Abstract
Vegetative reproductive and corm characteristics of Gladiolus grandiflorus as affected by different corm sizes, large sized corm (3 to 3.5 cm), medium (2 to 2.5 cm) and to small (1 to 1.5 cm) were evaluated under natural agro-climatic conditions of Faisalabad. The experiment was laid out in accordance with Complete Block Design with two factorial arrangements. Regarding vegetative parameters it was observed that sprouting percentage, plant height, number of leaves per plant and days required for 25% flowers, large sized corm perfume the best as compared to medium and small sized corms with maximum values (96.67%), (56.02 cm) and (7.720) in variety red majesty (150.0 days) in variety Early Yellow respectively. Similar results were observed with reproductive characters, similar number of spikes per plant in both varieties in all corm sizes maximum thickness (1.023 cm) of spike was observed in cvs. Early Yellow when large sized corms, spikes of maximum length in both cultivars being 47.55 cm and 47.50 cm in cv. Red Majesty and 45.56 and 43.11 cm in cvs. Early Yellow respectively, a significant difference was also in observed in number of florets per spike and intact flower life. In case of corm characters more number of cormels per plant was produced by plants raised by corms of large sized and corms size was increased with increase corm size
Highlights
Gladiolus (Gladiolus grandiflorus) is among the leading cut flowers and occupies eighth position in international cut flower trade (Ahmad et al, 2008)
For combined effect of varieties the variety Red Majesty performed best Figure 4. Possible reason for this is that large sized corms have comparatively short dormancy period as compared to small sized ones which helped in quick emergence of gladiolus (Ogele et al, 1995)
Positive relationship occurs between the large sized corms (3 to 3.5 cm), vegetative and reproductive growth of Gladiolus grandiflorus cvs
Summary
Gladiolus (Gladiolus grandiflorus) is among the leading cut flowers and occupies eighth position in international cut flower trade (Ahmad et al, 2008). It is frequently used as cut flower in different social and religious ceremonies (Mitra, 1992). Gladiolus is very much liked for its majestic spikes which contain attractive, elegant and delicate florets. These florets open in a sequence over long duration and have a good keeping quality of cut spikes. There are many varieties of gladiolus available like White Friendship, T-210, Pink Parade, Traelor, Red Majesty, Aarti, Poonam, Hunting Song, Oscare, Praha.
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