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取材于有特殊经济价值、常异花授粉作物多花菜豆，研究基因库中种子繁殖更新方法。连续３年，选用４个品种，设２５～２００株５种不同群体，采用人工授粉等５种授粉方法，以自然条件下风、虫自然传粉为对照。从农艺性状调查，染色体观察及同工酶分析方面进行研究。人工授粉后无变异现象，但结实率很低，只有２．１％左右，且成本昂贵；群体内昆虫自然传粉结实好，幼苗和籽粒变异率为１．３％和１．２％；单花序或单花套袋自交基本不结实，只有个别品种能结实（１％～２％）；对照生长最好，结实率最高，变异率也最大（幼苗１．７％、籽粒１．９％）；全封闭网棚蜜蜂传粉生长正常，变异率低（幼苗０．４％、籽粒０．７％），成本也较低；全封闭网棚自然传粉的产量低，折合每公顷只有３７８ｋｇ，其成本高于网棚放蜂者。从而明确了在内蒙古呼和浩特繁种，自然条件适宜可减轻选择压力；以全封闭网棚蜜蜂传粉效果最佳，可减少变异频率，防止外来花粉掺入；其群体大小一般以５０株为宜，是繁殖更新多花菜豆基因库种子切实可行的方法。
Based on a special economic value, often overfloral pollination flowering beans, to study gene pool seed regeneration method. For 3 years in a row, 4 varieties were selected, 5 different groups of 25 ~ 200 strains were set up. Five kinds of pollination methods were used, such as artificial pollination. Natural pollination under natural conditions was used as control. From agronomic traits investigation, chromosome observation and isozyme analysis. No variation after artificial pollination, but the seed setting rate is very low, only about 2.1%, and the cost is high. In the group, the natural pollination of the insect is good and the mutation rate of seedling and seed is 1.3% and 1.2% (1% ~ 2%). The control grew best with the highest seed setting rate and the highest mutation rate (seedling 1.7% and grain 1.9%), ; Closed bee pollination pollination growth is normal, the mutation rate is low (0.4% of seedlings, 0.7% of grain), the cost is lower; fully closed shed natural pollination low yield, equivalent to only 378kg per hectare, the cost Beeper above the shed. It is clear that breeding in Hohhot, Inner Mongolia, suitable for natural conditions can reduce the pressure of choice; the whole closed canopy bee pollinating the best, can reduce the frequency of mutation, to prevent the incorporation of foreign pollen; its population size is generally 50 is appropriate, is Reproductive update method of flowering bean seed bank seeds feasible.