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

Olavi Luukkanen (email)

Effects of gibberellins GA4 and GA7 on flowering in Scots pine grafts.

Luukkanen O. (1981). Effects of gibberellins GA4 and GA7 on flowering in Scots pine grafts. Silva Fennica vol. 15 no. 4 article id 5129. https://doi.org/10.14214/sf.a15186

Abstract

Ethanolic sprays of GA4 or GA7 on 9-year old Scots pine (Pinus sylvestris L.) grafts, repeated four times during the shoot elongation period, resulted in a statistically significant increase in female flowering one year after the treatment. Of the two compounds, GA4 seemed to be somewhat more efficient, yielding 47 female strobili/100 shoots vs. 36 and 6 strobili/100 shoots in GA7 and control treatments respectively. The mixture of GA4 and GA7 compounds was also applied and seemed to have an effect intermediary to those of the pure compounds. However, due to the limited amounts of material, none of the differences between the gibberellins could be statistically confirmed. Male flowering frequencies were also too low to allow any firm conclusions, but the numerical results suggested that the purified gibberellins may promote male and female flowering in different ways.

The PDF includes a summary in Finnish.

Keywords
Pinus sylvestris; Scots pine; flowering; growth hormones; gibberellic acid; male flowering; female flowering

Published in 1981

Views 1377

Available at https://doi.org/10.14214/sf.a15186 | 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
Your search results
Haapanen M., Annala M.-L. et al. (1997) Progeny trial estimates of genetic parameters fo.. Silva Fennica vol. 31 no. 1 article id 5605
Palomäki V., Holopainen T. et al. (1996) First-year results on the effects of elevated at.. Silva Fennica vol. 30 no. 2–3 article id 5580
Saarsalmi A., Lipas E. et al. (1994) Effect of fertilization on flowering and seed cr.. Silva Fennica vol. 28 no. 3 article id 5530
Lippu J., (1994) Patterns of dry matter partitioning and 14C-phot.. Silva Fennica vol. 28 no. 3 article id 5529
Koistinen E., Valkonen S. (1993) Models for height development of Norway spruce a.. Silva Fennica vol. 27 no. 3 article id 5510
Petäistö R.-L., (1989) The influence of autumn transplanting date on th.. Silva Fennica vol. 23 no. 3 article id 5384
Pukkala T., (1989) Predicting diameter growth in even-aged Scots pi.. Silva Fennica vol. 23 no. 2 article id 5376
Hänninen H., Pelkonen P. (1988) Effects of temperature on dormancy release in No.. Silva Fennica vol. 22 no. 3 article id 5357
Kellomäki S., Seppälä M. (1987) Simulations on the effects of timber harvesting .. Silva Fennica vol. 21 no. 2 article id 5315
Pukkala T., (1987) Effect of seed production on the annual growth o.. Silva Fennica vol. 21 no. 2 article id 5312
Pukkala T., (1987) Model for predicting the seed crop of Picea abie.. Silva Fennica vol. 21 no. 2 article id 5311
Heikurainen L., Laine J. et al. (1983) Fertilization and ditch spacing experiments conc.. Silva Fennica vol. 17 no. 4 article id 5198
Heliövaara K., Annila E. et al. (1983) Effect of nitrogen fertilization and insecticide.. Silva Fennica vol. 17 no. 4 article id 5197
Viherä A., Kellomäki S. (1983) Observations on structure and growth of crowns o.. Silva Fennica vol. 17 no. 3 article id 5189
Kellomäki S., Puttonen P. et al. (1982) Effect of nitrogen fertilization on photosynthes.. Silva Fennica vol. 16 no. 4 article id 5169
Heliövaara K., (1982) The pine bark bug, Aradus cinnamomeus (Heteropte.. Silva Fennica vol. 16 no. 4 article id 5168
Katainen H.-S., Kellomäki S. (1981) Effect of foliar application of dilute sulphuric.. Silva Fennica vol. 15 no. 3 article id 5123
Kellomäki S., (1981) Effect of the within-stand light conditions on t.. Silva Fennica vol. 15 no. 2 article id 5111
Luukkanen O., Johansson S. (1980) Flower induction by exogenous plant hormones in .. Silva Fennica vol. 14 no. 1 article id 5070
Mikola J., (1980) The effect of seed size and duration of growth o.. Silva Fennica vol. 14 no. 1 article id 5069
Koski V., (1980) On the variation of flowering and seed crop in m.. Silva Fennica vol. 14 no. 1 article id 5067
Nylund L., Haapanen A. et al. (1980) Radial growth of Scots pine and soil conditions .. Silva Fennica vol. 14 no. 1 article id 5056
Haapanen T., Hari P. et al. (1979) Effect of fertilization and thinning on radial g.. Silva Fennica vol. 13 no. 2 article id 5033
Huttunen S., (1978) The effects of air pollution on provenances of S.. Silva Fennica vol. 12 no. 1 article id 4983
Yli-Vakkuri P., Pelkonen P. (1976) Rooting of Scots pine needle fascicles with diff.. Silva Fennica vol. 10 no. 4 article id 4956
Kapustinskaité T., (1975) Ash content of peatland soils and stand growth i.. Silva Fennica vol. 9 no. 3 article id 4924
Päivänen J., (1974) The effect of ditch spacing and furrowing on dep.. Silva Fennica vol. 8 no. 4 article id 4908
Oskarsson O., Tigerstedt P. M. A. (1972) The possibilities in forest tree breeding II. Se.. Silva Fennica vol. 6 no. 3 article id 4869
Tormilainen M., (1972) Studies of flowering and cone crop in a seed orc.. Silva Fennica vol. 6 no. 2 article id 4868
Pohtila E., (1972) Effect of fine-grounded copper rock phosphate pl.. Silva Fennica vol. 6 no. 1 article id 4859
Rautiainen P., (1971) The effect of environmental and genetical factor.. Silva Fennica vol. 5 no. 4 article id 4856
Luukkanen O., Räsänen P. K. et al. (1971) The use of needle colour in predicting growth an.. Silva Fennica vol. 5 no. 4 article id 4853
Räsänen P. K., Hiltunen M. (1971) The effect of differences in Scots pine nursery .. Silva Fennica vol. 5 no. 3 article id 4847
Mannerkoski H., (1971) Effect of fertilization on the initial developme.. Silva Fennica vol. 5 no. 2 article id 4841
Seppälä K., (1971) The quantity of fertilizer and application metho.. Silva Fennica vol. 5 no. 2 article id 4838
Långström B., (1970) The effect of packing methods on the field survi.. Silva Fennica vol. 4 no. 1 article id 4813
Räsänen P. K., Koukkula A. et al. (1970) The effect of packing, storing and heeling-in on.. Silva Fennica vol. 4 no. 1 article id 4812
Gordon J. G., Gatherum G. E. (1968) Photosynthesis and growth of selected Scots pine.. Silva Fennica vol. 2 no. 3 article id 4771
Eklund B., (1967) Annual variation of increment in Scots pine and .. Silva Fennica vol. 1 no. 4 article id 4756
Hårdh J. E., (1966) Trials with carbon dioxide, light and growth sub.. Acta Forestalia Fennica vol. 81 no. 1 article id 7166
Huuri O., (1965) The effects of storage in cones on the viability.. Acta Forestalia Fennica vol. 78 no. 5 article id 7158
Heikurainen L., Seppälä K. (1965) Regionality in stand increment and its dependenc.. Acta Forestalia Fennica vol. 78 no. 4 article id 7157
Yli-Vakkuri P., (1960) Snow cover and ground frost in Finnish forests Acta Forestalia Fennica vol. 71 no. 5 article id 7114
Kallio K., (1960) Structure and development of Scots pine stands e.. Acta Forestalia Fennica vol. 71 no. 3 article id 7112
Kalela E. K., (1949) On the horizontal roots in Scots pine and Norway.. Acta Forestalia Fennica vol. 57 no. 2 article id 7398
Hertz M., (1929) Observations on annual and daily cycles in the h.. Acta Forestalia Fennica vol. 34 no. 18 article id 7231
Luomajoki A., (1993) Climatic adaptation of Scots pine (Pinus sylvest.. Acta Forestalia Fennica vol. 0 no. 237 article id 7683
Thammincha S., (1981) Climatic variation in radial growth of Scots pin.. Acta Forestalia Fennica vol. 0 no. 171 article id 7618
Chung M.-S., (1981) Flowering characteristics of Pinus sylvestris L... Acta Forestalia Fennica vol. 0 no. 169 article id 7616
Laine J., Mannerkoski H. (1980) Effect on fertilization on tree growth and elk d.. Acta Forestalia Fennica vol. 0 no. 166 article id 7604
Brown R. T., Mikola P. (1974) The influence of fruticose soil lichens upon the.. Acta Forestalia Fennica vol. 0 no. 141 article id 7575
Heikurainen L., Veijola P. (1971) Effect of fertilization and ditch spacing on reg.. Acta Forestalia Fennica vol. 0 no. 114 article id 7548
Räsänen P. K., (1970) The effect of lifting date, packing, storing and.. Acta Forestalia Fennica vol. 0 no. 112 article id 7546
Seppälä K., (1969) Post-drainage growth rate of Norway spruce and S.. Acta Forestalia Fennica vol. 0 no. 93 article id 7611
Yli-Vakkuri P., Räsänen P. K. et al. (1968) Cold-storage and its effects on the field surviv.. Acta Forestalia Fennica vol. 0 no. 88 article id 7188
Goude M., Nilsson U. et al. (2022) Comparing basal area growth models for Norway sp.. Silva Fennica vol. 56 no. 2 article id 10707
Kuehne C., McLean J. P. et al. (2022) A stand-level growth and yield model for thinned.. Silva Fennica vol. 56 no. 1 article id 10627
Haapanen M., Ruotsalainen S. (2021) Adaptive performance of genetically improved and.. Silva Fennica vol. 55 no. 5 article id 10534
Matala J., Kilpeläinen H. et al. (2020) Sawlog quality and tree dimensions of Scots pine.. Silva Fennica vol. 54 no. 3 article id 10389
Egbäck S., Karlsson B. et al. (2018) Effects of phenotypic selection on height-diamet.. Silva Fennica vol. 52 no. 2 article id 7738
Lehtinen M. T., Pulkkinen P. (2017) Effects of Scots pine paternal genotypes of two .. Silva Fennica vol. 51 no. 5 article id 7783
Egbäck S., Nilsson U. et al. (2017) Modeling early height growth in trials of geneti.. Silva Fennica vol. 51 no. 3 article id 5662
Hytönen J., Jylhä P. et al. (2017) Positive effects of wood ash fertilization and w.. Silva Fennica vol. 51 no. 3 article id 1734
Fedorkov A., Gutiy L. (2017) Performance of lodgepole pine and Scots pine in .. Silva Fennica vol. 51 no. 1 article id 1692
Vacek S., Vacek Z. et al. (2016) Structure, regeneration and growth of Scots pine.. Silva Fennica vol. 50 no. 4 article id 1564
Berlin M. E., Persson T. et al. (2016) Scots pine transfer effect models for growth and.. Silva Fennica vol. 50 no. 3 article id 1562
Moilanen M., Hytönen J. et al. (2015) Fertilization increased growth of Scots pine and.. Silva Fennica vol. 49 no. 3 article id 1301
Saarsalmi A., Tamminen P. et al. (2014) Effects of long-term fertilisation on soil prope.. Silva Fennica vol. 48 no. 1 article id 989
Pulkkinen P., Varis S. et al. (2011) Increasing survival and growth of Scots pine see.. Silva Fennica vol. 45 no. 4 article id 93
Pukkala T., Hokkanen T. et al. (2010) Prediction models for the annual seed crop of No.. Silva Fennica vol. 44 no. 4 article id 131
Bogino S., Fernández Nieto M. J. et al. (2009) Climate effect on radial growth of Pinus sylvest.. Silva Fennica vol. 43 no. 4 article id 183
Saksa T., Miina J. (2007) Cleaning methods in planted Scots pine stands in.. Silva Fennica vol. 41 no. 4 article id 274
Wennström U., Bergsten U. et al. (2007) Seedling establishment and growth after direct s.. Silva Fennica vol. 41 no. 2 article id 298
Huuskonen S., Hynynen J. (2006) Timing and intensity of precommercial thinning a.. Silva Fennica vol. 40 no. 4 article id 320
Kojola S., Penttilä T. et al. (2004) Impacts of different thinning regimes on the yie.. Silva Fennica vol. 38 no. 4 article id 407
Vanninen P., (2004) Allocation of above-ground growth in Pinus sylve.. Silva Fennica vol. 38 no. 2 article id 425
Varmola M., Salminen H. et al. (2004) Thinning response and growth trends of seeded Sc.. Silva Fennica vol. 38 no. 1 article id 436
Jacobson S., (2003) Addition of stabilized wood ashes to Swedish con.. Silva Fennica vol. 37 no. 4 article id 483
Pukkala T., Miina J. et al. (2002) Thinning response and thinning bias in a young S.. Silva Fennica vol. 36 no. 4 article id 524