The influence of stockplant environment on morphology, physiology and rooting of leafy stem cuttings of Albizia guachapele
Authors: Mesén, F., Leakey, R.R.B. and Newton, A.C.
Journal: New Forests
Volume: 22
Issue: 3
Pages: 213-227
ISSN: 0169-4286
DOI: 10.1023/A:1015668011884
Abstract:Studies in controlled environment conditions investigated the effects of irradiance and nutrients (NPK) on morphological and physiological characteristics of Albizia guachapele stockplants, and rooting ability of subsequently severed cuttings in non-mist propagators. The study assessed gas exchange and chlorophyll fluorescence of stockplants before cutting severance and of cuttings during the propagation period. A negative interaction was found between increasing irradiance (200-500 μmol m-2 s-1) and increasing nutrient supply (0.25-1.25% NPK) on stockplant growth, and a similar effect was found in the subsequent rooting of cuttings. Rooting percentage decreased from 53.8% with low irradiance/low nutrients to 11.2% with high irradiance/high nutrients. Single-node, leafy cuttings from high irradiance/high nutrient stockplants were much shorter than those from any other treatment, which negatively affected their rooting ability. No differences were found among treatments in chlorophyll fluorescence ratios during propagation, suggesting that A. guachapele cuttings are dependant for rooting not only on current photosynthesis, but also on their initial pre-severance reserves of carbohydrate. It was concluded that A. guachapele, which can be propagated with the non-mist propagation system utilized in this study, was markedly affected by pre-severance stockplant environment through its impact on cutting size and products of photosynthesis. Growing stockplants under low irradiance and low nutrients resulted in longer cuttings with higher rooting ability.
Source: Scopus
The influence of stockplant environment on morphology, physiology and rooting of leafy stem cuttings of <i>Albizia guachapele</i>
Authors: Mesén, F., Leakey, R.R.B. and Newton, A.C.
Journal: NEW FORESTS
Volume: 22
Issue: 3
Pages: 213-227
ISSN: 0169-4286
DOI: 10.1023/A:1015668011884
Source: Web of Science (Lite)
The Influence of Stockplant Environment on Morphology, Physiology and Rooting of Leafy Stem Cuttings of Albizia Guachapele
Authors: Mesen, J.F., Leakey, R.R.B. and Newton, A.
Journal: New Forests
Volume: 22
Pages: 213-227
ISSN: 0169-4286
DOI: 10.1023/A:1015668011884
Abstract:Studies in controlled environmentconditions investigated the effects ofirradiance and nutrients (NPK) on morphologicaland physiological characteristics of Albizia guachapele stockplants, and rootingability of subsequently severed cuttings innon-mist propagators. The study assessed gasexchange and chlorophyll fluorescence ofstockplants before cutting severance and ofcuttings during the propagation period. Anegative interaction was found betweenincreasing irradiance(200–500 mol mminus 2 sminus 1) andincreasing nutrient supply (0.25–1.25% NPK)on stockplant growth, and a similar effect wasfound in the subsequent rooting of cuttings.Rooting percentage decreased from 53.8% withlow irradiance/low nutrients to 11.2% withhigh irradiance/high nutrients. Single-node,leafy cuttings from high irradiance/highnutrient stockplants were much shorter thanthose from any other treatment, whichnegatively affected their rooting ability. Nodifferences were found among treatments inchlorophyll fluorescence ratios duringpropagation, suggesting that A.guachapele cuttings are dependant for rootingnot only on current photosynthesis, but also ontheir initial pre-severance reserves ofcarbohydrate. It was concluded that A.guachapele, which can be propagated with thenon-mist propagation system utilized in thisstudy, was markedly affected by pre-severancestockplant environment through its impact oncutting size and products of photosynthesis.Growing stockplants under low irradiance andlow nutrients resulted in longer cuttings withhigher rooting ability.
http://www.springerlink.com/content/8p58dh2t1vdmg5lm/
Source: Manual
Preferred by: Adrian Newton