Effects of pH and Mineral Nutrition on Growth and Physiological Responses of Trembling Aspen (Populus tremuloides), Jack Pine (Pinus banksiana), and White Spruce (Picea glauca) Seedlings in Sand Culture.
Identifieur interne : 000441 ( Main/Exploration ); précédent : 000440; suivant : 000442Effects of pH and Mineral Nutrition on Growth and Physiological Responses of Trembling Aspen (Populus tremuloides), Jack Pine (Pinus banksiana), and White Spruce (Picea glauca) Seedlings in Sand Culture.
Auteurs : Feng Xu [Canada] ; Maryamsadat Vaziriyeganeh [Canada] ; Janusz J. Zwiazek [Canada]Source :
- Plants (Basel, Switzerland) [ 2223-7747 ] ; 2020.
Abstract
Responses of trembling aspen (Populus tremuloides), jack pine (Pinus banksiana), and white spruce (Picea glauca) seedlings to root zone pH ranging from 5 to 9 were studied in sand culture in the presence of two mineral nutrition levels. After eight weeks of treatments, effects of pH on plant dry weights varied between the plant species and were relatively minor in white spruce. Higher nutrient supply significantly increased dry weights only in trembling aspen subjected to pH 5 treatment. There was little effect of pH and nutrition level on net photosynthesis and transpiration rates in white spruce and jack pine, but net photosynthesis markedly declined in aspen at high pH. Chlorophyll concentrations in young foliage decreased the most in trembling aspen and jack pine. The effects of high pH treatments on the concentrations of Mg, P, Ca, Mn, Zn, and Fe in young foliage varied between the plant species with no significant decreases of Fe and Zn recorded in trembling aspen and white spruce, respectively. This was in contrast to earlier reports from the studies carried out in hydroponic culture. The sand culture system that we developed could be a more suitable alternative to hydroponics to study plant responses to pH in the root zone. Plant responses to high pH appear to involve complex events with a likely contribution of nutritional effects and altered water transport processes.
DOI: 10.3390/plants9060682
PubMed: 32471298
PubMed Central: PMC7356384
Affiliations:
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Zwiazek</name><affiliation wicri:level="1"><nlm:affiliation>Department of Renewable Resources, University of Alberta, 442 Earth Sciences Bldg., Edmonton, AB T6G 2E3, Canada.</nlm:affiliation><country xml:lang="fr">Canada</country><wicri:regionArea>Department of Renewable Resources, University of Alberta, 442 Earth Sciences Bldg., Edmonton, AB T6G 2E3</wicri:regionArea><wicri:noRegion>AB T6G 2E3</wicri:noRegion></affiliation></author></analytic><series><title level="j">Plants (Basel, Switzerland)</title><idno type="ISSN">2223-7747</idno><imprint><date when="2020" type="published">2020</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Responses of trembling aspen (<i>Populus tremuloides</i>), jack pine (<i>Pinus banksiana</i>), and white spruce (<i>Picea glauca</i>) seedlings to root zone pH ranging from 5 to 9 were studied in sand culture in the presence of two mineral nutrition levels. After eight weeks of treatments, effects of pH on plant dry weights varied between the plant species and were relatively minor in white spruce. Higher nutrient supply significantly increased dry weights only in trembling aspen subjected to pH 5 treatment. There was little effect of pH and nutrition level on net photosynthesis and transpiration rates in white spruce and jack pine, but net photosynthesis markedly declined in aspen at high pH. Chlorophyll concentrations in young foliage decreased the most in trembling aspen and jack pine. The effects of high pH treatments on the concentrations of Mg, P, Ca, Mn, Zn, and Fe in young foliage varied between the plant species with no significant decreases of Fe and Zn recorded in trembling aspen and white spruce, respectively. This was in contrast to earlier reports from the studies carried out in hydroponic culture. The sand culture system that we developed could be a more suitable alternative to hydroponics to study plant responses to pH in the root zone. Plant responses to high pH appear to involve complex events with a likely contribution of nutritional effects and altered water transport processes.</div></front></TEI><pubmed><MedlineCitation Status="PubMed-not-MEDLINE" Owner="NLM"><PMID Version="1">32471298</PMID><DateRevised><Year>2020</Year><Month>09</Month><Day>28</Day></DateRevised><Article PubModel="Electronic"><Journal><ISSN IssnType="Print">2223-7747</ISSN><JournalIssue CitedMedium="Print"><Volume>9</Volume><Issue>6</Issue><PubDate><Year>2020</Year><Month>May</Month><Day>27</Day></PubDate></JournalIssue><Title>Plants (Basel, Switzerland)</Title><ISOAbbreviation>Plants (Basel)</ISOAbbreviation></Journal><ArticleTitle>Effects of pH and Mineral Nutrition on Growth and Physiological Responses of Trembling Aspen (<i>Populus tremuloides</i>), Jack Pine (<i>Pinus banksiana</i>), and White Spruce (<i>Picea glauca</i>) Seedlings in Sand Culture.</ArticleTitle><ELocationID EIdType="pii" ValidYN="Y">E682</ELocationID><ELocationID EIdType="doi" ValidYN="Y">10.3390/plants9060682</ELocationID><Abstract><AbstractText>Responses of trembling aspen (<i>Populus tremuloides</i>), jack pine (<i>Pinus banksiana</i>), and white spruce (<i>Picea glauca</i>) seedlings to root zone pH ranging from 5 to 9 were studied in sand culture in the presence of two mineral nutrition levels. After eight weeks of treatments, effects of pH on plant dry weights varied between the plant species and were relatively minor in white spruce. Higher nutrient supply significantly increased dry weights only in trembling aspen subjected to pH 5 treatment. There was little effect of pH and nutrition level on net photosynthesis and transpiration rates in white spruce and jack pine, but net photosynthesis markedly declined in aspen at high pH. Chlorophyll concentrations in young foliage decreased the most in trembling aspen and jack pine. The effects of high pH treatments on the concentrations of Mg, P, Ca, Mn, Zn, and Fe in young foliage varied between the plant species with no significant decreases of Fe and Zn recorded in trembling aspen and white spruce, respectively. This was in contrast to earlier reports from the studies carried out in hydroponic culture. The sand culture system that we developed could be a more suitable alternative to hydroponics to study plant responses to pH in the root zone. 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