Phosphorus-induced micronutrient disorders in hybrid poplar

Teng, Yuanxin; Timmer, V. R.

doi:10.1007/bf00041365

Cited by 41 publications

(19 citation statements)

References 30 publications

(39 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…When necessary, secondary compound concentrations and whole plant biomass were transformed to their natural logarithms to meet the assumptions of analysis of covariance. As a change in tissue concentrations of a compound in response to an environmental factor or with developmental stage can re¯ect both a change in the production of the compound and dilution eect through accelerated plant growth, we present the results in a concentration against pool size plot (product of dry mass and concentration) (Teng and Timmer 1990;Oren and Schulze 1989). If, in response to CO 2 or N availability the relative increase in concentrations of total phenolics or condensed tannins is larger than the relative increase in pool size, then the production of phenolics is stimulated more than growth.…”

Section: Methodsmentioning

confidence: 99%

The effect of elevated CO 2 and N availability on tissue concentrations and whole plant pools of carbon-based secondary compounds in loblolly pine ( Pinus taeda )

1997

View full text Add to dashboard Cite

We examined the extent to which carbon investment into secondary compounds in loblolly pine (Pinus taeda L.) is changed by the interactive effect of elevated CO and N availability and whether differences among treatments are the result of size-dependent changes. Seedlings were grown for 138 days at two CO partial pressures (35 and 70 Pa CO) and four N solution concentrations (0.5, 1.5, 3.5, and 6.5 mmol l NONH) and concentrations of total phenolics and condensed tannins were determined four times during plant development in primary and fascicular needles, stems and lateral and tap roots. Concentrations of total phenolics in lateral roots and condensed tannins in tap roots were relatively high regardless of treatment. In the smallest seedlings secondary compound concentrations were relatively high and decreased in the initial growth phase. Thereafter condensed tannins accumulated strongly during plant maturation in all plant parts except in lateral roots, where concentrations did not change. Concentrations of total phenolics continued to decrease in lateral roots while they remained constant in all other plant parts. At the final harvest plants grown at elevated CO or low N availability showed increased concentrations of condensed tannins in aboveground parts. The CO effect, however, disappeared when size differences were adjusted for, indicating that CO only indirectly affected concentrations of condensed tannins through accelerating growth. Concentrations of total phenolics increased directly in response to low N availability and elevated CO in primary and fascicular needles and in lateral roots, which is consistent with predictions of the carbon-nutrient balance (CNB) hypothesis. The CNB hypothesis is also supported by the strong positive correlations between soluble sugar and total phenolics and between starch and condensed tannins. The results suggest that predictions of the CNB hypothesis could be improved if developmentally induced changes of secondary compounds were included.

show abstract

Section: Methodsmentioning

confidence: 99%

The effect of elevated CO 2 and N availability on tissue concentrations and whole plant pools of carbon-based secondary compounds in loblolly pine ( Pinus taeda )

1997

View full text Add to dashboard Cite

show abstract

“…Additions of P decreased foliar concentrations of Cu and Zn in two or more years at all three sites. High rates of P addition may induce deficiencies of Zn (Teng and Timmer, 1990;Marschner, 1995) and restrict growth responses to added P; however, critical trace element concentrations have not been determined for red alder. In the P1 and P2 treatments, first-year foliar concentrations of Cu were not less than, and P:Cu ratios were not in excess of, levels considered limiting in hybrid poplar (van den Driessche, 2000).…”

Section: Tablementioning

confidence: 98%

Growth, foliar nutrition and δ13C responses of red alder (Alnus rubra) to phosphorus additions soon after planting on moist sites

Brown

Courtin

Negrave

2011

Forest Ecology and Management

View full text Add to dashboard Cite

“…Fertilization followed exponential (E) addition schedules. rate, and then declined thereafter presumably due to toxicity [42,43]. Trends in plant nutrient concentration (Fig.…”

Section: Seedling Growth and Nutritionmentioning

confidence: 99%

Characterizing fertility targets and multi-element interactions in nursery culture ofQuercus rubraseedlings

Salifu

Jacobs

2006

Ann. For. Sci.

View full text Add to dashboard Cite

-We quantified and characterized fertility targets for nursery culture of container northern red oak (Quercus rubra L.) seedlings. Plants were supplied with a 15N-5P 2 O 5 -15K 2 O fertilizer at eight rates ranging from 0-150 mg N plant -1 and reared for 18 wk in a greenhouse. Plant growth and nutritional response to increased fertilization followed a curvilinear pattern depicting phases that ranged from deficiency to toxicity. Seedling dry mass production was maximized at sufficiency (25 mg N plant -1 season -1 ) while optimum N and P uptake occurred at 100 mg N plant -1 season -1 . The 150 mg N plant -1 seasonal dose rate induced N and P toxicity, but resulted in antagonistic K interaction. Nutrient loading raised plant N and P contents by 27 and 55%. This new approach demonstrates promise to help refine fertility targets for nursery production of Q. rubra planting stock and may have application to other hardwood species or cultural systems.antagonistic interaction / exponential fertilization / growth / luxury uptake / northern red oak / vector diagnosis Résumé -Caractérisation des objectifs de fertilité et des interactions multiéléments chez des semis de Quercus rubra cultivés en pépinière. Des objectifs de fertilité ont été quantifiés et caractérisés pour des semis de chêne rouge d'Amérique (Quercus rubra L.) cultivés en pépinière. Les semis ont été alimentés avec un engrais 15N-5P2O5-15K2O selon huit taux de 0-150 mg N plant -1 et ont poussés pendant 18 semaines dans une serre. La croissance des semis, leur réponse nutritionnelle à un accroissement de la fertilisation a suivi un modèle curvilinéaire décrivant des phases rangées depuis la carence jusqu'à la toxicité. La production en matière sèche des semis a été maximale à la dose suffisante correspondant à 25 mg N plant -1 saison -1 , tandis que l'optimum de consommation s'est situé à 100 mg N plant -1 saison -1 . La dose saisonnière de 150 mg N plant -1 a induit une toxicité N et P, mais il en est résulté une interaction antagoniste avec K. Le prélèvement de nutriments par les plants a augmenté le contenu en N et P de 27 % et 55 %. Cette nouvelle approche démontre la possibilité d'espérer perfectionner les objectifs de fertilité pour une production en pépinière de plants de Quercus rubra et peuvent avoir une application pour d'autres espèces feuillues et d'autres systèmes culturaux. interaction antagoniste / fertilisation exponentielle / croissance / consommation de luxe / chêne rouge / vecteur diagnose

show abstract

Phosphorus-induced micronutrient disorders in hybrid poplar

Cited by 41 publications

References 30 publications

The effect of elevated CO 2 and N availability on tissue concentrations and whole plant pools of carbon-based secondary compounds in loblolly pine ( Pinus taeda )

The effect of elevated CO 2 and N availability on tissue concentrations and whole plant pools of carbon-based secondary compounds in loblolly pine ( Pinus taeda )

Growth, foliar nutrition and δ13C responses of red alder (Alnus rubra) to phosphorus additions soon after planting on moist sites

Characterizing fertility targets and multi-element interactions in nursery culture ofQuercus rubraseedlings

Contact Info

Product

Resources

About