...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Revista rvore >Sucesso reprodutivo de espécies distílicas de psychotria (rubiaceae) em sub-bosque de floresta atlantica
【24h】

Sucesso reprodutivo de espécies distílicas de psychotria (rubiaceae) em sub-bosque de floresta atlantica

机译：亚特兰蒂卡森林森林精神病菌（Rubiaceae）的生殖成功

获取原文
   

获取外文期刊封面封底 >>

       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The distylous species of Psychotria conjugens, P. hastisepala e P. sessilis (Rubiaceae) are typical of understory shady. It occurs in the largest fragment (194 ha) of semideciduous forest in Vi?osa, Minas Gerais State, southeastern Brazil, where the present study was carried out. The distyly is characterized by the presence of pin (L) and thrum (B) floral morphs in different individual and the dependence on intermorph pollinations (L x B or B x L) of fruit set, is expected to be at balanced proportions (isopleths) of the individuals in the population. The purpose of this study was to determine, for the species mentioned above, the proportion of floral morphs in an area of seven hectares, the dependence on pollinators by testing the intramorph incompatibility (L x L and B x B) by in vivo controlled pollinations; the viability of pollen grains and the existence of grain size dimorphism among floral morphs, and to quantify the production of fruits and seeds per morph. The floral morphs of the species was found in balanced proportions. There was an incompatibility and the viability of pollen grains was high (> 64%). Grains presented dimorphism; the highest diameters were the B. The production of fruits and seeds (one or two) of the morphs of P. sessilis and P. conjugens were similar and in P. hastisepala they were higher in B. In the study area, at the correct conditions, such as habitat, isopleths and the role of pollinator are the factors that seem to promote the reproductive success and therefore the maintenance of local species.
机译：精神病菌伴侣，P. Hastisepala E P. Sessilis（Rubiaceae）的典型物种是典型的林下阴暗。它发生在VI的最大碎片（194公顷）（194公顷）vi？大阪，巴西东南部的Minas Gerais国家进行了本研究的。在不同的单个销（L）和Thrum（b）的花卉中的表现为特征在于不同的个体和依赖性粉粉（L x B或B x L）的水果集，预计将以平衡的比例（Isopleths ）人口中的个人。本研究的目的是为了确定上述物种，通过在体内控制授粉中测试脑子不相容（L X L和B×B），对花粉剂的依赖性的花卉变形依赖性;花粉颗粒的可行性以及花卉变形中晶粒尺寸二态性的存在，并量化水果和种子的产量。在平衡的比例中发现了物种的花卉变形。有不相容性，花粉晶粒的可行性高（> 64％）。谷物呈现二态性;最高直径是B. P.Sessilis和P. Cancugens的晶粒（一两或两种）的生产是相似的，在B.Hastisepala的B.在B.在研究区域，正确条件，如栖息地，别人，以及粉碎机的作用是似乎促进生殖成功的因素，从而维持当地物种。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号