By Roy A. Larson
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Additional info for Introduction to Floriculture
6 Aug. 13 Aug. 20 Aug. 27 Sept. 3 Natural flowering date Sept. 22-Oct. 9 Oct. 12-Oct. 21 Oct. 22-Nov. 1 Nov. 2-Nov. 11 r^Ibv. 12-Nov. 21 Nov. 22-Dec. 4 Dec. 2-Dec. 11 Dec. 12-Dec. 26 Dec. 27-Jan. 5 Plants are generally pinched 2 weeks after planting for the flowering dates shown. Adapted from Yoder Brothers (1968). a 26 ANTON Μ. KOFRANEK A Pinched Too Early B C Time Pinched Pinched Too Late Fig. 7. Natural flowering and spray formations of pompons as influenced by the date of pinching prior to the natural bud initiation date in the fall.
Rooting of carnations o c c u r s within 2 to 4 w e e k s d e p e n d i n g on the cultivar a n d m e d i u m temperature. At a 60°F m e d i u m temperature, cuttings root in about 3 w e e k s . Increasing the m e d i u m temperature to 70°F d e c r e a s e s rooting time 2 CARNATIONS 49 to 2 w e e k s . Rooting h o r m o n e s , s u c h as napthaleneacetic acid (NAA), e n h a n c e rooting. It is advisable to use p o w d e r , rather than liquid rooting h o r m o n e s , to reduce the c h a n c e s for the s p r e a d of p a t h o g e n s .
Total production in Kenya is 400 acres with sprays representing 350 acres. The majority of this p r o d u c t i o n is c o n c e n t r a t e d at o n e operation. III. VEGETATIVE GROWTH A. Propagation Cuttings can b e p u r c h a s e d f r o m specialty p r o p a g a t o r s w h o p r o d u c e culturea n d virus-indexed cuttings. S o m e growers p u r c h a s e clean cuttings a n d p r o d u c e their o w n stock in a mother b l o c k p r o g r a m . The mother block is kept isolated f r o m p r o d u c t i o n a n d is u s e d only for cutting p r o d u c t i o n .