作者: Gary J. Houliston , Hazel M. Chapman , Ross A. Bicknell
DOI: 10.1007/BF02806477
关键词: Fecundity 、 Plant ecology 、 Sexual reproduction 、 Pollination 、 Genotype 、 Botany 、 Hieracium pilosella 、 Apomixis 、 Biology 、 Facultative
摘要: The potential for sexual reproduction in the facultative apomictHieracium pilosella was determined by pollinating with closely related but morphologically distinctH. aurantiacum. hybrid characteristics of sexually produced progeny were used as markers sex. Crossing carried out under a range environmental treatments to test influence (1) field versus glasshouse conditions, (2) nutrient level and presence pathogen, (3) photoperiod on frequency sex apomicticH. pilosella.