Varieties of Triticum Vulgare Practically Immune in All Stages of Growth to Stem Rust

Peterson, R. F.; Johnson, T.; Newton, Margaret

doi:10.1126/science.91.2361.313

Science

1940

DOI: 10.1126/science.91.2361.313

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Varieties of Triticum Vulgare Practically Immune in All Stages of Growth to Stem Rust

R. F. Peterson

T. Johnson

Margaret Newton

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1943

1960

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A review of wheat breeding in Kenya

Dixon¹

1960

Euphytica

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The origin of Kenya wheats is traced mainly from the introduction of Australian varieties at the beginning of the century. Continuity was lost at the time of the first World War and modern wheats derive from a number of parents of uncertain origin in which Egyptian, Italian and Canadian wheats also played a part. Breeding from 1930 to 1950 was largely based on crossings within this body of material, with relatively few additions from abroad, and led to a range of wheats which are now known internationally for their stem rust resistance.Changes of rust race in Kenya since then have found these wheats lacking in sufficient breadth of resistance and few survive in commerce at the present time except as minor varieties. In the meantime wide use is being made of varieties from abroad, whilst considerable expansion of breeding is being undertaken.The International and F.A.O. Nurseries particularly have yielded much new material for direct multiplication and for breeding purposes, both for stem rust and yellow rust resistance. At the same time special attention is being given to wheats with an inter-specific or inter-generic derivation. Reviews of results with Kenya wheats in other countries provide confirmatory evidence of the extent of their resistance, viewed internationally, and indicate the value of continuing the breeding on a genetically additive basis.A discussion on longer-term questions covers such subjects as the role of out-ofseason crops, the concept of composite varieties with inherent diversity of rust resistance and, finally, the need for maximum genetic breadth throughout all breeding for rust resistance. The hope for higher levels of rust resistance remains the long-term aim.

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A review of wheat breeding in Kenya

Dixon¹

1960

Euphytica

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Breeding for disease resistance in wheat, oats, barley and flax

Ausemus¹

1943

Bot. Rev

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A Third Factor for Resistance to Puccinia graminis Tritici

Watson

Waterhouse

1945

Nature

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Varieties of Triticum Vulgare Practically Immune in All Stages of Growth to Stem Rust

Cited by 3 publications

References 1 publication

A review of wheat breeding in Kenya

A review of wheat breeding in Kenya

Breeding for disease resistance in wheat, oats, barley and flax

A Third Factor for Resistance to Puccinia graminis Tritici

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