Journal of Horticultural Sciences

Y. C. Raveendra ¹, A. M. Shirol ², B. S. Kulkarni ¹

Affiliations
1 Department of Floriculture and Landscape Architecture, K.R.C. College of Horticulture, Arabhavi, IN
2 AICRP (TF), K.R.C. College of Horticulture, Arabhavi- 591 218, Karnataka, IN

Abstract

An experiment was carried out to improve plant stature in daisy (Aster amellus L.) cv. Dwarf Pink using various growth regulators. Among the various growth promoters and their combinations tested, gibberellic acid (150ppm) and brassinosteroid (0.5ppm) application produced maximum vegetative growth, spike yield and vase-life. It is concluded that a combination of gibberellic acid (150ppm) and BR (0.5ppm) is helpful improving growth and quality in daisy cv. Dwarf Pink.

Keywords

Aster amellus L., Brassinosteroid, Gibberellic Acid, Naphthalene Acetic Acid.

Full Text

   

Naik Kirtimala ¹, S. K. Nataraj ¹, B. S. Kulkarni ¹, B. S. Reddy ¹

Affiliations
1 Biotechnology Centre, P.B.7648, Hulimavu, B.G. Road, Bangalore-560 076, IN

Abstract

A field study was conducted in gladiolus (Gladiolus hybridus Hort.) in the floriculture field of Department of Floriculture and Landscaping, KRCCH (University of Agricultural Sciences, Dharwad) during 2005-2006. Fourteen promising cultivars were planted under three environments, viz, shade-house, polyhouse and the open condition, and tested for various characters related to earliness. Genotypes x Environment interactions were significant for days to spike emergence and days from first floret to last floret opening. For days to corm sprouting, genotypes Sylvia (4.24), American Beauty (7.87), Candiman (9.6), White Prosperity and Priscilla (12.09) showed low mean values, i.e., early sprouting. For days taken from first to last floret opening, genotypes Eighth Wonder (15.87), Melody (14.51), Friendship (14.49), Pricilla (14.29), Pacifica (13.80), White Prosperity (13.80) and Vedanapoli (13.56) were stable, with high mean values. On the basis of mean performance, the genotype Vedanapoli was stable for number of daughter corms per plant (2.22). Genotypes Pacifica (6.13cm) and Eighth Wonder (6.09cm) were stable for corm diameter, with high mean values. Though 'Vedanapoli' showed unpredictable performance for average weight of corm, ten cormel weight and number of cormels per plant, it gave the highest corm yield per plant and showed predictable performance for corm diameter, exhibiting a great promise for hybridization with consistent corm yield outcome.

Keywords

Gladiolus, Stability, Environment.

Full Text

   

P. Hemanth Kumar ¹, B. S. Kulkarni ¹

Affiliations
1 Department of Floriculture and Landscaping, K.R.C. College of Horticulture, Arabhavi -591 310, Gokak, Belgaum Dist, Karnataka, IN

Abstract

Gladiolus Sylvia x Melody exhibited early corm-sprouting (6.82 days). The hybrid Melody x Summer Sunshine (84.63 cm), followed by American Beauty x Pricella (84.12 cm) were tall. Maximum stem girth was observed in American Beauty x Summer Sunshine (35.31 mm), followed by Vedanapoli x Magic (33.71mm) and American Beauty x Melody (33.47 mm). Number of leaves per plant was higher in Melody x Magic (9.62), followed by Salvia x Magic (9.49) and Melody x Vedanapoli (9.42). The length was maximum (67.32 cm) in Melody x Summer Sunshine followed by Summer Sunshine x Pricella (67.57 cm), American Beauty x Vedanapoli (67.00 cm) and Vedanapoli x Pricella (66.06 cm). The hybrid Salvia x Melody was earliest to initiate flower bud (60.58 days) and first floret opening (69.04 days). The total duration of flowering was maximum in Vedanapoli x Magic.

Keywords

Half-Diallel, Genetic Variability, Flowering, Gladiolus.

Full Text