Vol. 12, Issue 3 (2023)

Author(s):
Anil Kumar Singh, Roshni Agnihotri, Rajeev Ranjan and Arun Kumar

Abstract:
The performance of varieties of any crop differs from one region to another region. Hence, selection of genotype is an important criterion for successful cultivation of any crop, Traditionally in double tuberose very few traditional verities are present thus the new genotype when compared with older checks paves way for adoption of better performing genotype in a certain area. Different growth parameters of three new tuberose genotypes were compared with two traditional genotypes for use as cut flower purpose under north Bihar agro-climatic conditions at the Research farm of Dr Rajendra Prasad central Agricultural University, Bihar, Pusa, Samastipur from 2020-22. The double genotype, ‘Bidhan Rajani H-24’ was found to be the most suitable genotype for the region when compared with all others under study. This genotype was found significantly superior than all the other genotypes with respect to days to opening of first florets, flowering duration, spike length, rachis length, number of spikes per clump, and cost benefit ratio. The double variety ‘Phule Rajat’ was found to be at par with double genotype ‘Bidhan Rajani H-24’ for traits like, days to spike emergence, number of floret per spike, length of florets, loose flower yield, number of bulb per clump and lowest reaction to rot knot nematode. The check double variety ‘Subhashini’ only showed superiority in highest weight of 100 florets.