标题：Effect of environmental factors on the propagation of deciduous azalea by cuttings. II. Influence of an extended growth period on bud-break, overwinter survival and carbohydrate levels of rooted cuttings
摘要：The infl uence of stock-plant forcing in a greenhouse during spring, as well as an expandedphotoperiod and ground heating during autumn and winter, on post-rooting growth and overwintersurvival of cuttings was tested using cuttings from the deciduous azalea cultivar ‘Polārzvaigzne’. ThTh estock-plant forcing and extended lighting during the autumn supported the development of newshoots in the post-rooting period. During autumn, all starch stored in the leaves of cuttings wastransported to perennial parts of plant. During winter, the use of starch depended on temperature.A high temperature (10 °C) promoted depletion of starch in the stem of cuttings if it could not bereplenished. Additional light and heating promoted the retention of leaves and the photosynthesisability of cuttings. Overwinter survival was aff ected by environmental conditions during wintermainly, while stock-plant forcing did not signifi cantly infl uence survival. An extended light periodtogether with additional heating in winter improved overwinter survival of cuttings, but delayedtheir further growth in spring
