The Effect of Fungicides on Leaf Diseases and on Yield in Spring Barley in South‐west England

Jenkins, J. E. E.; Melville, S. C.; Jemmett, J. L.

doi:10.1111/j.1365-3059.1972.tb01723.x

Cited by 33 publications

(10 citation statements)

References 7 publications

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“…Although this effect was attributed to fungicide treatment, the yield increase by the Folicur application was unlikely due to the control of leaf diseases, since the severity of leaf spotting diseases was very low. Similarly, Dickinson and Wallace (1976) and Jenkins et al (1972) reported that yield increases using zineb (a contact fungicide) were partly due to factors other than direct effects on the leaf pathogens, in wheat and barley (Hordeum vulgare L.), respectively. Kettlewell and Davies (1982) found that yield increase of wheat following application of Tilt (propiconazole, a systemic fungicide) was not directly related to disease control, but was associated with a higher photosynthetic rate.…”

Section: Resultsmentioning

confidence: 99%

Effect of leaf spotting diseases on grain yield and seed traits of wheat in southern Saskatchewan

Wang

Fernandez²,

Clarke³

et al. 2002

Can. J. Plant Sci.

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. 2002. Effect of leaf spotting diseases on grain yield and seed traits of wheat in southern Saskatchewan. Can. J. Plant Sci. 82: 507-512. Although leaf spotting diseases have been reported to have a negative effect on grain yield and seed characteristics of wheat (Triticum spp.), the magnitude of such effects on wheat grown on dryland in southern Saskatchewan is not known. A fungicide experiment was conducted at Swift Current (Brown soil) and Indian Head (Black soil) from 1997 to 1999 to determine the effect of leaf spotting diseases on yield and seed traits of wheat. Two fungicides, Folicur 3.6F and Bravo 500, were applied at different growth stages on three common wheat (Triticum aestivum L.) and three durum wheat (T. turgidum L. var durum) genotypes. Fungicide treatments generally did not affect yield, kernel weight, test weight or grain protein concentration, and these effects were relatively consistent among genotypes. Folicur applied at head emergence in 1997 and at flag leaf emergence and/or head emergence in 1998 increased yield at Indian Head (P < 0.05). Fungicides applied at and before flag leaf emergence tended to increase kernel weight. Grain protein concentration increased only in treatments of Bravo applications at Indian Head in 1998. These results suggested that under the dryland environment and management in southern Saskatchewan leaf spotting diseases generally have a small effect on yield, kernel weight, test weight and protein concentration.

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Section: Resultsmentioning

confidence: 99%

Effect of leaf spotting diseases on grain yield and seed traits of wheat in southern Saskatchewan

Wang

Fernandez²,

Clarke³

et al. 2002

Can. J. Plant Sci.

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“…(11,13,15,92,101,119,149,151). Significant yield losses have been reported from New Zealand (5), Australia (20), North America (46,81), the Czech Republic (29), the United Kingdom (56,83), Ethiopia (118), and South Africa (135). Murray & Brennan (86) estimated that in Australia the disease causes economic losses of AUD$9 million per year.…”

Section: Economic Importancementioning

confidence: 99%

Leaf Rust of Cultivated Barley: Pathology and Control

Park

Golegaonkar²,

Derevnina³

et al. 2015

Annu. Rev. Phytopathol.

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Leaf rust of barley is caused by the macrocyclic, heteroecious rust pathogen Puccinia hordei, with aecia reported from selected species of the genera Ornithogalum, Leopoldia, and Dipcadi, and uredinia and telia occurring on Hordeum vulgare, H. vulgare ssp. spontaneum, Hordeum bulbosum, and Hordeum murinum, on which distinct parasitic specialization occurs. Although Puccinia hordei is sporadic in its occurrence, it is probably the most common and widely distributed rust disease of barley. Leaf rust has increased in importance in recent decades in temperate barley-growing regions, presumably because of more intensive agricultural practices. Although total crop loss does not occur, under epidemic conditions yield reductions of up to 62% have been reported in susceptible varieties. Leaf rust is primarily controlled by the use of resistant cultivars, and, to date, 21 seedling resistance genes and two adult plant resistance (APR) genes have been identified. Virulence has been detected for most seedling resistance genes but is unknown for the APR genes Rph20 and Rph23. Other potentially new sources of APR have been reported, and additivity has been described for some of these resistances. Approaches to achieving durable resistance to leaf rust in barley are discussed.

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“…National surveys, first of spring barley and then of winter wheat, were established to identify the major diseases (King, 1972;. Large & Doling (1962) measured the effects of cereal mildew (Erysiphe graminis) on yield, and Jenkins et al (1972) examined the use of fungicides for the control of diseases of spring barley in south-west England. Intermittent surveys of diseases in horticultural crops were also undertaken (Fletcher & Harris, 1979).…”

Section: ±81mentioning

confidence: 99%

Fifty years of Plant Pathology

Hardwick¹

2001

Plant Pathology

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The Effect of Fungicides on Leaf Diseases and on Yield in Spring Barley in South‐west England

Cited by 33 publications

References 7 publications

Effect of leaf spotting diseases on grain yield and seed traits of wheat in southern Saskatchewan

Effect of leaf spotting diseases on grain yield and seed traits of wheat in southern Saskatchewan

Leaf Rust of Cultivated Barley: Pathology and Control

Fifty years of Plant Pathology

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