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首页> 外文期刊>Revista Brasileira de Fruticultura >'Tropical': uma nova sele??o de tangerina 'Sunki'
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'Tropical': uma nova sele??o de tangerina 'Sunki'

机译：'Tropical'：新的橘子选择'Sunki'

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摘要

Located in Cruz das Almas, BA, Brazil, the Citrus Breeding Program of Embrapa Cassava and Fruits has activities regarding to the development of new rootstocks better adapted to tropical conditions, including controlled hybridizations aiming the use of the large genetic variability found in Citrus and related genera, introduction of new citrus varieties from several regions in the country and from abroad, as well as selection of nucellar clones related to traditional rootstocks that present desirable agronomic characteristics which are different from the variety pattern. The present work refers to studies on this last research line, concerning the evaluation of 20 selections of 'Sunki' mandarin, which the main objective was to identify individuals showing fruit production with seed number higher than the average seed number commonly found on that rootstock. Analyses were carried out on the following characters: average number of seeds per fruit and embryos per seed, variation in the range of embryo number per seed, percentage of polyembryony and embryo size. The results allow to recommend 'Tropical' selection of 'Sunki' mandarin, as alternative to use in rootstock diversification programs, under conditions in which that mandarin is well adapted, mainly due to its higher number of seeds per fruit (18.7) and predictable uniformity of seedlings as a result of its high percentage of polyembryony, almost 100%.
机译：Embrapa木薯和水果柑橘育种计划位于巴西BA的Cruz das Almas，开展有关开发更适应热带气候条件的新砧木的活动，包括针对性杂交，目的是利用柑橘及其相关植物的巨大遗传变异性。属，从该国几个地区和国外引进新的柑橘品种，以及与传统砧木相关的，具有理想农艺特性的，不同于品种型式的核细胞克隆的选择。目前的工作是针对这最后一个研究领域的研究，涉及对“ Sunki”普通话的20个选择的评估，其主要目的是确定个体显示出的果实产量高于种子通常在该砧木上发现的平均种子数的果实。根据以下特征进行分析：每个果实的平均种子数和每个种子的胚数，每个种子的胚数范围，多胚百分比和胚大小。结果允许推荐“ Sunki”普通话的“热带”选择，作为砧木多样化计划的替代品，条件是该普通话适应性强，这主要是因为每个水果的种子数量更多（18.7）和可预测的均匀性的种子，因为其多胚百分比很高，几乎100％。

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