@article {594, title = {Effects of Salinity and Temperature on Seed Germination in a Japanese Endangered Halophyte Triglochin maritimum (Juncaginaceae)}, journal = { Journal of Plant Research}, volume = {112}, year = {1999}, pages = {457-461 }, keywords = {dormancy, Endangered species, Halophyte, Salinity, seed germination, Triglochin maritimum}, doi = {10.1007/PL00013901}, author = {Michiko Masuda and Masayuki Maki and Tetsukazu Yahara} } @article {567, title = {Original publication of Triglochin protuberans}, volume = {12}, year = {1999}, chapter = {215}, author = {Aston, Helen Isobel} } @article {313, title = {Community structure on unusual habitat islands: quartz-fields in the Succulent Karoo, South Africa}, journal = {Plant EcologyPlant Ecology}, volume = {142}, year = {1999}, pages = {57-69}, abstract = {Quartz fields are edaphically arid, azonal habitats occurring under different macroclimatic conditions in several arid regions of southern Africa. ...}, keywords = {Convergence, desert growth forms, dwarf succulents, gradients, multivariate gradient analysis, winter-rainfall desert}, author = {Schmiedel, Ute and J{\"u}rgens, Norbert} } @article {288, title = {Clonal plants and environmental heterogeneity}, journal = {Plant EcologyPlant Ecology}, volume = {141}, year = {1999}, pages = {3-7}, abstract = {Clonal growth is characterised by the ability of plants to produce shoot and root units (ramets) which are genetically identical to the parent, and which are potentially independent. Ramets of clonal plants are likely to experience environmental heterogeneity in the form of resource distribution patterns or exposure to other environmental factors. For certain species the key attributes of clonality that appear to confer ecological success under heterogeneous growing conditions can be fairly readily identified, but for the majority of clonal species the mechanisms that may be of particular importance are less certain. Future lines of research should continue to investigate the ecological and evolutionary implications of plant clonality in the context of realistic scales of environmental heterogeneity, as such information may be of considerable practical value.}, keywords = {Clone architecture, division of labour, physiological integration, reproductive strategies}, author = {Price, Elizabeth A.C. and Marshall, Christopher} } @article {234, title = {Effects of salinity and temperature on seed germination in a Japanese endangered halophyte Triglochin maritimum (Juncaginaceae)}, journal = {Journal of Plant ResearchJournal of Plant Research}, volume = {112}, year = {1999}, note = {Triglochin maritima is endangered in Japan (see literature, red list)}, pages = {457-461}, abstract = {Effects of salinity and temperature were examined on the seed germination of an endangered halophyte in Japan, Triglochin maritimum (Juncaginaceae). Germination tests were carried out at three salinity levels (0, 200, 400 mM NaCl) in which seeds were exposed to increasing or decreasing temperatures. Effects of moist-chilling pretreatment (stratification) in 0, 200 and 400 mM NaCl on seed germination at 0, 200 and 400 mM NaCl, respectively, were also examined. Under the highest salinity condition (400 mM NaCl), no germination was observed. The seeds germinated very well (88\%) in fresh-water after 5-month moist-chilling pretreatment. Longer moist-chilling pretreatment resulted in higher germination percentages. Moist chilling pretreatment in 0, 200 and 400 mM NaCl for 5 month enhanced germination percentages to 10\% (in 400 mM NaCl) - 88\% (in 0 mM NaCl).}, keywords = {dormancy, endangered species, halophyte, salinity, seed germination, Triglochin maritimum, Juncaginaceae}, author = {Masuda, Michiko and Maki, Masayuki and Yahara, Tetsukazu} } @article {190, title = {Effect of salinity on seed germination of Triglochin maritima under various temperature regimes}, journal = {Great Basin NaturalistGreat Basin Naturalist}, volume = {59}, number = {2}, year = {1999}, pages = {144-150}, abstract = {

Triglochin maritima L. (arrow grass), an herbaceous perennial in the family Juncaginaceae, is widely distributed in inland and coastal salt marshes of North America. Triglochin maritima seeds from a population growing in a salt marsh at Faust, Utah, were germinated at 4 temperature regimes (12-h night/12-h day, 5-15 degree C, 5-25 degree C, 10-20 degree C, and 15-25 degree C) and 5 salinities (0, 100, 200, 300, 400, and 500 mol m super(-3) NaCl) to determine optimal conditions for germination and level of salt tolerance. Ungerminated seeds were returned to distilled water after 20 d to determine whether seeds could recover from salinity treatments. Maximum germination occurred in distilled water, and increases in NaCl concentration progressively inhibited seed germination. No seeds germinated at concentrations higher than 400 mol m super(-3) NaCl. A temperature regime of low night (5 degree C) and high day (25 degree C) temperature yielded maximum germination; all other temperature regimes significantly inhibited seed germination relative to this optimum. Recovery of germination was highest at 5-25 degree C and lowest at 5-15 degree C. Recovery of seed germination when seeds were transferred to distilled water from salt solutions was highest at 5-25 degree C (72\%) for seeds exposed to the 500 mol m super(-3) NaCl pretreatment and significantly reduced at other temperature regimes. The recovery germination response indicates a synergistic inhibitory interaction effect on germination when seeds were exposed to high salinities at suboptimal thermoperiods.

}, keywords = {Triglochin maritima, halophyte, recovery, seed germination, thermoperiod, Utah}, author = {Khan, M. Ajmal and Ungar, Irwin A.} } @article {140, title = {On the ecology and history of an inland occurrence of Triglochin maritima L.}, journal = {Fennia}, volume = {177}, number = {1}, year = {1999}, pages = {45-54}, abstract = {The present paper describes an inland occurrence of Triglochin maritima L. discovered in northern Kuusamo, in northeast Finland. The species grows over a large area of a fen which is exceptionally rich in electrolytes, and resembles in that respect the coastal sites of the plant. The most abundant electrolyte in the Kuusamo fen, however, is calcium, not sodium or chloride as on the coast. The differences between the coastal and inland growing sites can also be seen in the chemical analyses of the plants. Thus it can be maintained that the species requires a high electrolyte content, but not necessarily the presence of sodium chloride.The origin of the occurrence in Kuusamo goes back to the Preboreal period, from whence onwards it has remained in isolation from the coastal populations. The inland occurrence further illuminates certain aspects in the history of the Primula sibirica group of species.}, keywords = {Finland, inland occurrence, Triglochin maritima}, author = {Havas, Paavo and Vasari, Yrj{\"o}} } @article {63, title = {Studies in the Alismataceae. XI. Development of the inflorescence and flowers of Wiesneria triandra (Dalzell) Micheli}, journal = {Canadian Journal of BotanyCanadian Journal of Botany}, volume = {77}, year = {1999}, pages = {1569-1579}, keywords = {Wiesneria triandra, Alismataceae, Alismatidae, flower, unisexual flower, floral development, evolution, shoot architecture}, author = {Charlton, W. Alan} } @article {17, title = {Triglochin protuberans (Juncaginaceae): a new species from Western Australia}, journal = {Muelleria}, volume = {12}, number = {2}, year = {1999}, pages = {215-216}, abstract = {

Triglochin protuberans Aston sp. nov., an annual species from south-western West Australia, is described and its diagnostic features illustrated.

}, keywords = {Juncaginaceae, Triglochin protuberans, Western Australia}, author = {Aston, Helen Isobel} }