a study of Scots pine and Norway spruce seedlings grown under different nursery conditions
Seasonal variation of pigments in needles.
Faculty of Forest Sciences, Sveriges lantbruksuniversitet.
Studia forestalia Suecica
Official URL: http://www-umea.slu.se/bibum/studia/
The influence of growing conditions upon the pigmentation in needles from seedlings of Scots pine and Norway spruce has been studied. The plant material was grown either in the open or in plastic greenhouses. The greenhouses were covered with plastic during the vegetation periods from May to August, and during the rest of the year the 'greenhouse' grown seedlings were exposed to outdoor conditions. A pronounced seasonal variation of both chlorophyll and carotenoids was found. The content of pigments was influenced also by growing conditions, plant age, needle age and origin of the seed source. The new technique of growing coniferous seedlings in greenhouses during the vegetation period does not seem to have any harmful effect on the seedlings, as far as the pigmentation of the needles is concerned. Since the seasonal discoloration of needles is many cases can resemble changes caused by nutrient deficiencies, caution should be exercised whenever the needle color is used as an index of the physiological state of nursery stocks.
|Title:||Seasonal variation of pigments in needles|
|Subtitle:||a study of Scots pine and Norway spruce seedlings grown under different nursery conditions|
|Series/Journal:||Studia forestalia Suecica (0039-3150)|
|Year of publishing :||1972|
|Number of Pages:||37|
|Place of Publication:||Stockholm|
|ISBN for printed version:||91-38-01383-5|
|Full Text Status:||Public|
|Subjects:||ZZZ Don't use any more: Subject categories for Swedish research publications > FORESTRY, AGRICULTURAL SCIENCES and LANDSCAPE PLANNING > Plant production > Plant breeding|
ZZZ Don't use any more: Subject categories for Swedish research publications > FORESTRY, AGRICULTURAL SCIENCES and LANDSCAPE PLANNING > Plant production > Plant and forest protection
|Keywords:||Scots pine, Norway spruce, needles, seedlings, nursery, greenhouses, conifers|
|Divisions:||Faculty of Forest Sciences|
|Deposited By:||Skogsbiblioteket Umeå|
|Deposited On:||22 Feb 2011 00:00|
|Metadata Last Modified:||03 May 2013 08:05|
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