Browsing by Author "Quilapanta Criollo, Edgar Rodrigo"

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    Análisis morfométrico de cultivares de zanahoria blanca (Arracacia xanthorrhiza Bancroft) de la provincia de Tungurahua
    (2016) Quilapanta Criollo, Edgar Rodrigo; Dávila Ponce, Martha
    This research "Morphometric analysis of white carrot cultivars (Arracacia xanthorrhiza Bancroft) in the province of Tungurahua", was held at the Experimental Farm Querochaca of the Faculty of Agricultural Sciences, located at the geographic coordinates 01°22'02" South and 78°36'20 "West, with altitude 2865 m, located in the University district Tambo Region Cevallos, Tungurahua province. Three cultivars of A. xanthorrhiza were collected from Quinchicoto – Tisaleo; Quillan –Píllaro, and El Triunfo – Baños province of Tungurahua, Ecuador, the results were evaluated of the most important morphological parts of the species: storage roots, roots, aerial parts of the stems and leaves. The characters of the aerial parts were recorded before flowering. (240 days), while the underground parts were taken immediately after harvest. To evaluate the variances between locations for quantitative descriptors it was used analysis of variance (ANOVA, Analysis of variance) with the program INFOSTAT (2015). For the multivariate analysis of each descriptor, Principal component analysis was performed (CP), determining the Eigen values using the NTSYS 2.1 program. The results indicate that quantitative characters that discrimination had better be able to differentiate the three locations were: Plant height, petiole length, petiole width and diameter central core. By studying qualitative characteristics it was determined that the first component of the analysis of CP (C1), It was decisive in separating cultivars from Quillan – Pillaro and El triunfo – Baños. This component brings together qualitative characters such as: predominant color of foliage, predominant color on the lower side, predominant color of the beam edge of the leaflets, predominant color of the leaflets, predominant color pulp suckers, predominant color surface storage root, secondary color root surface reserving, distribution secondary color Storage root surface predominant color and pulp storage root. The second major component (C2) is of greater value to separate plants cultivar Quinchicoto – Tisaleo where the secondary color of the leaflets and its distribution were the main characters. KEYWORDS: Morphometric analysis, Cultivation, Descriptors, Eigenvalue