Journal of Ornamental Horticulture
Year : 1998, Volume : 1, Issue : 1
First page : ( 26) Last page : ( 31)
Print ISSN : 0972-0499. Online ISSN : 2249-880X.

Coerelation and Path-Coefficient Studies in Gladiolus over Different Environments

Raj R.L. Desh, Misra H.C. Saini, Dohare S.R.

Division of Floriculture & Landscaping, IARI, New Delhi-110 012

Abstract

Correlation and path-coefficient analysis were carried out among 25 diverse genotypes of gladiolus for 20 characters related to growth and flowering those were grown at three locations in 1994. Pooled analysis of variance revealed that location x treatment interactions were significant for all the characters, except propagation coefficient. Significant positive association of number of florets per spike was observed with rachis length in all the three environments and pooled values. It also showed positive significant association with plant height in all the environments. Number of florets per spike showed positive significant correlation with durability of whole spike. Path-coefficient analysis showed a lot of differences from one environment to another due to presence of high genotype × environment interaction. The differences were so pronounced that not only the magnitude that changed but it changed the direction in certain characters. Results of pooled analysis revealed that plant height, rachis length and durability of whole spike have direct effects towards number of florets per spike. Therefore, single plant selection for these traits will be useful for improvement in number of florets per spike.

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Keywords

Correlation, path-coefficient, gladiolus.

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