<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Paoletti, Elena</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Effects of acidity and detergent on in vitro pollen germination and tube growth in forest tree species</style></title><secondary-title><style face="normal" font="default" size="100%">Tree Physiology</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">acidity</style></keyword><keyword><style  face="normal" font="default" size="100%">detergent (voyant)</style></keyword><keyword><style  face="normal" font="default" size="100%">pollen germination</style></keyword><keyword><style  face="normal" font="default" size="100%">tube elongation</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1992</style></year></dates><volume><style face="normal" font="default" size="100%">10</style></volume><pages><style face="normal" font="default" size="100%">357-366</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">The presence of 1 to 3 mg 1−1 sodium dodecylbenzensulfonate detergent, or a growth medium pH of 4.0–5.0, inhibited pollen germination and pollen tube elongation more in broad-leaved trees than in conifers. In the broad-leaved species, pollen germination and pollen tube elongation showed similar sensitivities to detergent and acidity, whereas in the conifers, pollen tube elongation was more sensitive than pollen germination to detergent and acidity. Although the germination percentage was low, conifer pollen germinated in the presence of detergent concentrations up to 15 mg l−1 and at acidities as low as pH 2.5 or 3.0. Pollen germination of most broad-leaved species was completely inhibited in the presence of detergent concentrations of more than 3–5 mg l−1; the only exceptions were some entomophilous species (e.g., Salix caprea L.) in which the ability of the pollen to germinate in high pollutant concentrations could be related to the presence of tryphyne.</style></abstract><notes><style face="normal" font="default" size="100%">10.1093/treephys/10.4.357</style></notes><research-notes><style face="normal" font="default" size="100%">10.1093/treephys/10.4.357</style></research-notes></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Paoletti, E</style></author><author><style face="normal" font="default" size="100%">GELLINI, R</style></author><author><style face="normal" font="default" size="100%">Barbolani, E</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Effects of acid fog and detergents on foliar leaching of cations</style></title><secondary-title><style face="normal" font="default" size="100%">Water, Air, &amp; Soil Pollution</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">acid deposition</style></keyword><keyword><style  face="normal" font="default" size="100%">detergent (voyant)</style></keyword><keyword><style  face="normal" font="default" size="100%">nutrient leaching</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1989</style></year></dates><volume><style face="normal" font="default" size="100%">45</style></volume><pages><style face="normal" font="default" size="100%">49-61</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Relative rates of nutrient leaching from the epygeous apparatus of Quercus ilex L., Fagus sylvatica L., Acer opalus Mill., Euonymus japonicus L. and Phaseolus vulgaris L. were examined after exposure to simulated acid fog. Copper, A1, Fe, Mn, Ca, Mg, and Pb were preferentially leached at low pH, whereas leaching rates of Na, K, and Cd did not appear to be pH-influenced. Addition of surfactant to the spray solutions showed a slight reduction of leaching for all elements investigated. Except for Mg, foliar nutrient levels were not influenced during our experiments.</style></abstract></record></records></xml>