关键词: 外泌体, 外泌体, 卵母细胞, 卵泡, 外囊泡, 卵丘细胞

Abstract: This paper aims to provide scientific basis about meteorological theory for the sustainable development of the production in solar greenhouse in Shouguang City. Through statistic analysis on several external meteorological factors such as the winter air temperature from 1959 to 2014, sunshine duration, wind speed, weather conditions and so on that influence the solar greenhouse production in Shouguang City, it was found that the air temperature was obvious on an increasing trend, and low temperature days were decreasing. It indicated that the cold degree was reducing in winter in Shouguang City, and the abnormal mild months and the years with mild winter frequently occurred, which provided sufficient heat resources for the development of solar greenhouse. The wind speed in winter was on a decreasing trend, which reduced the heat transfer coefficient on the surface of greenhouse and reduced the loss of heat in the greenhouse when the heat inside and outside exchanged. The decrease of sunshine duration and sunny days in winter in Shouguang City and the increase of cloudy days and foggy days were adverse factors for the development of solar greenhouse production, but the decrease of snowing days and increase of temperature made up the diverse effect caused to solar greenhouse production by the decrease of sunshine duration. By comprehensive analysis, the weather conditions for developing the solar greenhouse production in winter in Shouguang City were relatively good.