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Environmental stability of partial resistance in spring wheat to wheat leaf rust

โœ Scribed by L. H. M. Broers; J. E. Parlevliet

Publisher
Springer
Year
1989
Tongue
English
Weight
297 KB
Volume
44
Category
Article
ISSN
0014-2336

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โœฆ Synopsis

Five spring wheat cultivars differing in partial resistance (PR) to wheat leaf rust were tested at Wageningen (the Netherlands) on a sandy and a clay site, El Batan (CIMMYT, Mexico) and Ponta Grossa (Brazil) over two years . The cultivars were Skalavatis 56, Little Club (both very susceptible), Westphal 12A, Akabozu and BH 1146 (all three with high levels of PR) . The results showed that PR was expressed at all four locations in both years . The level of expression was influenced by the environment but the cultivar ranking was hardly affected . Selection for PR in the field can therefore be carried out over a wide range of environments .

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Influence of post-infection temperature
Influence of post-infection temperature on three components of partial resistance in wheat to wheat leaf rust
โœ L. H. M. Broers; S. C. Wallenburg ๐Ÿ“‚ Article ๐Ÿ“… 1989 ๐Ÿ› Springer ๐ŸŒ English โš– 587 KB

Three components of partial resistance (PR) were studied at three post-infection temperatures using seven spring wheat genotypes differing in level of PR and two different wheat leaf rust races . The components were latency period (LP), infection frequency (IF) and urediosorus size (US) . The expres

Influence of development stage and host
Influence of development stage and host genotype on three components of partial resistance to leaf rust in spring wheat
โœ L. H. M. Broers ๐Ÿ“‚ Article ๐Ÿ“… 1989 ๐Ÿ› Springer ๐ŸŒ English โš– 599 KB

Latency period (LP), infection frequency (IF) and urediosorus size (US) of leaf rust were determined on primary leaves and young flag leaves of 18 spring wheat cultivars . A large growth stage effect and a large cultivar effect on all three components were observed . Partial resistance as measured b