Summary
Radermachera sinica (Hance) Hemsl., is illustrated. Its history is described, and its survival and flowering in cultivation in London are recorded.
Full text
Available for:
DOBA, FZAB, GIS, IJS, IZUM, KILJ, NLZOH, NUK, OILJ, PILJ, PNG, SAZU, SBCE, SBMB, UILJ, UKNU, UL, UM, UPUK
Summary
Coelogyne squamulosa is illustrated from a specimen flowering in cultivation. The history of its discovery and rediscovery in Borneo and its ecology are described. Related species are ...discussed and a detailed description of C. squamulosa is given.
Full text
Available for:
DOBA, FZAB, GIS, IJS, IZUM, KILJ, NLZOH, NUK, OILJ, PILJ, PNG, SAZU, SBCE, SBMB, UILJ, UKNU, UL, UM, UPUK
Abstract
Magnolia grandis
, (Hu & W.C. Cheng) V.S. Kumar is illustrated. Its history and first flowering in cultivation are discussed. Its distribution in China and Vietnam is described.
Full text
Available for:
DOBA, FZAB, GIS, IJS, IZUM, KILJ, NLZOH, NUK, OILJ, PILJ, PNG, SAZU, SBCE, SBMB, UILJ, UKNU, UL, UM, UPUK
Late flowering is a serious bottleneck in pumpkin (Cucurbita moschata Duch.) agriculture production. Although key genes governing flowering time have been reported in many species, the regulatory ...network of flowering in pumpkin remains largely obscure, thereby impeding the resolution of industry‐wide challenges associated with delayed fruit ripening in pumpkin cultivation. Here, we report an early flowering pumpkin germplasm accession (LXX‐4). Using LXX‐4 and a late flowering germplasm accession (HYM‐9), we constructed an F2 segregation population. A significant difference in FLOWERING LOCUS T‐LIKE 2 (FTL2) expression level was identified to be the causal factor of the flowering time trait discrepancy in LXX‐4 and HYM‐9. Moreover, we have shown that a 21 bp InDel in the FTL2 promoter was the key reason for the waxing and waning of its transcript level. The 21 bp deletion excluded a repressor‐AGL19 and recruited activators‐BBX7, WRKY40 and SVP to the FTL2 promoter in LXX‐4. Together, our data add a useful element to our knowledge which could be used to simplify breeding efforts for early‐maturing pumpkin.
Summary statement
An InDel in FTL2 promoter exclude repressor AGL19 and recruit activators BBX7, WRKY40 and SVP to the promoter, leading to increase of FTL2 transcript level and early floral initiation under short‐day conditions.
Full text
Available for:
BFBNIB, FZAB, GIS, IJS, KILJ, NLZOH, NUK, OILJ, SAZU, SBCE, SBMB, UL, UM, UPUK
Summary
Changes to flowering phenology are a key response of plants to climate change. However, we know little about how these changes alter temporal patterns of reproductive overlap (i.e. ...phenological reassembly).
We combined long‐term field (1937–2012) and herbarium records (1850–2017) of 68 species in a flowering plant community in central North America and used a novel application of Bayesian quantile regression to estimate changes to flowering season length, altered richness and composition of co‐flowering assemblages, and whether phenological shifts exhibit seasonal trends.
Across the past century, phenological shifts increased species' flowering durations by 11.5 d on average, which resulted in 94% of species experiencing greater flowering overlap at the community level. Increases to co‐flowering were particularly pronounced in autumn, driven by a greater tendency of late season species to shift the ending of flowering later and to increase flowering duration.
Our results demonstrate that species‐level phenological shifts can result in considerable phenological reassembly and highlight changes to flowering duration as a prominent, yet underappreciated, effect of climate change. The emergence of an autumn co‐flowering mode emphasizes that these effects may be season‐dependent.
Full text
Available for:
BFBNIB, FZAB, GIS, IJS, KILJ, NLZOH, NUK, OILJ, SAZU, SBCE, SBMB, UL, UM, UPUK
PDF
