Full text of this article is only available in PDF format.

Tytti Sarjala (email), Seppo Kaunisto

Effect of different potassium sources on the seasonal variation of potassium and free polyamines in Scots pine needles.

Sarjala T., Kaunisto S. (1996). Effect of different potassium sources on the seasonal variation of potassium and free polyamines in Scots pine needles. Silva Fennica vol. 30 no. 4 article id 5565. https://doi.org/10.14214/sf.a8500

Abstract

Seasonal fluctuations in free polyamines, spermidine, spermine, putrescine and potassium concentrations were studied for two years (1992–1993) in three needle years of Scots pine (Pinus sylvestris L.) grown on a drained mire in western Finland. Seven different fertilizer treatments involving five different sources of potassium were used.

Putrescine concentrations were high in winter and in May but low in summer. High peaks in putrescine in March and May could be found in unrefertilized or rock phosphate treatments. Spermidine and spermine concentrations were high in March and May. In December spermine concentrations were low. Biotite increased the needle potassium concentrations less than the other potassium fertilizers but the putrescine concentrations or the putrescine/spermidine ratio to about the same level. This suggests that biotite, although very slowly soluble, can reasonably satisfy potassium nutrition of young pine trees.

The potassium concentrations of needles in all the fertilization treatments were higher in winter than in summer. The response of putrescine to the potassium concentration was strongly negative in all the needle years and sampling times. In March, May and December the response of putrescine to potassium was fairly similar in both years but not in June and August. The results suggest that the potassium concentrations during the growing season cannot be used for estimating the potassium nutrition of trees, because the variation between the years may be substantial, whereas the needle putrescine concentration or putrescine/spermidine ratio indicates the suboptimum potassium status of Scots pine fairly well. Needle putrescine concentrations over 500 nmol g-1FW quite regularly coincided with a unsatisfactory potassium nutrition and concentrations over 1,000 nmol g-1FW were a reliable indication of potassium deficiency. Putrescine/spermidine ratios below 5 indicated a satisfactory potassium nutrition in all needle years throughout the year.

Keywords
Pinus sylvestris; needles; putrescine; potassium deficiency; seasonal fluctuation; spermidine; spermine

Published in 1996

Views 3945

Available at https://doi.org/10.14214/sf.a8500 | Download PDF

Creative Commons License CC BY-SA 4.0

Register
Click this link to register to Silva Fennica.
Log in
If you are a registered user, log in to save your selected articles for later access.
Contents alert
Sign up to receive alerts of new content

Your selected articles
Send to email
Heikurainen L., (1967) Influence of cuttings on the water economy of dr.. Acta Forestalia Fennica vol. 82 no. 2 article id 7175 (remove) | Edit comment
Haapanen M., Annala M.-L. et al. (1997) Progeny trial estimates of genetic parameters fo.. Silva Fennica vol. 31 no. 1 article id 5605 (remove) | Edit comment
Nuutinen T., Kellomäki S. (2001) A comparison of three modelling approaches for l.. Silva Fennica vol. 35 no. 3 article id 586 (remove) | Edit comment
Hänninen R. H., (1998) Exchange rate changes and the Finnish sawnwood d.. Silva Fennica vol. 32 no. 1 article id 700 (remove) | Edit comment
Jokinen P., (1939) Reservation of valuable timber-trees in connecti.. Silva Fennica vol. no. 52 article id 4565 (remove) | Edit comment
Heikurainen L., Seppälä K. (1965) Regionality in stand increment and its dependenc.. Acta Forestalia Fennica vol. 78 no. 4 article id 7157 (remove) | Edit comment
Huttunen S., Kallio S. et al. (1981) The effect of air pollution on transplanted moss.. Silva Fennica vol. 15 no. 4 article id 5154 (remove) | Edit comment
Piha A., (1957) Forest income and capital formation of a farm Acta Forestalia Fennica vol. 65 no. 6 article id 7469 (remove) | Edit comment
Mola-Yudego B., Picchi G. et al. (2015) Assessing chipper productivity and operator effe.. Silva Fennica vol. 49 no. 5 article id 1342 (remove) | Edit comment
Sarjala T., Kaunisto S. (1996) Effect of different potassium sources on the sea.. Silva Fennica vol. 30 no. 4 article id 5565 (remove) | Edit comment
Your search results