J. For. Res. https://doi.org/10.1007/s11676-018-0684-8 ORIGINAL PAPER Selection of female parents with high fertility and high combining abilities for cross-breeding Populus tomentosa 1 1 1 1 • • • Feng-ying Bai Ning Kang Ping-dong Zhang Xiang-yang Kang Received: 20 October 2016 / Accepted: 11 May 2017 Northeast Forestry University and Springer-Verlag GmbH Germany, part of Springer Nature 2018 Abstract To select maternal parents with high fertility and Keywords Fertility ability General combining ability high combining ability during cross breeding of Populus Genetic variation Half-sib family Populus tomentosa tomentosa Carr., the ploidy level of 75 female clones was determined using ﬂow cytometry. In addition, genetic variations and phenotypic correlations of seed traits and Introduction early growth traits, as well as the general combining ability (GCA) for seedling height (SH) and basal diameter (BD) of Chinese white poplar, Populus tomentosa Carr. (family all diploid half-sib families were examined. A total of 26 Salicaceae, genus Populus, section Populus), is one of the natural triploid clones were identiﬁed. For all diploid most important indigenous tree species in northern China. families, family effects were signiﬁcant for inﬂorescence Due to its high growth rate, excellent disease resistance, length (IL), thousand kernel weight (TKW),
Journal of Forestry Research – Springer Journals
Published: Jun 5, 2018
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