Morphological characterization of Dendrobium orchid species ofEast Siang district of Arunachal Pradesh

Mahesh Reddy Duggireddy; Kalkame Ch Momin; V Bhargav; Sunil Kumar; Amit Singh; Arunkumar Phurailatpam

doi:10.24154/jhs.v19i2.1621

Authors

Mahesh Reddy Duggireddy College of Horticulture and Forestry, Central Agricultural University, Pasighat Author
Kalkame Ch Momin College of Horticulture and Forestry, Pasighat Author
V Bhargav College of Horticulture and Forestry, Pasighat Author
Sunil Kumar College of Horticulture and Forestry, Pasighat Author
Amit Singh College of Horticulture and Forestry, Pasighat Author
Arunkumar Phurailatpam College of Horticulture and Forestry, Pasighat Author

DOI:

https://doi.org/10.24154/jhs.v19i2.1621

Keywords:

Cluster, Dendrobium, evaluation, orchid, principal component analysis

Abstract

Fifteen species of Dendrobium orchids collected from different regions of East Siang district of Arunachal Pradesh, India were evaluated for 12 vegetative and flowering characters. Significant differences were observed amongst the Dendrobium species for all the traits. The species Dendrobium aphyllum recorded maximum plant height (93.87 cm), number of internode (31) and leaves/plant (13.67), inflorescence/plant (25.67), flower longevity on plant (20.67 days), whereas, flower longevity was recorded minimum (4.33 days) in Dendrobium jenkinsii. Maximum internode diameter (1.36 cm) was recorded in Dendrobium chrysotoxum; maximum leaf width (6.33 cm), inflorescence length (17.70 cm) was recorded in Dendrobium densiflorum. Maximum leaf length (16 cm), flowers/inflorescence (32.67) was recorded in Dendrobium thyrsiflorum, however, Dendrobium devonianum recorded highest flower length (6.03 cm). On the basis of overall performance, species Dendrobium aphyllum, Dendrobium densiflorum, Dendrobium thyrsiflorum were found promising for hanging baskets and Dendrobium nobile var. alba and D. nobile for cut flower purpose. Based on hierarchical clusters of the morphological traits, the Dendrobium orchid genotypes were grouped into two which is confined to principal component analysis.

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Author Biographies

Mahesh Reddy Duggireddy, College of Horticulture and Forestry, Central Agricultural University, Pasighat

Department of Floriculture and Landscaping Architecture, College of Horticulture and Forestry, Central Agricultural University, Pasighat
Kalkame Ch Momin, College of Horticulture and Forestry, Pasighat

Assistant Professor, Department of Floriculture and Landscape Architecture, College of Horticulture and Forestry, Central Agricultural University, Pasighat
V Bhargav, College of Horticulture and Forestry, Pasighat

Assistant Professor, Department of Floriculture and Landscape Architecture, College of Horticulture and Forestry, Central Agricultural University, Pasighat
Sunil Kumar, College of Horticulture and Forestry, Pasighat

Professor and Head, Department of Floriculture and Landscape Architecture, College of Horticulture and Forestry, Central Agricultural University, Pasighat
Amit Singh, College of Horticulture and Forestry, Pasighat

Assistant Professor, Department of Basic Sciences and Humanities, College of Horticulture and Forestry, Central Agricultural University, Pasighat 791102
Arunkumar Phurailatpam, College of Horticulture and Forestry, Pasighat

Associate Professor, Department of Floriculture and Landscape Architecture, College of Horticulture and Forestry, Central Agricultural University, Pasighat 791102

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