Evaluation of Seed Production and Quality Performance of Onion (Allium Cepa L.) Varieties at Kulumsa in Arsi Zone South East Ethiopia

Field experiment involving five improved onion (Allium cepa L.) varieties and carried out at Kulumsa Agricultural Research Center during the 2018 to 2019 cropping seasons under irrigated condition identify best performing variety for seed production target areas of Arsi Zone. The included in field were (Nafis, Robaf, Nasic Red, Bombe Adama Red). experimental design was a randomized complete block (RCBD) with three replications. Phenological growth parameters, yield, yield components studied. result showed that Variety had significant effect on most phonological attributes as well attributes. number days flowering vigorously significantly affected by variety; while plant height, boolting branch not influenced variety. Flower stalks height diameter, umbel per plant, diameter also Seed mean hectare significance difference among varieties. highest (1415.89 kg/ha) recorded from Red followed Nafis variety, whereas rerd, red Robaf show no each other, Therefore, it can be concluded use such is advisable could appropriate test area even though further testing required put recommendation strong basis.