Eficiência de fungos micorrízicos arbusculares no desenvolvimento de espécies arbóreas em região semi-árida na Paraíba.

Abstract

With the objective of to evaluate the efficiency of the inoculation with fungus micorrízico arbuscular (MAF) in ten arboreal species of occurrence in the Northeast of Brazil with potential for multiple use. He/she behaved an experiment in atmosphere protected by screen in the Campus of Patos, PB of the Federal University of Campina Grande. It was used in each species the inoculation treatments with FMA, being Glomus etunicatum Becker & Gerdemann, Gigaspora margarita Beker & Hall and a mixture of native spores, isolated of sample of soil of the area in study and one more control without FMA; addition of two doses of P, basing on the maximum capacity of absorption of P of the substratum (0,02 and 0,2 mg L-1 in solution), used as source the simple superfosfato. The study was thrown in delineamento entirely casualizado, in factorial (4x2x3) outline with three repetitions of each treatment. After sessena days the efficiency micotróficas of the species was evaluated using the parámetros of growth of the seedlings in height and diameter. To the results mostratam variation of the resposes of the species the inoculation and P. Being the best results observed in inoculated plants and with P.