternative for 'Maciel' peach cultivar, because it reduces the time of thinning in plants when compared to manual thinning. For an efficient chemical thinning with BA the product dose must be taken into account, along with climatic conditions and the cultivar.
机译：高效的桃子坐果会导致过多的水果，需要稀疏完成，这是一种人工操作，需要专门的人工，从而提高了生产成本。从这个意义上讲，化学稀释可以替代桃子生产链。这项工作的目的是评估6-苄基腺嘌呤（BA）对化学稀释的效率，以及不同BA剂量对桃的产量和'Maciel'果实颜色特征的影响。处理包括不间伐的植物（对照），在开花后45天施药，分别喷洒100 mg L〜（-1），200 mg L〜（-1）和400 mg L〜（-1）的BA。 ），并以45 DAPF的速度变薄。使用背包喷雾设备通过喷雾进行不同剂量的施用。评价了疏果率，单株果实数，单株产量，果实质量，颜色和平均果实直径。 200和400 mg L〜（-1）BA的稀疏剂量增加了果实脱落的百分比和果实质量。 400 mg L〜（-1）BA的剂量单株产量较低，但果实平均质量较高。增加BA剂量减少了每株植物的果实数量。手工稀疏和400 mg L〜（-1）BA导致桃果实直径更大。 BA应用于薄桃子并没有改变果实的肤色。因此，BA可能是'Maciel'桃品种的化学间苗替代品，因为与手动间苗相比，它减少了植物间苗的时间。为了使用BA进行有效的化学稀释，必须考虑产品剂量以及气候条件和品种。

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