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- Title
Effect of Gamma Irradiation on Vegetative and Floral Traits in Gladiolus (Gladiolus hybrida L.).
- Authors
PAWADASHETTI, DEEPA V.; KUMARI, R. VASANTHA; SHANTHALA, J.; THIMMARAYAPPA, M.
- Abstract
A study was carried out in the Floriculture unit,Department of Horticulture, UAS, GKVK Bengaluru from 2020-2022 on ‘Investigation and identification of elite mutants induced through physical mutagen for floral traits in gladiolus (Gladiolus hybrida L.)’. The experiment was laid out in a factorial randomized complete block design with eighteen treatments replicated thrice. Six gamma doses i.e., 15 Gy, 25 Gy, 35 Gy, 45 Gy, 55 Gy and control (untreated) as treatments were imposed on three varieties of gladiolus viz., Arka Gold, Arka Pratham and Arka Amar. Number of days taken for sprouting was delayed with increased gamma dosage. Maximum days for sprouting (18.60) was observed in var. Arka Gold treated with 55 Gy and minimum days for sprouting was observed in untreated var. Arka Pratham (9.13). At lower dosage, plant height was increased and at higher dosage it was reduced. Maximum plant height was obtained in var. Arka Amar treated with 25 Gy (146.33 cm) and shorter plants were observed in var. Arka Pratham treated with 55 Gy (20.80 cm). Highest number of leaves were recorded in 25 Gy. Maximum rachis length (58.40 cm), length of the spike (120.07 cm), number of floret per spike (18.20) and floret diameter (11.13 cm) were recorded with 25 Gy . Among different treatments, corm treated with 25 Gy of gamma dosage had performed better over other treatments.
- Subjects
GLADIOLUS; DRUG dosage; PATIENT compliance; BLOCK designs; MUTAGENS
- Publication
Mysore Journal of Agricultural Sciences, 2022, Vol 56, Issue 4, p148
- ISSN
0047-8539
- Publication type
Article