INFLUENCE OF DIAMETER OF CUTTINGS ON GROWTH AND STOCK QUALITY OF SOME PROVENANCES OF POPULUS CILIATA

摘要

One-year-old shoots from stool bed of Populus ciliata were collected in late fall to determine the influence of diameter of cuttings on growth, establishment and stock quality attributes of five provenances of P. ciliata in a nursery trial for two consecutive years during 1999 and 2000. Results of the analysis indicated that increase in diameter of cuttings significantly increased sprouting and survival per cent and number of roots. The cuttings of intermediate thickness (>15-20 mm) gave maximum juvenile growth at the end of growing season Provenance variation was also observed in growth and stock quality attributes of P. ciliata.