Evaluation of rabi onion (Allium cepa L.) genotypes for northern Karnataka

Abstract

The experiment was conducted at the Main Agricultural Research Station, UAS, Dharwad during rabi season of2021-22. For the study totally 37 genotypes were collected from different institutes viz., Directorate of Onion and GarlicResearch, Rajgurunagar, Indian Institute of Horticultural Research, Bangalore, National Horticultural Research andDevelopment Foundation, Nasik and some Local genotypes were collected from different districts of Karnataka and wereevaluated using randomized complete block design with three replications for growth and yield parameters. With regards togrowth parameters, maximum plant height (64.20 cm) was recorded in NHRDF-4 and minimum was in Rampur Local(55.90 cm), while RVC-21-40 exhibited maximum number of leaves per plant (12.29) and Bellary Local had minimum(10.41). The highest leaf length (62.18 cm) was accumulated in RVA-21-15 and lowest was in Rampur Local (53.96 cm).However, with respect to neck diameter, RVA-21- 01 registered maximum (1.78 cm) and minimum was in RVB-21-20 (1.19cm). With regards to yield parameters, RVA-21-09 documented maximum polar diameter (6.38 cm) however, lowest wasobserved in Arka Vishwas (4.22 cm). The genotype RVC-21-40 exhibited highest equatorial diameter (6.75 cm) of bulb, bulbweight (95.38 g), total yield (35.20 t/ha) and marketable yield (33.50 t/ha). With overall observations, RVC-21- 40,NHRDF-4 and RVA-21-09 genotypes found promising with respect togrowth and yield parameters. Hence, these genotypescan be utilized further for crop improvement programmes.