|Authors: ||A. Rebolledo-Martinez, R. Mosqueda-Vazquez, A. E. Becerril-Roman, L. Rebolledo-Martinez, Daniel E. Uriza-Avila|
|Keywords: ||Root length, "D" leaf weights, growth rates|
The objective was to analyze pineapple plant growth under four fertilizer rates from planting to blooming date.
Thirteen monthly plant samplings were made during 1990–1992. Fertilizer treatments were: (1) 0–0–0, (2) 12–8–12, (3) 18–8–18, and (4) 24–8–24, grams of N-P-K per plant respectively.
Variables measured were: length and volume of roots; number of roots, fresh and dry weight of roots, stem, total number of leaves and "D" leaf weight, total foliar area.
Highly positive and significant correlations were found among the following variables: dry and fresh weight (r = 0.983); root volume and length (r = 0.969); and, "D" leaf and plant weight (r = 0.957). Dry weight of leaves, showed an exponential growth rate (r2 = 0.956), slow during the initial seven months and fast up to blooming date.
Similar behavior was observed for stem and root weights and foliar area.
Relative growth rate was estimated a well as the unit leafrate and leaf area ratio.
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