Studies on Hyacinthus orientalis bulb production
1990
Aggad, H.O.
Five experiments were conducted to evaluate some vegetative methods of Hyacinthus orientalis propagation. Two growth regulators - daminozide (100, 250, 500 ppm) and promaline (25, 50, 100 ppm) as subtreatments were combined with three vegetative main treatments, namely intact, scooping and scoring. In another study the following methods were evaluated: control, scooping, scoring, divisions and hot water treatment. Scooping gave the highest number of bulblets per bulb and in general the largest total weight of bulblets per bulb. There was a significant interaction between the main treatments (scooping, scoring, intact) and the sub treatments (daminozide 100, 250, 500 ppm and promaline 25, 50, 100 ppm). Scooping combined with 250 ppm daminozide and scoring combined with 25 ppm promaline gave significantly the highest number of bulblets per bulb when compared to many treatment combinations. For twin scaling, the highest number of bulblets per bullb and the largest total weight was obtained from twin scales that were incubated under temperatures of 0-5 deg C, than transplanted into the greenhouse where the temperatures were 20-25 deg C
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