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Collecting and evaluation of germplasm of spiked pepper from Brazilian Amazon

机译：巴西亚马逊胡椒加标种质资源的收集与评价

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Spiked pepper (Piper aduncum L.) is an aromatic plant species with high essential oil production. It is a species that occurs abundantly in the Brazilian Amazon. Its essential oil has exploitable biological properties in the human health and agriculture. Aiming to study its germplasm toward future use in genetic breeding programs, collecting was carried out (inflorescences, cuttings, leaves and thin branches) in ten provenances from the Brazilian Amazon. Twelve morphoagronomic traits were determined to take the data: number of leaves by branch, length of leaf, width of the leaf, circumference of the older branch, height of the plant, number of orthotropic branches, number of plageotropic branches, length of the internodes, number of spikes per branches, yielding of oil, content and production of dillapiole, as well as data on the environment and populations of spiked pepper. The inflorescences and cuttings were encoded and sent for the Federal Rural University from Pará State (UFRA), Brazil, for propagation. The leaves and thin branches were sent for the Emílio Goeldi Museum, from Pará State (MPEG) for extraction of essential oil (hydrodistillation). Estimators of amplitude of variation, mean, standard deviation and coefficient of variation were utilized to study the phenotypical variability. The morphoagronomic traits of largest variability were number of orthotropic branches, number of spikes per branch, circumference of the older branch and the content and production of dillapiole. This species has adapted to many different environments of vegetation, soil, climate, relief and drainage becomming easy the domestication and cropping. There is morphoagronomic variability pleasing the selection and genetic breeding.
机译：尖椒（Piper aduncum L.）是一种芳香植物，具有很高的精油产量。它是在巴西亚马逊河中大量繁殖的物种。其精油在人类健康和农业中具有可利用的生物学特性。为了研究其种质，以便将来用于遗传育种计划，从巴西亚马逊地区的十个种源进行了采集（花序，插条，叶片和细枝）。确定了十二个形态农艺性状以获取数据：按树枝划分的叶片数量，叶片长度，叶片宽度，较旧分支的周长，植物的高度，正交异性分支的数量，多变性分支的数量，节间长度，每个分支的穗数，油的产量，莳萝胺的含量和产量，以及有关环境和穗胡椒种群的数据。花序和插条被编码并从巴西的帕拉州（UFRA）发送给联邦农村大学进行繁殖。树叶和细树枝从帕拉州（MPEG）送往EmílioGoeldi博物馆，以提取精油（加氢蒸馏）。利用变异幅度，均值，标准偏差和变异系数的估计量来研究表型变异性。变异性最大的形态农艺学特征是正交异性分支的数量，每个分支的穗数，较旧分支的周长以及莳萝酚的含量和产量。该物种已经适应了许多不同的植被，土壤，气候，救济和排水环境，变得易于驯化和种植。存在形态农艺学变异性，这使选择和遗传育种变得令人满意。

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