tailieunhanh - Báo cáo khoa học: "Establishment of explants from 200-year-old Quercus petraea in culture"

Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp quốc tế đề tài: Establishment of explants from 200-year-old Quercus petraea in culture. | 336s Ann Sci For 1993 50 Suppl 1 336s-339s Elsevier INRA Original article Establishment of explants from 200-year-old Quercus petraea in culture s Mac An tSaoir1 M Kabrianis 2 Department of Agriculture for N Ireland and Department of Agricultural Botany Queen s University Newforge Lane Belfast BT9 5PX UK technological Education Institute Heraklion Crete Greece Summary As part of the ongoing EC-Cost 87 Woody Plant Research Program methods of establishing mature material of Quercus petraea Mattuschka Lieblein in culture were examined. Unopened buds taken from shoot tips were difficult to disinfect. Shoots produced from branch segments under mist established well in culture but increasing branch age and decreasing branch diameter reduced shoot production. Shoots produced from buds that had flushed inside transparent plastic bags while still attached to the tree established well in culture. Explants established in culture produced more shoots under light containing a high proportion of the red spectrum. Quercus petraea I tissue culture mature light Resume Multiplication vegetative de chêne sessile âgé de 200 ans. Les methodes de multiplication d arbres adultes de Quercus petraea Mattuschka Lieblein ont été mises au point dans le cadre du groupe de recherches EC-Cost 87. Les bourgeons apicaux encore formes sont difficiles à desinfecter. Les pousses produites à partir de branches sous mist peuvent être mises en culture dans de bonnes conditions cependant la production de pousses décroĩt avec I age de la branche et le diamètre des pousses. Les pousses développées à partir de bourgeons ayant débourré dans des sacs en plastique alors qu elles sont toujours attachées à I arbre se maintiennent correctement en culture. Les explants mis en culture produisent plus de branches sous une lumière ayant un spectre riche dans le rouge. Quercus petraea culture de tissu maturíté lumière INTRODUCTION This paper describes 3 methods used to establish cultures from explants of mature .