Vol. 18 No. 2
Evaluation of tuberose (Polianthes tuberosa L.) diversity using multivariate analysis
Author(s): M. KAUR, B. S. BENIWAL, ANTIM AND A. VERMA
Abstract:
Eighteen treatment combinations were evaluated at CCS Haryana Agricultural University, Hisar during 2019 and 2020 cropping seasons to study the diversity in tuberose traits by multivariate analysis. Significant differences had been observed by analysis of variance for all the traits during both years. Plant height varied from 40.2 to 82.2 cm, while number of leaves ranged 21.2 to 52.4. Spike length expressed deviation of 33 to 80.2 cm and rachis length showed 15.6 to 42.2 cm. Bulbs yield per clump ranged 154 to 860g with Acid (17.5 to 20.5) and Ester values from 220.3 to 236.7 for the first year. Second year of study observed plant height varied from 45.3 to 85.2 cm and number of leaves expressed from 38.2 to 78.4 while spike length showed variation from 38.3 to 81.1cm. The rachis length showed 18.3 to 41.3 cm along with variation of 34.6 to 67.4g for spike weight. Bulbs yield per clump showed variation from 191.9 to 1044.4g and Acid (17.7 to 20.6) along with Ester values expressed variation 220.3 to 236.7. Biplot analysis showed first two principal components accounted for 91.6% and 89.1% of the total variation for years. Four clusters of traits were evident in respective analysis as two clusters in first quadrant and remaining two clusters in second quadrant. Two dimensional clustering under hierarchical multivariate showed plant height associated with spike length, rachis length grouped and maintained distance from group of Ester value, pH of oil, number of leaves. Highly significant direct correlation had been maintained by physical and chemical traits for considered treatment combinations as chemical traits would be enhanced with additional positive augmentation of physical traits.
Download Full Article: Click Here