提高红玉杏幼树坐果率的研究红玉杏是山东省名优特产，但幼树期花虽多，结果很少或不结果（坐果率０～０．１４％）。为了解决此问题，先后从花期温度、降雨、肥水管理、花期喷激素、花的类型等５个方面调查观察，前４项虽程度不同的有所影响，但主要原因是花的质量，即一... Study on improving the fruit setting rate of safflower apricot seedlings Hongyu apricot is a famous specialty in Shandong Province. However, although there are many saplings in the sapling stage, there are few or no results (fruit set rate 0 ~ 0.14%). In order to solve this problem, five aspects of flowering temperature, rainfall, fertilizer and water management, anthesis hormones and flower types were investigated. The first four items were affected by different degrees, but the main reason was flower quality ...