PRODUÇÃO DE MUDAS DE MIRTILEIRO E MARACUJAZEIRO-AMARELO COM INOCULAÇÃO DE FUNGOS MICORRÍZICOS ARBUSCULARES

Abstract

The production systems provided in the packaging of products, especially in the protection of organic products. Symbiosis with mycorrhizal fungi is a potential tool, as it can improve plant access to nutrients from organic sources. Thus, the objective of this work was to evaluate the effect of inoculation of arbuscular mycorrhizal fungi of the species Gigaspora rosea and Glomus clarum on the development of blueberry and yellow passion fruit seedlings. For the experiment with yellow passion fruit, the treatments used were as follows: control (without inoculation), seedlings inoculated with G. rosea; seedlings inoculated with G. clarum; and seedlings inoculated G. clarum + G. rosea. After seed germination, the seedlings were transplanted to a substrate composed of soil and washed sand (1:1 v/v) previously autoclad and kept in a greenhouse for 160 days. For the blueberry experiment, the experiment was carried out in a 4 x 2 factorial scheme, the first factor being inoculations with arbuscular mycorrhizal fungi (no inoculation, G. rosea, G. clarum, G. rosea + G. clarum); and the second factor the application of IBA (with or without application of 2000 mg L-1 of IBA). Cuttings were prepared with four buds and planted in pots containing substrate composed of soil and washed sand (1:1 v/v) previously autoclad and kept in a greenhouse for 660 days. Catalysts, after increasing enzyme height, are increasing survival activity, stakes in length and volume of the protein (POD), relative enzyme (POD) augmentation system, and SPAD index, SPAD index, efficiency, dependence and colonization mycorrhizal spore number and basal soil respiration. In general, seedlings inoculated with G. rose showed greater dependence, peroxidase activity and basal soil respiration. Based on the results, it is concluded that the inoculation of G. rosea seedlings of yellow passion fruit, can be reached for its development, being able to be a promising technology for commercial nurseries. Plants inoculated with G. s and without treatment with IBA showed higher shoot dry matter and mycorrhizal dependence, and activity of SOD and POD enzymes, on the other hand, the use of IBA had a negative effect on this fungus. The association between the fungi G. rosea and G. clarium and the best use of IBA also promotes development for blueberry seedlings, increasing rooting height, plants, root system length and SPAD index. These results guarantee that the inoculation of blueberry cuttings with G. e can help in the development of seedlings, as well as biometric and biochemical parameters.