Effect of IBA and planting time on propagation of Rose (Rosa hybrida Vill.)
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Date
2017
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Punjab Agricultural University, Ludhiana
Abstract
The present study entitled, “Effect of IBA and planting time on propagation of rose (Rosa
hybrida Vill..)” were carried out at Landscape Nursery, Punjab Agricultural University. Rose
is the number one cut flower of the world, belonging to family Rosaceae, genus Rosa. The
conventional method of rose propagation involves budding on one year old field established
rootstock plants. For multiplication of plants, cutting is simplest way of propagation for
desirable varieties. There are relatively few varieties that develop roots, so exogenous
application of growth promoters is essential. In order to study the effects of different
concentrations of IBA (0, 500, 1000 and 1500 ppm) on rooting of different varieties (English
Holiday, Eiffel Tower, Don Don, Confetti and Iceberg) of rose during planting times viz.
February, July, October and December, an experiment was conducted in factorial completely
randomized design (FCRD) using semi-hardwood cuttings. It was found that 500 ppm IBA
resulted in maximum number of roots (15.66), number of leaves (22.33), the percentage of
survival (50%), shoot length (13.23 cm), fresh weight of roots (4.80 g), leaves (8.13 g) and
stem (5.93 g), dry weight of roots (4.36 g), leaves (5.13 g) and stem (4.33 g) and took
minimum days (13) for leaf bud initiation whereas maximum root length (7.80 cm) was found
in 1000 ppm IBA, but control treatment had the lowest effect on the traits of rooting in rose
cutting. Among different varieties, Eiffel Tower was found to be best in terms of different
traits, whereas variety English Holiday and Confetti didn't respond to any of the planting
times and treatments. Cuttings planted in February showed the highest effect on their
evaluated traits with a significant difference with those planted in July and October, whereas
in December planting time, zero survival rate was observed.
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