PAULA INDOOR VARIETY OF POINSETTIA (Euphorbia pulcherrima Willd. ex Klotzsch)
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Abstract
Objective: Evaluate the behavior of the poinsettia variety (Euphorbia pulcherrima Willd. ex Klotzsch) called Paula and describe its characteristics based on the guidelines of the International Union for the Protection of New Varieties of Plants.
Design/methodology/approach: The genetic improvement process was by hybridization and selection. To promote compaction and greater branching, it was grafted on a commercial variety. The cuttings of this gave rise to the variety Paula, which was described in 2020 with the Guidelines for the Execution of Examination of Distinctness, Uniformity and Stability of Euphorbia pulcherrima Willd. ex Klotzsch of the International Union for the Protection of New Varieties of Plants. A completely randomized experimental design with 10 replications was used. Vegetative and bract characters were recorded and analysis of variance was applied, as well as a mean comparison test using Tukey (P≤ 0.05).
Results: Paula presented medium size, wide breadth and medium branching. Stem with weak intensity of green color in the middle third. Oval-shaped leaves, long in length and broad in width, a single color of medium intensity, wedge-shaped at the base, long-length petiole with weak intensity of the green color of the beam. With many elliptical red bracts of medium length and narrow width. Compared to other INIFAP varieties, Paula presented statistical differences in vegetative and bract characters.
Limitations on study/implications: Commercial production of poinsettia is done by taking advantage of asexual propagation. The original plant must be kept in a vegetative state, through comprehensive and intensive management in order to avoid flowering and thus obtain a continuum of propagation material.
Findings/conclusions: Paula is of intermediate cycle, with qualitative and competitive characteristics in size, branching and red color of the bract. It can satisfy the taste and preference of consumers in the national and even international markets.