三叶木通播种育苗试验

Experiment on Sowing and Seedling Cultivation of Akebia trifoliata

为了提高三叶木通播种育苗效益,采用常温沙藏、自然风干和冰箱冷藏3种种子贮藏方式,研究不同贮藏方式对种子发芽率的影响;对比了撒播、点播和条播3种播种方式,研究不同播种方式对种子出苗率及存活率的影响;分别采用40%、60%遮光度遮阴与全光照处理进行对比试验,研究不同遮阴方式对种苗生长指标的影响。结果表明:常温沙藏处理显著提高了种子的发芽率(90.64%),其次是冰箱冷藏处理(52.39%),而自然风干处理的发芽率最低(21.63%);在播种方式方面,点播处理获得了最高的出苗率(94.47%)和存活率(91.43%),而撒播处理表现最差;遮阴处理显著促进了种苗的生长,60%遮光度处理下的苗高、地径、叶长和叶宽均显著优于40%遮光度及全光照处理。经60%遮光度处理的种苗平均苗高、平均地径、平均叶长及平均叶宽最高,分别为35.15、0.61、8.29和3.33 cm。

In order to improve the efficiency of sowing and seedling cultivation of Akebia trifoliate,the effects of different storage methods on seed germination rate were studied by three kinds of seed storage methods of normal temperature sand storage,natural air drying and refrigerator cold storage.The effects of different sowing methods on seed emergence rate and survival rate were studied by comparing the three sowing methods of broadcast sowing,spot sowing and drill sowing.The effects of different shading methods on seedling growth indexes were studied by comparative experiments on 40%and 60%shade level with full light treatment.The results indicated that normal temperature sand storage significantly improved the seed germination rate(90.64%),followed by refrigerator cold storage(52.39%),while the natural air drying treatment resulted in the lowest germination rate(21.63%).Regarding sowing methods,spot sowing yielded the highest emergence rate(94.47%)and survival rate(91.43%),while broadcast sowing performed the worst.Shading treatment significantly promoted the growth of seedlings,with 60%shading showing superior seedling height,ground diameter,leaf length,and leaf width compared to 40%shade level and full light treatment.Seedlings treated with 60%shade level had the highest average height,average ground diameter,average leaf length,and average leaf width,which were 35.15 cm,0.61 cm,8.29 cm and 3.33 cm,respectively.