masterThesis
Crescimento inicial e morfologia foliar em plantas de Mimosa caesalpiniaefolia Benth. Em função do manejo microbiano, sob estresse salino
Fecha
2014-12-19Registro en:
MENEZES, Virginia Cláudia de Lima. Crescimento inicial e morfologia foliar em plantas de Mimosa caesalpiniaefolia Benth. Em função do manejo microbiano, sob estresse salino. 2014. 40f. Dissertação (Mestrado em Ciências Florestais) - Universidade Federal do Rio Grande do Norte, Universidade Federal do Rio Grande do Norte, Natal, 2014.
Autor
Menezes, Virginia Cláudia de Lima
Resumen
The sabiá (Mimosa caesalpiniaefolia Benth.) is an endemic species of the Caatinga
biome, considered tolerant to salt and water stress. The process of salinization of soil and
groundwater and surface water is one of the most important problems of environmental
degradation, with its harmful effects being more pronounced in the areas of arid and semiarid
regions, and rapidly growing in many parts of the globe, causing problems of the major crop
yield. Organic conditioners as barnyard manure, and rice hulls can contribute to reducing the
PST, possibly due to the release of CO2 and the production of organic acids during the
decomposition of organic matter, and act as sources of calcium and magnesium and inhibit
the availability sodium. The intimate association of mycorrhizae and beneficial to plants
results in increased uptake of water and nutrients by plants, especially phosphorus, due to
their low mobility in soil. The objective of this study was to evaluate the initial growth of
thrush seedlings under inoculation with mycorrhizal fungi and fertilized with manure corral
and irrigated with water of different salinity levels. The experiment was conducted in
greenhouse conditions of vegetation on the premises of the Agricultural School of Jundiaí -
UFRN, Campus Macaíba. The adopted statistical design was randomized composed of
twelve treatments - three substrates (sterile soil, manure and FMA), four salinity levels (0.2,
1.5, 3.0 and 4.5 dS m-1
) and five repetitions, totaling sixty experimental units. The results
indicate that inoculation with mycorrhizal fungi own contributions to the growth of plants,
especially in roots and shoots, which suggests that its application is beneficial in establishing
thrush plants in natural conditions, with poor soil in P. Levels salinity caused no effects with
statistical significance in plant development, indicating Sabia resistance to it.