Shoot and root development and dry matter partitioning in Populusgrandidentata, P. tremuloides, and P. × smithii
Autor: | Gregory L. Reighard, James W. Hanover |
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Rok vydání: | 1990 |
Předmět: | |
Zdroj: | Canadian Journal of Forest Research. 20:849-852 |
ISSN: | 1208-6037 0045-5067 |
DOI: | 10.1139/x90-112 |
Popis: | Shoot and root development and dry matter partitioning in Populusgrandidentata Michaux, Populustremuloides Michaux, and their hybrid Populus × smithii Boivin were studied in hydroponic culture. Seedlings from intra- and inter-specific crosses having P. tremuloides as the maternal parent grew the tallest. Populustremuloides produced significantly fewer secondary roots than did P. grandidentata and P. × smithii. Rates of root growth in both species and the hybrid were similar after 5 weeks. Populustremuloides had a stem to root ratio twice that of P. grandidentata, whereas the hybrids had ratios that were more like those of their maternal parents. |
Databáze: | OpenAIRE |
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