• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>The Journal of Horticultural Science & Biotechnology >Pollinator effectiveness, breeding system, and tests for inbreeding depression in the biofuel seed crop, Jatropha curcas.
【24h】

Pollinator effectiveness, breeding system, and tests for inbreeding depression in the biofuel seed crop, Jatropha curcas.

机译：生物燃料种子作物麻疯树的授粉媒介有效性，育种系统和近亲繁殖测试。

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Experiments were conducted to determine factors that could influence seed production in the potential biofuel seed crop, Jatropha curcas. Controlled pollination experiments in a South African plantation of J. curcas showed that plants required pollinator visits for seed production and were genetically self-compatible. Pollen-supplementation did not lead to increased fruit set, suggesting that seed production in the study population was not pollen-limited. Both male and female flowers produced nectar and were highly attractive to honeybees. These insects were effective pollinators of J. curcas, as shown by experiments in which flowers exposed to single or multiple visits by honeybees set significantly more fruit than those from which visits had been prevented. Self-pollination led to marginally lower levels of fruit set relative to cross-pollination. However, fruits arising from self-pollination were almost as numerous and as large as those arising from cross-pollination. Progeny from selfed plants had significantly shorter roots than the progeny of out-crossed plants. However, in general, there was little evidence of inbreeding depression. These results provide empirical evidence that honeybees are effective pollinators of J. curcas and indicate that promotion of cross-pollination does not have to be a priority in orchard management for fruit yield.
机译：进行了实验以确定可能影响潜在生物燃料种子农作物麻风麻疯树种子生产的因素。南非人工林的授粉实验curcas 表明植物需要传粉媒介访问才能生产种子，并且具有遗传自交性。花粉的补充并未导致坐果增加，这表明研究人群的种子生产不受花粉限制。雄花和雌花都产生花蜜，并且对蜜蜂极具吸引力。这些昆虫是 J的有效传粉者。 curcas ，如实验所示，其中蜜蜂暴露于单次或多次访问下的花朵所产生的果实要比阻止访问的花朵多得多。与异花授粉相比，自花授粉导致坐果水平略低。但是，自花授粉所产生的果实几乎与异花授粉所产生的果实一样多，也一样大。自交植物的后代的根比异交植物的后代明显短。但是，总的来说，几乎没有近亲抑郁的迹象。这些结果提供了经验证据证明蜜蜂是J型传粉的有效传粉者。并指出，在果园管理中提高异花授粉并不是必须的优先事项。

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