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Titolo:
PROVENANCE VARIATION IN SHOOT GROWTH COMPONENTS OF NORWAY SPRUCE
Autore:
SKROPPA T; MAGNUSSEN S;
Indirizzi:
AGR UNIV NORWAY,NORWEGIAN FOREST RES INST N-1432 AS NORWAY FORESTRY CANADA,PETAWAWA NATL FORESTRY INST CHALK RIVER K0J 1J0 ON CANADA
Titolo Testata:
Silvae Genetica
fascicolo: 2-3, volume: 42, anno: 1993,
pagine: 111 - 120
SICI:
0037-5349(1993)42:2-3<111:PVISGC>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Soggetto:
PINE FAMILIES; PICEA-ABIES;
Keywords:
PICEA-ABIES; PROVENANCES; SHOOT GROWTH COMPONENTS; ADAPTATION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
36
Recensione:
Indirizzi per estratti:
Citazione:
T. Skroppa e S. Magnussen, "PROVENANCE VARIATION IN SHOOT GROWTH COMPONENTS OF NORWAY SPRUCE", Silvae Genetica, 42(2-3), 1993, pp. 111-120

Abstract

The elongation of terminal shoots was measured during 2 growth seasons in a Norway spruce (Picea abies (L. ) KARST.) provenance trial, comprising 36 provenances. Significant variation was found between provenance regions for traits that characterize the timing and duration of thegrowth period, but not for the rate of growth. Provenances from the Nordic countries terminated their growth 20 days earlier in the summer than the provenances from Eastern Poland which had the latest growth cessation. The duration of the growth period accounted for the larger part of the variation in shoot growth (80%) among provenances, while the rate of growth was an equally important factor within provenances. The day of growth cessation, the duration of the growth period and total annual shoot growth were closely correlated to altitude for provenances originating along an altitudinal gradient, but no such correlationwas found between rate of growth and altitude. Within a provenance region in southern Poland the variation among provenances was exclusively in the timing and duration of the growth period. In another region in the Baltic countries, variation in the rate of growth was equally important as its duration for determining total shoot growth.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 01/12/20 alle ore 22:56:49