Introduction
This paper is primarily a review of published reports on the propagation of spruce by stem cutting. Because of space limitations, the reviewer will not summarise all works known to him, but instead make comments to cover several papers with a common subject. Previous reviews on rooting cutting of spruce include those of Forestry Abstracts, 1941; Meahl, 1957; and Ferguson, 1968
Propagation of Picea by cuttings is a problem which, as Ferguson (1968) indicated, "seems to come from the fact that many variables are involved, and to different propagators the variables take on different degrees of importance. This may be due to the fact that what he is doing is most important, or maybe one variable gave the best result for him so he thinks it should be the most important for all who are rooting Picea . . ."
Because the variables which influence rooting and early growth of cuttings of spruce are numerous, only those which I consider most important will be mentioned herein. These include: species, population, individual, age of ortet, position of cutting on the tree and branch, type and length of cutting, time of year, chemical treatment, rooting medium, and temperature of the air and of the rooting medium.
IntroductionThis paper is primarily a review of published reports on the propagation of spruce by stem cutting. Because of space limitations, the reviewer will not summarise all works known to him, but instead make comments to cover several papers with a common subject. Previous reviews on rooting cutting of spruce include those of Forestry Abstracts, 1941; Meahl, 1957; and Ferguson, 1968Propagation of Picea by cuttings is a problem which, as Ferguson (1968) indicated, "seems to come from the fact that many variables are involved, and to different propagators the variables take on different degrees of importance. This may be due to the fact that what he is doing is most important, or maybe one variable gave the best result for him so he thinks it should be the most important for all who are rooting Picea . . ."Because the variables which influence rooting and early growth of cuttings of spruce are numerous, only those which I consider most important will be mentioned herein. These include: species, population, individual, age of ortet, position of cutting on the tree and branch, type and length of cutting, time of year, chemical treatment, rooting medium, and temperature of the air and of the rooting medium.
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