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Arbuscular mycorrhizal fungi can not only enhance the resistance of plants and disease resistance, but also to improve the nutritional status of plants, significantly improve the yield and quality, while not pollute soil environment, avoid using chemical pesticides and soil treatment on the destruction of the environment. Arbuscular mycorrhizal fungi must rely on host plants to reproduce, thus limiting inoculants mass production and application, which is presented in vegetable seedling stage inoculation agents that come into play mycorrhizal seedlings promoting effect of mycorrhizae. Currently arbuscular mycorrhizal fungi on growth-promoting effect in sterilization pot tests are mostly carried out under such ideal conditions, few reports on field application, which has to a certain extent, limit the development of mycorrhizae. Therefore, this experiment facility important fruit and vegetable - cucumber as test materials, research arbuscular mycorrhizal fungi on cucumber growth and fruit quality, for the application of arbuscular mycorrhizal fungi provide a theoretical basis for cucumber production. A cucumber as test materials, with garden soil and sand in different proportions and vermiculite as a substrate processing arbuscular mycorrhizal fungi Glomus versiforme (abbreviated GV) and non-vaccinated CK (take the same amount of sterile sand) . The results showed that mycorrhizal fungus infection rate in garden soil and sand in different ratios higher processing ~ 56.15% to 48.48%, vermiculite processing lower infection rate was 37.82%. Matrix treatment 2 (garden soil: sand = 1:2) of mycorrhizal growth-promoting effect is the most significant, with the control than in the leaf area, dry weight, seedling index, improved respectively 44.09%, 36.46% and 83.62% is ideal for cucumber seedling mycorrhizal matrix. In addition, in the garden soil inoculated with arbuscular mycorrhizal fungi also showed good promoting effect. 2 to Glomus versiforme (referred GV), Glomus mosseae (abbreviated GM), Glomusintraradices (abbreviated GI) three kinds of mycorrhizal fungi and their mixed cultures GM GV, GM GI, GV GI, GM GV GI inoculated cucumber for mycorrhizal nursery, greenhouse mycorrhizal cucumber on growth, yield and quality of research. The results showed that: inoculation of arbuscular mycorrhizal fungi can form mycorrhizae with cucumber, and a higher infection rate was 41.74% ~ 55.69%. GV, GM, GM GV, GM GV GI and GV GI is the dominant species of cucumber, can significantly promote the growth and development of cucumber, compared with control seedlings index increased by 58.14% ~ 123.6%, pre-production increased 21.71% ~ 37.87 %, total output increased 19.72% ~ 34.41%. Mycorrhizal cucumber leaf area and dry matter weight of explanation: the role of mycorrhizal growth period as the extension of its growth-promoting effect is gradually reduced, ie mycorrhizal and non-mycorrhizal differences gradually reduced, but on yield, quality and other aspects of the impact remains. 3 Compared with the control, GM GV and GV GI inoculation can significantly improve cucumber fruit Vc content, were increased by 22.84%, 21.95%; GV, GV GI, GI treatment can significantly improve cucumber fruit soluble sugar content, respectively. cK increase than u. 79%, m. Zo% and 8.25%; vaccination GV, GM + G! The bacteria treatment, compared with the control can improve the content of amino acids in the fruit 47.66% and 23.19%; protein content also increased 17.67% compared to the control ~ 34.79%. From different strains of the same amino acid and protein expression can be speculated that mycorrhizal nitrogen metabolism by regulating the activity of enzymes affect hydrogen amino acid and protein synthesis and metabolism. Different mycorrhizal cucumber fruit quality is different, so in practical applications mycorrhizal should consider the use of mixed cultures. Four trials arbuscular mycorrhizal fungi were significantly increased net photosynthetic rate of cucumber seedlings, compared with no vaccination increased 14.58% ~ 35.5%. Arbuscular mycorrhizal fungi mainly by increasing \Arbuscular mycorrhizal fungi can significantly enhance the cucumber root activity, compared with no vaccination increased 10.53% ~ 42.11%, thereby promoting leaf photosynthetic products transported to the roots, to meet the needs of mycorrhizal growth of photosynthetic products timely shipped out will increase photosynthetic rate. GV + GI, GM + GV + GI two inoculated leaf chlorophyll content was significantly higher than the control; chlorophyll a content were increased by 12.41o and 15.47o, chlorophyll b 13.74O and 15.53% respectively. Mycorrhizal cucumber through increased photosynthetic rate, to increase the accumulation of photosynthetic products, to promote the growth of cucumber, increase production and improve quality laid physiological basis.
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