Studies on Active Influence of VA Endomycorrhiza on the Plants

In order to investigate the influence of the VA mycorrhiza isolated from root soil of Litchi on the tissue cultural seedling of Eucalyptus urophylla and Zea mays seedling, the VA preparation was inoculated and a strong growth response of the two plants to the infection of the VA mycorrihizal fungus exist. The result showed that the 3 monthes' inoculated Eucalyptus urophylla seedling was 34.2% higher in height, 21.1% wider in stem diameter and 29.5% more in dry root mass than those of the control and the similar result was obtained in the Zea mays seedling. The vesicles and arbuscules special to the VA mycorrhiza were observed in the cortex cells of the young roots from the inoculated plants but without from the same position of the control. It is suggested that the VA endomycorrhiza improves the growth of the tested plants significantly and has its practical value in development.