Study On The Filtration Of Preponderant AMF And Effects Of AMF On The Drought Resistance Of Passionfruit Cuttings

Passiflora edulis is a sort of perennial evergreen liane which is classified to Passifloraceae, Passiflora L. It is a kind of tropic or semi-tropical fruit, which called" The king of syrup". It has amplitude foreground in the development of Passionfruit, especially in the study and exploitation of new varieties with excellent edible and artifactitious characteristics. At present, Cuttage and tissue-cultured technique are often adopted in nursery-stock cultivation. The seedlings propagated by these methods are influenced easily by environmental stress for their weak rootages, therefore the growth and stress-resistance of seedlings are weak, the yield and quality of fruits are affected.The arbuscular mycorrhiza is a sort of beneficial symbiont which engenders between plant roots and soil fungi during the course of the plant's growth. It is known that the AMF can promote plant growth and improve the plant's ability of resisting environmental stress. Due to the positive effects of AMF, the studies and utilization of AM biotechnology have being paid enormous attention. So, if proper AMF inoculated in passionfruit cuttings and cultivate cuttings with mycorrhizal structures, the growth of passionfruit and the ability of against negative environmental stress will be greatly improved.In our country, a majority of passionfruit bases were set up in arid or semiarid regions. Though passionfruit is a kind of drought enduring plant which has the adaptive ability to drought, it needs a plenty of water for all bearing time. In the prophase of growth, plenty of water is needed for budbeak...