Life History Variation of Common Mullein (Verbascum Thapsus): II. Plant Size, Biomass Partitioning and Morphology

Abstract

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Clone-specific differences in Phragmites australis: Effects of ploidy level and geographic origin

“…This appears to be a common characteristic among plants and has been demonstrated for a number of other plant species, for example Carex aquatilis (Chapin and Chapin, 1981), Verbascum thapsus (Reinartz, 1984) and Arabidopsis thaliana (Li et al, 1998).…”

Common mullein (Verbascum thapsus L.): recent advances in research

“…Compared with other monocarpic species, V. thapsus L. has an extremely low reproductive effort (11%-23% of biomass) and seed output (4%-8%). The reproductive efforts and seed output of other monocarpic species average 40% and 25%, respectively (Reinartz, 1984b). Differences between cohorts of mullein in plant size and the year of flowering were primarily environmentally induced; however, the variation between cohorts in a number of other characters appeared to have a genetic basis (Reinartz, 1984c).…”

Latitudinal variation in plant size and relative growth rate in Arabidopsis thaliana

“…Some of the variation may be phenotypic in origin but some is genetically based. For example, harsh and infertile conditions normally produce inherently small ecotypes, which may also be correlated with short development cycles, growing seasons and life spans (Clausen et al 1948;BoÈ cher 1949;BoÈ cher and Larsen 1958;Reinartz 1984b).…”

“…To the best of our knowledge, studies focusing on latitudinal variation in RGR have been rare, although numerous studies (e.g. BoÈ cher 1949;BoÈ cher and Larsen 1958;Reinartz 1984b;Potvin 1986;Lacey 1988;Winn and Gross 1993) have investigated the in¯uence of latitude on phenology. It was concluded that plants from low-latitude habitats tend to have a shorter length of pre-reproductive period than those from high latitude habitats and that this latitudinal change is genetically based (Lacey 1988; but see Bannister 1976).…”