Sobrevivência e crescimento inicial de mudas dePinus taedaL. com diferentes diâmetros do colo

Ciencia Florestal

Raúl Vicente Pezzutti¹ 

[1]UFSM

关键词: desenvolvimento;    qualidade de muda;    parâmetros morfológicos;   

DOI  :  10.5902/198050983240

学科分类：农业科学（综合）

来源: Universidade Federal de Santa Maria * Centro de Pesquisas Florestais

【 摘 要 】

The aim of this research was to evaluate the survival and growth ofPinus taedaseedlings produced in containers and bare root with different collar diameters. Two trials were established in a poor drained area located in the Corrientes province, Argentina. The experimental design was randomized complete blocks, with 3 replications and experimental units with 64 seedlings with double lines buffer. The treatments evaluated on thetrial 1were seedlings produced in containers with collar diameter of 1,6 mm; 2 mm; 3mm and 4 mm and on thetrial 2were bare root seedlings with collar diameters of 3 mm; 4 mm; 5 mm and 6 mm. At 4-year-old the seedlings produced in containers did not showed significant differences in survival and growth however in the bare root seedlings production, the seedlings with 4 and 5 mm showed the best survival. No significant differences in growth were detected for all the treatments. For both types of seedling production the collar diameter did not showed significant influence in field growth.

【 授权许可】

CC BY-NC