Anáise de Sobrevivêrescimento de Cordia trichotoma, boraginaceae, Lamiales, no sul de mato grosso do sul - Brasil

Abstract

The evaluation of a plant survival percentage and growth may reflect its competitive ability in plant community. Cordia trichotoma is a common native tree in Mato Grosso do Sul State and one of the most promising for planting. This study monitored the survival percentage and growth of Cordia trichotoma under different conditions such as weeding and receiving or not fertilization. The experiment started in September 2008 and it was concluded in March 2010. The seeds collection and sowing were held in urban area of Mundo Novo Municipality and the area for permanent planting to measure seedlings survival and growth was set at Japorã Municipality, Fazenda Santa Clara. Seedlings were planted in two categories: the use or not of fertilizer and crowing resulting in four distinct groups: block fertilizer bare earth (ATN), bare land block without fertilizer (BTN), fertilizer and crown block (AC) and without fertilizer and crowned block (BC). The results indicated high survival of Cordia trichotoma in the seedling transplant system from bed to bags. The BC block showed the highest percentage of survival, but the smaller increments in height. The AC, ATN and BTN blocks presented the same survival pattern and similar average growth. However, there may be differences in nutritional and chemical composition of the soil suggesting sector analysis for future studies.