Yield variability of breadwheat under wheat stem rust pressure at bore field condition of Southern Oromia

Tolessa Taye, Chemada Fininsa and Getaneah Woldeab

 

Research Paper I Published April,2015

Journal of Agricultural Science and Food Technology  Vol. 1 (2), pp.11-15

ABSTRACT

Eleven bread wheat cultivars were evaluated along with one susceptible local cultivar as control for field variation under wheat stem rust pressure during the main cropping season of 2011/12 at Bore Agricultural Research Station. The maximum wheat stem rust severity was recorded from the local cultivar (93.6%). Disease severity ranged from 0% for highly resistant cultivar (ETBW 5496) to 93.6% for susceptible cultivar. Cultivar with high disease severity and area under disease progress curve gave the lowest grain yield. Cultivars with low disease severity gave higher yield compared to the susceptible cultivars. Digalu gave higher mean grain yield (7.3 t ha–1) followed by Danda`a (6.26 t ha–1) with disease severity values of 56% and 48% respectively. Galema had higher disease pressure of 79% with lower mean grain yield of (1.15 t ha–1). Shorima, Kakaba, ETBW13A2, and ETBW5496 had better yield and lower stem rust severity and were recommended for cultivation under moderate stem rust infestation.

Key words: wheat Stem Rust, yield variability, bore.

View Full Text-PDF