不同遮光度对少叶黄杞实生苗生长的影响

Effects of Different Shading on Seedling Growth of Engelhardtia fenzelii

为探讨遮阳网不同遮光度对少叶黄杞实生育苗生长的影响,分别设置5种处理(即遮光度分别为全光照、30%、50%、70%和90%),每个处理6个重复;同时对少叶黄杞实生苗的发芽率、存活率、苗高、地径等生长指标的影响进行了调查与分析。结果表明:不同遮光度对少叶黄杞实生苗生长的影响均达到显著水平以上,且除苗高生长以90%遮光度的E处理为最高以外,即34.3 cm;发芽率、存活率、地径的生长均以70%遮光度的D处理为最高,分别为54.4%、86.0%和0.34cm。为此,提出了建议:在少叶黄杞实生育苗生产中,综合各因素考虑,尽量采用70%遮光度的遮阳网进行覆盖,更利于提高少叶黄杞实生育苗的经济效益。

To explore sun-shade net different shading degree of Engelhardtia fenzelii from seedling growth,the influence of the test set respectively 5 kinds of processing(that is,the shading degree were respectively,30%,50%,70%and 90%),6 repeat each processing,as well as the Engelhardtia fenzelii west of germination rate,survival rate,seedling height and ground diameter growth indexes such as the influence of the investigation and analysis.The results showed that the effects of shading on seedling growth were all significant,except that the seedling height was the highest in E treatment with 90%shading,i.e.,34.3cm.The highest germination rate,survival rate and ground diameter were 54.4%,86.0%and 0.34cm in D treatment with 70%shading,respectively.Therefore,it is suggested that the shading net with 70%shading degree should be used to cover the seedlings in practice,which is more beneficial to improve the economic benefits of seedling growth of Engelhardtia fenzelii.