Light intensity and type of container on producing Cassia grandis L. f. seedlings

Revista Brasileira de Engenharia Agrícola e Ambiental

Nogueira, Narjara W.²  Torres, Salvador B.²  Freitas, Rômulo M. O. de³  Farias, Raul M. de¹  Leal, Caio C. P.² 

[1] Biolchim do Brasil Imp. e Com. Ltda. São Paulo, Valencia, BR;Universidade Federal Rural do Semi-Árido, Mossoró, BR;Instituto Federal de Educação, Ciência e Tecnologia Baiano, Valencia, BR

关键词: pink shower cassia;    forest species;    forest species seeds;    seedling growth;    shading;   

DOI  :  10.1590/1807-1929/agriambi.v19n10p939-945

学科分类：农业科学（综合）

来源: Universidade Federal de Campina Grande * Centro de Ciencias e Tecnologia

【 摘 要 】

This study aimed to determine the effects of the luminosity and type of container on producing Cassia grandis seedlings. Thus, in a substrate composed by topsoil + wood powder (1:1) the seedlings were grown into plastic tubets containing 0.3 dm3 of such substrate, or into plastic pots containing 1.0 dm3 of the same substrate, and subjected to 50 and 25% shading or full sunlight. The assessments were performed every two weeks by measuring plant height and stem diameter, during eight weeks period. At the end of this period, the leaf area, dry mass of shoots and roots, the ratio between height of plant/diameter of stem, and the Dickson quality index were also assessed. The experiment was carried out in a completely randomized design with treatments arranged in a 3 x 2 factorial [3 luminosity levels (50, 25% shading and full sunlight) x 2 types of containers (plastic tubets and clay pots)] with four replicates of 10 seedlings each. Means were compared by Tu

【 授权许可】

Unknown