ISHS Acta Horticulturae 61: Symposium on Vaccinium Culture in Europe
RESULTS OF A 16 YEAR VARIETY TRIAL ON HIGHBUSH BLUEBERRIES |
| Authors: | G. Liebster, H. Schimmelpfeng |
| Abstract:
This is a report on the results of a 16 year highbush blueberry variety trial which was laid out on humous, acid, and sandy heath soil in Manching near Ingolstadt in 1958. The location of the plantation is characterized with respect to the ground and the most important climatic conditions. The assortment included the following varieties: 'Earliblue', 'Rancocas', 'Blueray', 'Berkeley', 'Jersey', 'Dixi', and 'Coville'. The results of vegetative development, as well as yield production, are presented after the description of the following upkeep measures-fertilization, mulching, cutting, and plant protection. The following sequence is the result of the growth capacity expressed in corolla volume and space occupied: 'Jersey', 'Dixi', 'Rancocas', 'Berkeley', 'Coville', 'Blueray' and 'Earliblue'. The varieties producing the greatest yield in the 16 year period from 1960 till 1975 were 'Dixi', 'Rancocas', 'Berkeley', and 'Jersey', whereby the varieties 'Coville', 'Blueray' and especially 'Earliblue' diminish immensely. The results of the experiment were calculated statistically; in doing so, significant or highly significant differences between varieties result on the whole. A comparison of gross operating revenue and cost of production results in a net profit, which makes the cultivation of highbush blueberries definitely worthwhile. Further variety tests are necessary in pointing out a general variety recommendation, especially when including the newer, in many respects improved varieties. In 1958, the first experimental highbush blueberry variety plantation in southern Germany was laid out in humous, acid, and sandy heath soil by the 'Highbush Blueberry Working Group' (Arbeitsgemeinschaft Kulturheidelbeeren) which was founded in 1957, but is no longer in existence, and by the Institute for Fruit Growing at the Technical University Munich in the Moorwirtschaftsstelle Baumannshof in Manching near Ingolstadt. The most important results of the ground | |
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