Studies into slow rusting resistance among selected wheat lines
Abstract
158 words
Wheat is an important staple crop in East Africa whose
consumption outweighs its production partly due to the
emergence of a virulent strain of Puccinia graminis fsp tritici,
strain ug99 that cause stem rust disease. A study was carried
out at Kenya Agricultural Research Institute, Njoro to identify
sources of resistance to stem rust. Significant differences were
noted for the final disease severity scores and their area under
disease progress curve (AUPDC) values. The following lines
exhibited trace response and least AUPDC values; 1168.6,
SERI.1B*2/3/KAUZ*2/BOW//KAUZ/4/PBW343*2/
TUKURU/5/C80.1/3*BATAVIA//2*WBLL1, SUNCO//
TNMU/TUI and R07 F4-21258 which are entries 1, 7, 19 and
21, respectively. Lines which showed slow rusting
characteristics with least disease and low AUDPC values
included; CWANA 1st SR RESIS. ON - ETH - OS71, MON’S’/
ALD’S’//TOWPE’S’, 87 and WHEAR/VIVITSI//WHEAR (2,
3, 4 and 14, respectively). These elite lines could form the basis
for breeding for durable resistance in wheat. Identified
resistance could also be introgressed into high yielding
backgrounds.
Subjects
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