Rhododendron Society of Canada Soci6t6 \ Canadienne du Rhododendron

More documents

Recommendations

Info

$Bulletin 1978 Soci6t6 \ Canadienne du Rhododendron$

$Rhododendron Society of Canada Soci6t6 \ Canadienne du Rhododendron$

Page 4 GREENHOUSE PROPAGATION OF KNAP HILL AZALEA CULTIVARS D.L. Craig and A.C. Brydon Kentville, N.S. I'he performance of the Knap Hill azaleas (Phillips& Barber 1967) at Kentville has been outstanding. 1'hey have proven hardy and disease free. The different cultivars provide a wide range in flower color and plant form. Although the Knap Hills are well suited to this area they are not readily available from the local nurseries. l-he Kentville Research Station is attempting to make a limited quantity of stock available to local nurseries and to improve methods of propagation. -l'his paper deals with the propagation of Knap Hill azaleas under greenhouse conditions. Malerials and Methods Soft wood cuttings were removed from the following Knap Hill cultivars on July 6, 1973: Brazil, Fawley, Gallipoli Red, Gibraltar, Ginger, Gold Flake, Kathleen, Old Gold, Scarlet Pimpernel and Sun Chariot. All cuttings were treated with rooting hormone powder and a fungicide (Stim-Root No. 1 containing 2.5o/o Beniate WP). 1'he cuttings were planted in a 1:1 peat sand mix, placed under controlled mistwith 70'F (21.1'C) bottom heat provided by an electrical cable. l'he rooted cuttings were potted up September 8, 1973 and placed in a glasshouse where the temperature was maintained at 70oF (21.1'C) during the day and 60"F (15,6"C) at night. A 16-hr photoperiod was provided by 100 W incandescent lamp hung 2 ft (.6 m) above the plants and spaced 3 ft (1 m) apart. These plants made sufficient growth by November to permit the taking of cuttings. Soft wood cuttings were removed each month from November to May inclusive and treated as per the original cuttings. Results Each field grown cultivar provided eight or more cuttings. All ten cultivars rooted 1000/o except Brazil which rooted 930/0.'l-hese rooted cuttings produced 555 new cuttings during the period of November 1973 to May 1974. l-he number of cuttings produced per original rooted cuttings varied from 9.3 from Sun Chariot to 2.8 for Fawley. 1'he percent that rooted also varied. 1-he range was 860/o for Brazil to 44o/o for Ginger (1'able 1). l'he number of cuttings produced per month varied. December's production of 17 was the lowest followed by January with 27. Production increased markedly as the natural daylength increased. 72o/o of the cuttings were produced during March, April and May ('l-able 2). l'he cultivar Old Gold was the most precocious cultivar on test. Follorving rooting of the original cuttings, it produced 19 new cuttings during November which in turn rooted 100%. 'l'he next best November production was 5 from 8 Sun Chariot plants (1'able 2). 1'he plants produced from the July 6, 1973 cuttings were removed from the greenhouse early in June 1974 and planted outdoors in a nursery. Vegetative growth had slowed considerably by June and the stem tissues had turned woody. ln less than a year the various cultivars had produced numerous cuttings plus at least 12 in (30 cm) of growth, which in many cases terminated with a flower bud (Fig. 1).
'eZ6t'9 ,{tnl ue1e1 s6ur1 -]nc uroJj nLil'OL êf{ ol e/6! 'gt ôN uJoJl osnoqueet6 ur peloo.r puE pecnpord s6url}nC, e/6f 'g ldos dn peuod :e/6! '9 Ilnf uo slupld urvro.rb pler; ornleu ulorl poôuJor s6urunC, 89 89 8L Z9 6L 8'9 ,L te 9L 6e ,n e'e 6L 8'Z ,L 9'Z oL 6t 98 Zt, 8'6 L'9 9'8 9't z9 I Y 9e Y E 8'Z 8'e patoor paloor 6u;pnc .ou zo/o ;eu;6gro '6aV rad pecnpord s6uUnc 'ou '6^v TL L9 96 9' z9 t9 tt !b Lb 6t s6ut[nc peloor luBld olo pta!l urorf pecnpord s6ulpnc 'ou 00t I 00r 0t 00t tt 00t 0r 00t 0t 00t zL 00t zl 00t 0t 00t zl DO LI 8 0t tt 0t 0r zt 0t zt VL ]ouBrlc uns lau.raoujrd lelJe3s ptoe pto ueelqlPy etBH ptoc Je6ulC rellerqre pau rloorlleo êlmPJ ltzPlg palooJ sluBld te^lllnC 'oN plell luo,ll ,sbu;ggnc 'oN zlelol 'suollrpuoo asnoqueerb Japun slueld lupllnsel uorl s6urllnc 1o 6ur -loor eql pue slueld ur*ol6 plar1 urorl s6urllnc Je^rllnc polezp lllH deuy lo Ourloou .t 3.lSVl 'luesald spnq re/noll aerLl_L',plog plO, re^t1nc eelezp plo-lpal-eug'1 613 g a6e6
Page 1 and 2: Rhododendron Society of Canada .*^"
Page 3 and 4: Rhododendron Society of Ganada >--
Page 5: '(tgZFrcS, - gl7 eety) euoqdola.1 '
Page 9 and 10: 'paes oLll 6uglca;;oc u! palslsss o
Page 11 and 12: trrorl lcullsrp pue aleredes 'tg6l
Page 13 and 14: 'uopltg 'H'd :olotld 'uep:e6 uollep
Page 15 and 16: lr lng 'salllllqedec.rno ultll!^t\
Page 17 and 18: ialll^lua) uo,vr poo6 eql dn deey '
Page 19 and 20: Page 16 FROM FLOWER TO YOUNG PLANT
Page 21 and 22: Page 1 8 ON JURIES, JUDGING AND AWA
Page 23 and 24: Page 20 A REPORT ON THE (SLTDE) LIB
Page 25 and 26: Page 22 BREEDING RESEARCH - A NEW P
Page 27 and 28: Page 24 Van Veen Nursery 4201 S.E.
Page 29 and 30: Page 26 Toronto, Ontario On Wed. Ma
Page 31 and 32: Page 28 New Members i I I I II Arno

Rhododendron Society of Canada Soci6t6 \ Canadienne du Rhododendron

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?