Morphological variation within a sour cherry collection |
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Authors: | Kimberly H Krahl Ali Lansari Amy F Iezzoni |
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Institution: | (1) Department of Horticulture, Michigan State University, 48824 East Lansing, MI, USA;(2) Present address: Horticulture Department, University of Georgia, 30602 Athens, GA, USA;(3) Present address: Ecoli Nationale d'Agriculture, Meknes, Morocco |
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Abstract: | Summary Morphological traits of 28 full-sib sour cherry (Prunus cerasus L.) families developed with pollen from European sour cherry selections were evaluated with principal component (PC) analysis. The traits which loaded on the first PC were size characters such as lateral length, leaf area, fruit weight, and trunk diameter increase. These character loading on the first PC could be interpreted as representing gradations between morphologies characteristic of the 2 presumed progenitor species, sweet cherry (P. avium L.) and ground cherry (P. fruticosa Pall.). Mean family differences in trunk diameter increase, lateral length, leaf area, and fruit weight varied approximately 12, 3.7, 2.5, and 2 fold, respectively. These results suggest that it may be possible to select sour cherry hybrids approaching the tree and fruit size of either progenitor species. The results are discussed in reference to germplasm collection and the potential of certain cultivars and hybrids as parents. |
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Keywords: | Prunus cerasus sour cherry morphology germplasm collection genebank variation principal component analysis |
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