Relationship analysis among intergeneric hybrids of Ascocentrum based on floral characters

Authors

  • Katare Renuka Shamrao ICAR, Directorate of Floricultural Research, Pune, Maharashtra, India
  • Sobhana A ICAR, Directorate of Floricultural Research, Pune, Maharashtra, India

Keywords:

Floral character, Intergeneric hybrid, Cluster analysis, Ascocentrum, Mokara, Ascocenda, Vascostylis, Kagawara

Abstract

A study was undertaken for characterizing 30 intergeneric hybrids of Ascocentrum orchid based on floral characters and cluster analysis. The results showed that variety V25 (Mokara Syam Ascocenda Doung Porn) produced more number of spikes/plant/year (7.86), whereas, variety V11 (Vascostylis Blue Bay White) produced more number of florets/spike (40.67). Hybrid V3 (Ascocenda Kultana × Vanda Bitzs Heartthrob) had highest length (9.33 cm) and width (9.00 cm) of flower. Cluster analysis with 14 floral characters was done by classifying hybrids/varieties into 12 groups. Cluster 2 and 5 had five members, whereas, cluster 11 and 12 with only one member each. The cluster 2 and cluster 5 were less similar to each other with an inter-cluster distance 6.27,whereas highest inter-cluster distance was observed in cluster 6 and cluster 10 (41.47). Cluster 10 had high mean values for spike length (51.12 cm), flower length (7.94 cm) and width of flowers (7.50 cm). whereas cluster 6 which included V6 (Ascocenda Sirichi Fragrance) and V11 (Vascostylis Blue Bay White) had lowest internodal length with the highest value for number of florets/ spike. This cluster also observed to have low flower length and width (2.52 cm and 2.42 cm, respectively). This indicated that these varieties produce flowers in the dense bunch.

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References

Jadhav DP, Dalal NR, Saha TN, Kadam GB, Jadhav PR, and Nimbalkar RD, 2024. Efficient in-vitro regeneration protocol in chrysanthemum (Chrysanthemum morifolium) from ray florets. Current Horticulture 12 (2), 28–32.

Tanveer FM and Mohammad GR. 2010. Assessment of genetic diversity among orchids using morphological characters. Available at: https://www.pollinia. org/april2015/articles/miano.pdf [Accessed on 29/6/2019].

Sunitha, Sheela M.N., Suresh J.Kumar and Makeshkuma T. 2023, Morphological and physiological responses of CMD resistant cassava(Manihot esculenta) genotypes to nutrient regimesS. Current Horticulture 12(2): 33-37.

Kadam GB, Desai P, Raju DVS, Kumar PN, Saha TN, Kumar J and Prasad KV. 2023. Evaluation of genetic variability in fragrant rose (Rosa× hybrida) cultivars under open field cultivations. Current Horticulture 11 (2): 33–38.

Kasutjianingati K & Firgiyanto R. 2018. Characterization of morphology from orchid Vanda sp. as a genetic information source for preservation and agribusiness of orchids in Indonesia. IOP Conference Series: Earth and Environmental Science 207. 012006. 10.1088/1755-1315/207/1/012006.

Deepa T. 2017. Evaluation of fragrant Vandaceous orchids for ornamental traits. M.Sc. thesis, submitted to Kerala Agricultural University, Thrissur, 98p

De LC, Rajeevan PK, Rao AN, Srivastava M & Chhetri G. 2015. Morphological characterization in Vanda species. International Journal of Scientific Research 4(1): 2277-8179.

Rajkumar K and Sharma G. 2010. Morphological and molecular characterization of intergeneric hybrids between the orchid genera Renanthera and Vanda. Acta Horticulturae 855. 169-176.

Lee YH. 1994. Genomic and meiotic analysis of Mokara orchids. Journal of Heredity, 85(1): 39-43.

Tan K. 1976 Taxonomy of Arachnis, Armodorum, Esmeralda, and Dimorphorchis (Orchidaceae) Part II. Selbyana 1(4): 365-373.

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Published

2024-11-26

How to Cite

Shamrao , K. R. ., & A, S. . (2024). Relationship analysis among intergeneric hybrids of Ascocentrum based on floral characters. CURRENT HORTICULTURE, 12(3), 71–77. Retrieved from https://currenthorticulture.com/index.php/CURHOR/article/view/209

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Vol. 12 No. 3 (2024): September–December 2024

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