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首页> 外文期刊>Revista Brasileira de Fruticultura >Crescimento vegetativo de macieiras 'Fuji Suprema' sob influência da época de aplica??o de proexadione cálcio
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Crescimento vegetativo de macieiras 'Fuji Suprema' sob influência da época de aplica??o de proexadione cálcio

机译：钙前摄二酮的影响下“富士至”苹果树的营养生长

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The use of plant growth regulators that act on the biosynthesis of gibberellins, as proexadione calcium, may enable proper balance between vegetative growth and fruiting to maximize production indexes. However, the response of this plant growth regulator depends on the pattern of shoot growth. Thus, the aim of this study was to evaluate the effect of application times of prohexadione calcium on vegetative growth control of apple 'Fuji Suprema', in the climatic conditions of Southern Brazil. It was evaluated different application times of prohexadione calcium at 330 g ha-1, in two growing seasons, using randomized complete block design with ten replication of a plant. In the 2008/2009 growing season were evaluated six times of application (28, 58, 88, 118, 148, and 178 DAFB, days after full bloom), and in the 2009/2010 season were evaluated seven times (20, 50, 80, 110, 140, 170, and 200 DAFB), both compared with check treatment (no application). The prohexadione calcium sprayed in a single application at 330 g ha -1 until 28 days after full bloom may reduce the number, weight and average length of pruned shoots in 'Fuji Suprema'apple trees, but in conditions of excessive vegetative growth have not effect. The use prohexadione calcium at 330 g ha-1 in a single application, regardless of timing application has not effect on fruit production of 'Fuji Suprema' apples.
机译：使用对赤霉素进行生物合成有作用的植物生长调节剂（如普鲁前酮钙）可以使营养生长和结实之间达到适当的平衡，从而使生产指标最大化。但是，这种植物生长调节剂的反应取决于枝条的生长方式。因此，本研究的目的是评估在巴西南部的气候条件下，前己二酮钙的施用时间对苹果'Fuji Suprema'的营养生长控制的影响。使用随机完整的区组设计和植物的十次复制，评估了在两个生长季节中，己二酮钙在330 g ha-1上的不同施用时间。在2008/2009生长季，评估了六次施用（盛开后的天数分别为28、58、88、118、148和178 DAFB），而在2009/2010季节中，评估了七次施用（20、50， 80、110、140、170和200 DAFB），两者均与对照治疗（未应用）进行了比较。一次开花后在330 g ha -1上喷洒一次己二酮钙，直到盛开后28天，这可能会减少'富士至'苹果树上修剪的枝条的数量，重量和平均长度，但在营养生长过度的情况下没有作用。一次施用330 g ha-1时使用原己二酮钙，无论定时施用如何，都不会影响“ Fuji Suprema”苹果的果实产量。

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