TY - JOUR
T1 - Predicting initial tall fescue root growth response to calcium/aluminum solution concentrations
AU - Kruse, John S.
AU - Miller, William P.
AU - Schlossberg, Maxim J.
AU - Yanosky, Daniel
AU - Hall, Daniel B.
PY - 2009/4
Y1 - 2009/4
N2 - A study was conducted to quantify effects of soluble aluminum (Al) and gypsum (CaSO4) on initial root growth of three varieties of tall fescue (Festuca arundinacea). Experiments were performed in a growth chamber using hydroponic solutions containing Al from 0 to74 μM in combination with CaSO4 at 0 to10 mM. Seedlings were grown for 7d, harvested, air dried, scanned, and weighed for treatment comparisons. Significant differences in root length existed between varieties in Al-only solutions at low Al concentrations. All varieties showed reduced root growth at concentrations greater than 37 μM Al. Increased calcium (Ca2+) and sulfate (SO42-) at given concentrations of Al resulted in greater root growth. Relative root growth increased approximately 30% to >80% at 37 μM Al as CaSO4 increased from 2.5 to 10mM. A simple logistic model adequately described the effects of Al and CaSO4 on root growth (r2 = 0.86, 0.95, and 0.96 for the three varieties).
AB - A study was conducted to quantify effects of soluble aluminum (Al) and gypsum (CaSO4) on initial root growth of three varieties of tall fescue (Festuca arundinacea). Experiments were performed in a growth chamber using hydroponic solutions containing Al from 0 to74 μM in combination with CaSO4 at 0 to10 mM. Seedlings were grown for 7d, harvested, air dried, scanned, and weighed for treatment comparisons. Significant differences in root length existed between varieties in Al-only solutions at low Al concentrations. All varieties showed reduced root growth at concentrations greater than 37 μM Al. Increased calcium (Ca2+) and sulfate (SO42-) at given concentrations of Al resulted in greater root growth. Relative root growth increased approximately 30% to >80% at 37 μM Al as CaSO4 increased from 2.5 to 10mM. A simple logistic model adequately described the effects of Al and CaSO4 on root growth (r2 = 0.86, 0.95, and 0.96 for the three varieties).
UR - https://www.scopus.com/pages/publications/69249158703
UR - https://www.scopus.com/pages/publications/69249158703#tab=citedBy
U2 - 10.1080/00103620902754564
DO - 10.1080/00103620902754564
M3 - Article
AN - SCOPUS:69249158703
SN - 0010-3624
VL - 40
SP - 1227
EP - 1239
JO - Communications in Soil Science and Plant Analysis
JF - Communications in Soil Science and Plant Analysis
IS - 7-8
ER -