1976
DOI: 10.1111/j.1399-3054.1976.tb03923.x
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The Physiology of Rooting Populus Cuttings

Abstract: The changing levels of carbohydrates and the rates of photosynthesis in rooting Populus cuttings are described. The cuttings were planted in a sand medium, in controlled environment conditions. There was no evidence to support the view that failure to root in P. tremula was caused by insufficient carbohydrate reserves. In leafless hardwood cuttings, the carbohydrate levels were initially very high (14–19%) but fell rapidly (to 5–10%) as roots, callus or shoots developed. In leafy softwood cuttings, a steady ac… Show more

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Cited by 74 publications
(34 citation statements)
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“…Rooting percentage was reduced by high irradiance in the 20 and 30 cm 2 treatments, but increased by high irradiance in the 10 cm 2 treatment. These results are consistent with the suggestion that variation in leaf area influences rooting through a balance between the processes of transpiration and photosynthesis (Okoro and Grace 1976;Eliasson and Brunes 1980). The reduction in rooting in the 20 and 30 cm 2 treatments under high irradiance may be attributed to the occurrence of more pronounced water deficits, which limit carbon fixation.…”
Section: Methodssupporting
confidence: 80%
“…Rooting percentage was reduced by high irradiance in the 20 and 30 cm 2 treatments, but increased by high irradiance in the 10 cm 2 treatment. These results are consistent with the suggestion that variation in leaf area influences rooting through a balance between the processes of transpiration and photosynthesis (Okoro and Grace 1976;Eliasson and Brunes 1980). The reduction in rooting in the 20 and 30 cm 2 treatments under high irradiance may be attributed to the occurrence of more pronounced water deficits, which limit carbon fixation.…”
Section: Methodssupporting
confidence: 80%
“…A problem in the vegetative propagation of aspen, especially the P. tremula clones, is the insufficient rooting ability of hardwood cuttings compared to poplars of, for (OKORO and GRACE, 1976;HARTMANN et al 2002). In preliminary investigations, the possibility of transferring rooting ability by crossing aspen with poplar clones was shown on a diploid hybrid plant derived from crossing P. tremula x P. tremuloides L 290 x P. pseudosimonii Pps1 (Populus x Tacamahaca).…”
Section: Production Of Triploid Plants By Crossbreeding In the Greenhmentioning
confidence: 99%
“…It has been shown, that in softwood and semi-hardwood cuttings in woody plants the amount of reserves is usually a limiting factor for survival and further growth (Okoro and Grace 1976). In rose, single node leafy stem cuttings, have also limited storage capacity due to the small size of the shoot.…”
Section: Introductionmentioning
confidence: 99%