Evaluacion de veintiocho genotipos de esparrago (Asparagus officinalis L.), en su primer ano de cosecha, bajo las condiciones de Valdivia.
1992
Mayr W Walther Gerhard
A trial was performed at Santa Rosa Experiment Station, located at Valdivia, from September 1990 to May 1991, in order to evaluate 28 asparagus (Asparagus officinalis L.) genotypes during the first harvesting year. In order to carry out this study, a completely randomized block design with three replications was used. During the trial the following parameters were analyzed: spear yield in its different diameters, plant height, number and diameter of stalks per plant, and dry matter production of the foliage. Results were evaluated by means of an analysis of variance and by Tukey's multiple comparison test; also, different associations among parameters were determined. Genotypes Junon and UC 157 showed the highest yields per surface unit; cultivars of Spanish and Dutch origin were the ones of lowest yields. American cultivars UC 72 and Jersey Giant, together with French hybrids Junon and Aneto, presented the highest yields in extra caliber. However, genotypes D'Argenteuil, Brock's Imperial 84 and UC 72 (Lockhart Seeds) had the largest stalk diameters; on the other hand, genotypes Lucullus 234 had the smallest ones. The highest amount of stalks per plant was observed in genotypes Mary Washington and Lucullus 234, but these were the thinnest ones. Concerning plant height and dry matter yield no differences were observed among genotypes. The parameters showing a greater degree of positive and significant association were number of spears per plant in respect to total yield of spears, and dry matter production in respect to stalk number and plant height.
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