摘要
为给杂交小麦强优势组合创制及高产栽培技术研究提供参考依据,笔者总结了杂交小麦产量形成过程中的产量构成及其贡献、光合优势、物质生产、群体结构建成、源库关系、根系发育等生物学规律,提出了通过挖掘穗粒数及粒重潜力、扩大库源比、提高资源利用效率、实施精量栽培等进一步挖掘小麦强杂种优势的策略,以期为加速杂交小麦走向生产应用提供指导。
In order to provide reference for the creation of strong advantage combinations and high-yield cultivation technology of hybrid wheat, the author summarizes the biological rules, which include yield components and its contributions, photosynthetic heterosis, matter production, population structure, source-sink relationships, root development and so on, in the process of yield formation of hybrid wheat. The author puts forward suggestions on further exploiting wheat heterosis, including fully tapping the potential of grain number per spike and 1000-grain weight, increasing sink-source ratio, improving use efficiency of resource,application of precision cultivation and so on, hoping to provide a guidance for accelerating the application of hybrid wheat.
作者
张胜全
Zhang Shengquan(Beijing Engineering Research Center for Hybrid Wheat,Beijing 100097)
出处
《中国农学通报》
2019年第6期1-5,共5页
Chinese Agricultural Science Bulletin
基金
北京市自然科学基金"水分逆境下杂交小麦耐受响应与水分高效利用研究"(6174039)
北京市农林科学院科技创新能力建设专项"杂交小麦节水栽培关键技术研究与示范"(KJCX20151403)
北京市农林科学院院(所)级科技创新团队"杂交小麦育种科技创新团队"(JNKYT201606)
国家科技支撑计划"小麦商业化育种技术研究与示范"(2014BAD01B05)
关键词
杂交小麦
产量形成
产量构成
光合生产
群体结构
源库关系
hybrid wheat
yield formation
yield components
photosynthetic production
population structure
source-sink relations
