【摘要】 对山楂开花习性及其开花与温湿度的关系进行了观察与观测。实验结果如下:山楂在—天中开花时间在4:00至14:00之间,花蕾开放84%以上在6:00~12:00之间;山楂开花的最适温度为16~18℃,要求的湿度为60%~70%。更多还原

【Abstract】 The habit of blooming and the relations among blooming temperature and humidity of Whitethorn were observed.The results indicated that in a day,the blooming time of Whitethorn was from 4:00 to 14:00,and the blooming time was from 6:00 to 12:00 when more than 84 percent blossom buds effloresced.The best seernly temperature of blooming was from 16℃ to 18℃,and the needful humidity was from 60 Percent to 70 percent更多还原