TAILIEUCHUNG - Báo cáo khoa học: " Carry-over effect of gibberellins (GA and ringing ) 4/7 on female flowering in Norway spruce (Picea abies (L) Karst) seedlings"

Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp quốc tế đề tài: " Carry-over effect of gibberellins (GA and ringing ) 4/7 on female flowering in Norway spruce (Picea abies (L) Karst) seedlings. | Ann Sci For 1997 54 237-241 Elsevier INRA 237 Original article Carry-over effect of gibberellins GA4 7 and ringing on female flowering in Norway spruce Picea abies L Karst seedlings w Chalupka Polish Academy of Sciences Institute of Dendrology 62-035 Kórnik Poland Received 11 December 1995 accepted 7 May 1996 Summary - The second year after treatment effect of gibberellins GA4 7 and ringing on increased female flowering was observed in 13-year-old full-sibs of Norway spruce. This carry-over effect was exhibited independently by GA4 7 and ringing. GA4 7 significantly increased and ringing significantly decreased height growth increment of trees in a year of flower bud initiation. The influence of GA4 7 and ringing on flower initiation and height increment is discussed. Picea abies I first flowering carry-over effect GA4 7 ringing Resume Effets differes des gibbérellines 4 7 et de 1 annélation sur la floraison femelle de semis d epicea commun Picea abies L Karst . Deux années après traitement 1 effet de gibbérellines 4 7 GA4 7 et de Tannélation d ecorce sur la floraison femelle a été observe sur des descendants plein-freres de families d epicea commun. Cet effet differe se manifeste indépendamment en réponse à GA4 7 et à Tannélation. L annee d initiation florale GA4 7 augmente significativement 1 accrois-sement en hauteur des arbres tandis que Tannélation le diminue significativement. Les influences res-pectives de GA4 7 et de Tannélation sur I initiation florale et sur 1 accroissement en hauteur sont discutées. Picea abies I premiere floraison effet differe GA4 7 annélation Tel 48 61 170 033 fax 48 61 170 166 238 w Chalupka INTRODUCTION Cone induction in Norway spruce is not easy to attain and most of the positive results in the stimulation of flowering in that species have been obtained using grafted material both in the field and in greenhouses Luukkanen 1980 Chalupka 1985 . Bonnet-Masimbert 1987 1989 was the first to succeed in the stimulation of flowering in .

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