温室桃、草莓引进壁蜂授粉好

来源 :河北果树 | 被引量 : 0次 | 上传用户:andymei
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
塑料大棚日光温室桃、草莓由于花期正处于早春低温阶段,棚内无法进行自然风流动而达传粉目的,因此,自然授粉坐果率低,且草莓畸形果多。引进壁蜂在桃和草莓初花期释放,经人工控制温度而使其在初花期羽化。结果表明,经壁蜂传粉的大棚桃坐果率由自然授粉的35%上升到... Plastic greenhouse solar greenhouse peach, strawberry flowering is in the early spring low temperature stage, the shed can not be carried out by the natural wind flow of the purpose of the purpose of pollination, therefore, the natural pollination rate is low, and the fruit and more strawberry deformity. The introduction of wall bee and peach and strawberry early flowering release, by artificial temperature control and its emergence in the early flowering. The results showed that the wall fruit bee pollinated by wall bee rose fruit rate from 35% of natural pollination rose to ...
其他文献
目的:探讨安定中毒的临床护理分析和效果.方法:将2019年4月至2020年4月我院收治的42例急性安定中毒患者纳入研究,所有患者入院后抢救及时均挽回生命,在患者治疗期间对其心理
  Taylors power law (Taylor 1961,Nature,189:732-735) has been found to govern the population abundance distributions of single species in macro-ecology,and he
会议
  The purposeThe human gut microbiota provides a great variety of functions that are not encoded in our own genomes but may be essential for human health.For
会议
一、总的建议1.所有国家应该制定协调、有效和经济的,实现消灭、消除、减少疾病和提高接种率这四项目标的专门行动计划。各个国家和地区应根据资源情况和优先重点,开展扩大
  Reviewing many papers about the clinical trail of microecologics ZhengChang-Sheng(ZCS) in pediatrics since 1990s.It is concluded that,from the clinical trai
会议
在许多场合,特别是面对新发的危重传染病疫情,感染病科医师不仅是一名医者,更是一名无畏的白衣战士。面对疾病的挑战,我们需要从制度和机制方面人手,推进感染病专科医师培养,实行有
  戊型肝炎(hepatitis E,HE)是由戊型肝炎病毒(hepatitisE virus,HEV)感染引起的疾病。文章对戊型肝炎病毒概念进行了详细的介绍,同时对该病毒的临床症状及地区分布进行了简单
会议