丛枝菌根真菌对不同甜瓜品种产量及营养品质的影响

研究了大棚栽培条件下不同品种甜瓜播种时接种丛枝菌根真菌（Arbuscular mycorrihiza fungus，AM）GM（Glomus mossea-2）和GV（Glomus versiforme）对甜瓜产量和营养品质的影响。结果表明：接菌处理的幼苗在光合速率、根系活力等生理指标上均优于对照；不同品种的单瓜质量均以接种GM的处理为最高；果实硝酸盐和亚硝酸盐含量都有显著性下降，维生素C含量GM处理显著高于对照，但GV处理有所下降。对根系侵染率分析表明，两个供试菌剂中GM为优势菌种，‘丰雷’和‘中蜜5号’为8个供试甜瓜品种中GM的最佳宿主。

Effect of AM Fungi on the Yield and Nutrient Quality of Different Muskmelon Varieties in Greenhouse

The effect of 2 strains AM fungi（GM Glomus mossea-2，GV Glomus versiforme）inoculation on the yield and nutrient quality of 8 different muskmelon varieties were studied under protected cultivation. The results showed that most varieties muskmelon seedlings inoculated with AM fungi grew better than ordinary seedlings，especially in photosynthetic rate and root activity. The single fruit weight of GM inoculation plants might grow bigger than non-mycorrhizal ordinary plants，so the yield of AM muskmelon was increased. The nitrate and nitrite content in AM fruit were significantly decreased than control fruit，but the content of soluble solids，total sugar and vitamin C in AM fruit became higher than control fruit，so the nutrient quality of muskmelon were improved by AM Fungi inoculation. From the root AM fungi colonization ratio between GM and GV，the GM is screened to be the best AM fungi strains to inoculate muskmelon，and the suitable host muskmelon varieties are Fenglei and Zhongmi 5.