Effect of corm size and spacing on growth and flowering of gladiolus sp cv.white friendship

Author: 
Sudhakar, M And Ramesh Kumar, S

An experiment to study the effect of corm size and spacing on growth and flowering of gladiolus sp cv. white friendship under Tamilnadu condition was carried out the in Floriculture unit, Department Horticulture, Faculty of Agriculture, Annamalai University, Annamalainagar, during 2010-2011 with objectives of studying individual and interaction effects of different corm size viz., 3.5– 4.5 cm, 4.6-5.5 cm and above 5.5 cm and spacing viz., 30x20 cm, 30x25 cm and 30x30 cm on growth and flowering parameters. All nine possible combinations of the corm size and spacing were laid in combination as treatment in factorial randomized block design (FRBD) with three replications. The growth and yield parameters of gladiolus were significantly influenced by corm size and spacing adopted. Corm size of above 5.5 cm and spacing of 30x30cm were found excellent when compared to others. The interaction between corm size and spacing exhibited significant enhancement in growth and yield parameters. Combination of C3 x S3 with corm size of above 5.5 cm and spacing of 30x30cm has exhibited the highest values in growth parameters viz., plant height ( 77.44 cm), number of leaves per plant (6.50), leaf length (45.47 cm), leaf width (4.84 cm), and the yield parameters viz., days to spike emergence 74.66 (days), number of floret per spike (10.52), length of spike (65.59cm), florets diameters ( 8.64cm), florets length(6.58cm), diameter of corm (5.06 cm) and number of cormels (19.12) when compared with other treatment combinations.