Download Full PDF - 21.17 MB - The Society of Irish Foresters
Download Full PDF - 21.17 MB - The Society of Irish Foresters Download Full PDF - 21.17 MB - The Society of Irish Foresters
27The Tutkestan Pyramidal Poplar-I". Bolleana Lauch.A tall tree with a parrow pyramidal crown and light grey barkand differs from the previously-mentioned poplar only by its pyramidalcrown. It grows rapidly and develops a well-shaped stem. Can begrown in regions subject to dr.)ught but gets frosted towards the ncrth.It is meful for shelter belts.This species may i)e growf'. f!'om root cuttings and root suckers; stemcuttings have a low percentage survivaLThe Naryn Poplar-I". Hybrida M.B.The leaves of this species are like P. aLba. The matured shoots arepubescent and root shoot:; quite glabrous. Aspen-like flattened leaf petioles,buds small, bark yellowish and somewhat scaly. Twigs have at firstgrey down covering but are later glabrous.The Laurel-Leaved Poplar- I". Laurifolia. Ledeb.A tree which reaches a height of 82 ft. with a thick, fairly smooth.tapering stem and a branchy, broad crown. Bark, grey and fissureddeeply. The young greyish-yellow or straw-yellow shoots are stronglyribbed, dele to longitudinal (!orky growths. The buds Ilre brownishgreen, up to 4", acuminate and viscid. The leaves are ovate or lanceolate,tapering grDdu"llly, rounded at the base, glabrous, with glandularteeth .along the margin, green on top, shining, dull whitish below. Theflowering and leaf flushing take place simultaneously. The mille catkinsare purple, the style has a two-lobed stigma with revolute lobes.This poplar usually grows along river valleys and sometimes onlake shore sandhills. It is tolerant regarding climatic conditions andgrows well from cuttings. Its tolerance and capacity for ~rowing largewell-shaped stems, indicates that this tree might be used for growingtimber.The Chinese or Eastern Poplar- I". Simonii. Carr.Not a particularly large-growin.c; tree The young reddish-brownshoots turn yellowish-browr. when more mature; tr.ey are strongly ribbedat their attachment to the leaves and have large lenticels. Traces of theribs, in the form of a peculiar design. remain for a long time on thesmooth, steel-grey colour of the bark. The brownish-tinged buds arelarge, adpressed and viscid. The leaves on the lateral shoots are usuallythin and somewhat pendant; on the twigs they are large and oval,tapering to both ends; on leading shoots and stool shoots they are largerand broadly ovaL The prominent red nerves on the upper li~ht-greensurfaces of the leaves nre typie
28able are those which are cut from the crowns of trees. It has beenproved experimentally that cl,lttings taken from sto.cks which have originallybeen grown from seedlmgs and not from cuttmgs, are the best andit therefore follows that parent stock plantations should be formed byplanting out seedlings. This method is however still in its infancy andthe parent stock plantation will have to be formed by planting out cuttings.The Soil and its Preparation.The soil must be very fE:rtile and the moisturp conditions satisfactory.The soil under the plantation is worked in the same way as thatunder nursery stock.It is recommended that the cuttings be planted ai the. following~pac in gs:-(a) For growing rooted r.uttings 1'1 the course of a single year-2'between the rows and 10 ' in the rows (26,000 per acre).(b) For growing rooted cuttings over " period of two years-30"between the rows and 10" in the rows 09.600 per acre).(c) For growing one year stool shoots fO l' cuttings by stumping themback annually-30" tn 40 " between nnd in the rows. (4,350 to3,670 per acre).The above dimensions completely mee' the needs of mechanicalworking in tending the plantation and lifting' the material.Stem cuttings should be taken from selected parent poplars distinguishedby the most rapid growth, well-shaped stems. slight branchiness,frost-hardiness, immunity forn diseases and capacity to re'sist drqught.The cuttings should be 8" to 10" long insufficiently moist regions and12" to 14" in dry regions.The Technique of Linin!: Out.The cuttings are inserted vertically with the morphologically loweror 'thicker end beneath. Above the surface the end of the rutting pretrudesif' to 1:\" with one normally developed undamaged bud. Thecuttings should be well firmed. The opening of the line to receive thecuttings should be dene with an iron dibble.Lin.ing out should take pla(;e when the buds begin to swell. i.e., aboutthe second or third week in April. and it should cease when the budscommence to flush.Weeding and loosening of the soil should be done thnef, or four timesduring the growing season-care should be taken not to damage thesurface roots of certain species. In prolonged drought the plantation ~should be watered copiously.The treatment of the stool shoots consists in thinning them out annually,commencine from the second stumping. There should be fiveor six well-developed shoots left on the stumps.PREPARATION OF POPL.4R STEM CUTTINGS.Place and Method of Collection.The shoot, of poplars for cuttings, a,; we have seen, can bE" suppliedin the parent stock poplar plantations ,either by ~tumping the stool shootswhich have grown up in the form of bushes from rooted cuttings orseedlings, or by pollarding the crowns of special parent trees.The stumping of the stool shoots or the pollarding of the crownsmust be'. done annually r,ecause one-year stool shoots are required forcuttings, as that ensures a large out-turn of cuttings and their highestsurvival capacity.Stool shoots which have been grown in the form of bushes froinrooted cuttings, in the· first year are severed from the stump no .'1igherthan 2i" to 4" from the parent cutting, and each succeeding year 110higher than 2" to 3f' from the stubs of the previous cut.In the plantations. those rooted cuttings are not cut from the stumpswhich are to be the future parent poplars for the provision .of 'cuttingsby the method of crown pollarding. The future trees are left at an equalspacing between the rows and in rows of from 19 to 23 feet. In'the first year in the case ')f rooted cuttings which are to make the future
- Page 1 and 2: IRISIHIIFORESTRYPublished byTHE SOC
- Page 3 and 4: SOCIETY OF IRISti FORESTERSPRESIDEN
- Page 5 and 6: 4journal, to remain popular, must .
- Page 7 and 8: 6tive of the Russian investigators
- Page 9 and 10: 8Brown Eartha.1 wish now to refer t
- Page 11 and 12: 10wherever it may occur, soils of p
- Page 13 and 14: 12NISBET'S OBSERVATIONS ON IRISH FO
- Page 15 and 16: 14of Silver Fir and any species of
- Page 17 and 18: Samples of Costs and Revenues.16Var
- Page 19 and 20: 18Whalley Abbey, both in Co. Wicklo
- Page 21 and 22: 20heather shoots are stimulated and
- Page 23 and 24: 22~ee a patchwork of grey stoney gr
- Page 25 and 26: 24in these cups that the seeds deve
- Page 27: 265. They reprrJduce themselves fre
- Page 31 and 32: 30of gr
- Page 33 and 34: •32takes the seed with. it and co
- Page 35 and 36: 34~ which have been used agricultur
- Page 37 and 38: 36The Planting Material.Planting of
- Page 39 and 40: !38financial assistance were define
- Page 41 and 42: ~oposal to increase the forest area
- Page 43 and 44: 42Annual General Meeting, 1945The t
- Page 45 and 46: 44survive. They do not appreciate t
- Page 47 and 48: 46He stressed the desirability of m
- Page 49 and 50: 48point of view. I feel that the fi
- Page 51 and 52: 50'" Diver, Neil, Rathdrum, Co. Wic
27<strong>The</strong> Tutkestan Pyramidal Poplar-I". Bolleana Lauch.A tall tree with a parrow pyramidal crown and light grey barkand differs from the previously-mentioned poplar only by its pyramidalcrown. It grows rapidly and develops a well-shaped stem. Can begrown in regions subject to dr.)ught but gets frosted towards the ncrth.It is meful for shelter belts.This species may i)e growf'. f!'om root cuttings and root suckers; stemcuttings have a low percentage survivaL<strong>The</strong> Naryn Poplar-I". Hybrida M.B.<strong>The</strong> leaves <strong>of</strong> this species are like P. aLba. <strong>The</strong> matured shoots arepubescent and root shoot:; quite glabrous. Aspen-like flattened leaf petioles,buds small, bark yellowish and somewhat scaly. Twigs have at firstgrey down covering but are later glabrous.<strong>The</strong> Laurel-Leaved Poplar- I". Laurifolia. Ledeb.A tree which reaches a height <strong>of</strong> 82 ft. with a thick, fairly smooth.tapering stem and a branchy, broad crown. Bark, grey and fissureddeeply. <strong>The</strong> young greyish-yellow or straw-yellow shoots are stronglyribbed, dele to longitudinal (!orky growths. <strong>The</strong> buds Ilre brownishgreen, up to 4", acuminate and viscid. <strong>The</strong> leaves are ovate or lanceolate,tapering grDdu"llly, rounded at the base, glabrous, with glandularteeth .along the margin, green on top, shining, dull whitish below. <strong>The</strong>flowering and leaf flushing take place simultaneously. <strong>The</strong> mille catkinsare purple, the style has a two-lobed stigma with revolute lobes.This poplar usually grows along river valleys and sometimes onlake shore sandhills. It is tolerant regarding climatic conditions andgrows well from cuttings. Its tolerance and capacity for ~rowing largewell-shaped stems, indicates that this tree might be used for growingtimber.<strong>The</strong> Chinese or Eastern Poplar- I". Simonii. Carr.Not a particularly large-growin.c; tree <strong>The</strong> young reddish-brownshoots turn yellowish-browr. when more mature; tr.ey are strongly ribbedat their attachment to the leaves and have large lenticels. Traces <strong>of</strong> theribs, in the form <strong>of</strong> a peculiar design. remain for a long time on thesmooth, steel-grey colour <strong>of</strong> the bark. <strong>The</strong> brownish-tinged buds arelarge, adpressed and viscid. <strong>The</strong> leaves on the lateral shoots are usuallythin and somewhat pendant; on the twigs they are large and oval,tapering to both ends; on leading shoots and stool shoots they are largerand broadly ovaL <strong>The</strong> prominent red nerves on the upper li~ht-greensurfaces <strong>of</strong> the leaves nre typie
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