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在德宏地区,对春砂仁产量的形成起主要作用的蜜蜂有彩带蜂、隧蜂、中华蜜蜂、熊蜂、小蜜蜂、排蜂。其中彩带蜂、熊蜂、排蜂的有效传粉率高,小蜜蜂、隧蜂、中华蜜蜂次之。它们的数量、分布受生态环境、气候条件、砂仁种植面积等的影响,呈动态变化。春砂仁的自然授粉由几种蜜蜂共同进行,蜂多,传粉机率则高。全天蜂次与采花次,采集高峰时间每小时平均蜂次与传粉率,均呈极显著正相关。应用直线回归方程,可推算春砂仁花期是否具备足够传粉动力。观察结果表明,传粉率达90%以上的指标,是每平方米面积内当天开花50~70朵,采集高峰时间每小时出现钻花采集的蜜蜂20~30次。云南野生中华蜜蜂适应性强,生态类型多,定向筛选、繁育传粉效果好的蜂群,则可望解决初花期或缺少传粉昆虫地区的春砂仁授粉问题。
In Dehong, the bees that play a major role in the formation of spring amomum have ribbon bee, tunnel bee, Chinese honey bee, bumble bee, small bee and row bee. Including ribbon bee, bumblebee, row pollination effective pollination rate, small bee, tunnel bees, Chinese bees second. Their quantity and distribution are influenced by the ecological environment, climatic conditions and planting area of Amomum villosum, and they are dynamically changing. Spring Amomum natural pollination carried out by several bees, bees more, pollination rate is high. The results showed that there was a significant positive correlation between the average number of bee per hour and the pollination rate at the peak time. Applying the linear regression equation, we can calculate whether the flowering motility of pollen grains is sufficient. Observations show that the pollination rate of more than 90% of the indicators, the area per square meter within the day flowering 50 to 70, the peak acquisition time per hour drill collected bees 20 to 30 times. Yunnan wild Chinese honey bee adaptable, ecotype, directional screening, breeding pollinating good bee colony, is expected to solve the initial flowering or lack of pollination of spring pollen area pollination problems.