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首页> 外文期刊>Ciência Florestal >EFFECT OF CONCENTRATION OF DIFFERENT IBA AND ORIGINS GEOGRAPHICAL IN PARICA STAKES OF ROOTING
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EFFECT OF CONCENTRATION OF DIFFERENT IBA AND ORIGINS GEOGRAPHICAL IN PARICA STAKES OF ROOTING

机译：不同IBA和原产地地理浓度对木瓜生根的影响

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This work aimed at determining the influence of the origin and of the concentration of Indole-3-butyric acid (IBA) over the rooting of paricá cuttings. The origins tested were: Belém (PA), Tucuruí (PA) and Sinop (MT). We obtained seeds from those locations and produced seedlings from which cuttings. The cutting were immersed in IBA solution in the concentrations of 0, 2000 and 3000 ppm (parts per million) for 10 seconds and planted in plastic trays containing vermiculite and coconut fiber as substrate (1:1 v/v). We employed a fully randomized delineation, in a factorial scheme of 3x3 (origins x IBA concentrations) with four repetitions and ten cuttings per part. After 45 days we measured the percentage of rooted cuttings, average number of roots, length of the longer root, percentage of rootless living cuttings, percentage of dead cuttings and percentage of cuttings that produced sprouts. The variance analysis suggested that there were no significant statistical difference between the origins. On the other hand, we verified that the solutions with concentrations of 2000 and 3000 ppm were more efficient for both rooting and root development. The interaction indicated a difference in behavior between the origins, since specimens from Sinop (MT) had lower performance without the IBA, but having a superior response, compared to the other origins, when immersed in the IBA solution. Therefore, it becomes necessary to define the proper concentrations for the rooting of cuttings coming from different geographical locations.
机译：这项工作旨在确定吲哚-3-丁酸（IBA）的来源和浓度对paricá插条生根的影响。测试的来源是：贝伦（PA），图库里（PA）和锡诺普（MT）。我们从这些地点获得种子，并从中收获插条。将插条浸入浓度为0、2000和3000 ppm（百万分之一）的IBA溶液中10秒钟，然后将其种植在以ver石和椰子纤维为底物（1：1 v / v）的塑料托盘中。我们采用3x3（原点x IBA浓度）的析因方案进行了完全随机化的描述，每部分重复4次，每次切割10次。 45天后，我们测量了生根插条的百分比，平均根数，较长根的长度，无根活插枝的百分比，死插枝的百分比以及产生芽的插条的百分比。方差分析表明，起源之间没有显着的统计差异。另一方面，我们验证了浓度为2000和3000 ppm的溶液对于生根和根发育均更有效。交互作用表明来源之间的行为有所不同，因为将Sinop（MT）的样品浸没在IBA解决方案中时，与没有其他来源的样品相比，在没有IBA的情况下性能较低，但响应却更好。因此，有必要为来自不同地理位置的插条生根确定适当的浓度。

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