Growth and fiber morphology of abaca (Musa textilis Nee) ratoons as influenced by density and N level [Philippines]
1982
Gloria, N.M.
An old abaca plantation was subjected to butcher harvest as a rejuvenation process. The subsequent ratoons were evaluated in terms of growth and their dimensions as influenced by plant density and nitrogen level. Generally, ratoons had more rapid vegetative growth than replants regardless of plant density and N level, although it appeared that the application of 100 kg N/ha favored height and girth increment after a period of 12 months. Other gross morphological characteristics like petiole length, leaf blade length and width, ratoons at any density manifested superior performance over the replants. Furthermore, ratoons also had significantly higher fresh and dry matter weight of stalk and leaves than the replants. Leaf N content significantly increased with increased N application during the 6th month but not after 12 months. Plant density did not affect leaf N content. Generally, N application did not significantly affect fiber cellular dimensions. However, the fiber dimensions of ratoons at any density were significantly bigger than those of replants
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