The Effect of Yellow Rust and its Control on the Yield of Joss Cambier Winter Wheat

Mundy, E. J.

doi:10.1111/j.1365-3059.1973.tb01801.x

Cited by 17 publications

(3 citation statements)

References 4 publications

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“…Linear relationships between stripe rust at early milk (GS73) and yield loss were adequate within each year of our study. Such critical point models are consistent with other work (Doling & Doodson, 1968;Mundy, 1973;King, 1976;Brown, 1988;Park et at., 1988;Eskdale, 1991). Our overall regression coefficient was 0 67% yield loss for each 1 % increase in leaf area affected with stripe rust, based on two sites and three years.…”

Section: Discussionsupporting

confidence: 93%

“…However, critical point models for stripe rust seem to be location dependent. For example, in England, losses of 0-27, 0 44 and 0 39% for each 1% increase in stripe rust at similar stages of crop development were reported by Doling & Doodson (1968), Mundy (1973), and King (1976), respectively. In Australia, Brown (1988) reported 0-48% yield loss per 1% increase in disease in Victoria, Eskdale (1991) reported 0 52",, in northern NSW, andPark et al (1988) reported 0 83% in Queensland.…”

Section: Introductionmentioning

confidence: 91%

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The relationship between wheat yield and stripe rust as affected by length of epidemic and temperature at the grain development stage of crop growth

Murray

Ellison²,

Watson³

et al. 1994

Plant Pathology

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Stripe (yellow) rust, caused by Puccinia striiformis f.sp. tritici. was associated with mean losses of up to 84% in the yield of wheat in southern New South Wales, Australia, between 1984 and 1987. Yield loss became smaller in cultivars with increasing levels of resistance in adult plant reaction and did not appear in cultivars with seedling susceptibility and moderate or better adult plant reaction levels in the 3 years when epidemics began after emergence of the flag leaf. However, in 1984 the stripe rust epidemic began during stem elongation, and yield losses of up to 21% occurred in cultivars with seedling susceptibility and a moderate or better aduh plant reaction.Yield was significantly negatively correlated with the proportion of leaf area affected by stripe rust at stages of crop development from the end of heading to late milk. The correlation was greatest at the early milk stage of growth where the relationship was logarithmic. Two factors significantly influenced this relationship. Yield loss increased as the length of the epidemic increased, and decreased as temperature increased during grain development. The relationship that was developed for predicting yield loss accounted for 80-5% of the variance across all experiments, and was:.1= 100(1 _e-IO •'WM*-I65Z.-1417-1) where>• = yield loss (%); X= stripe rust (leaf area affected, range 0-99%) at early milk; Z. = time from 1 % disease to early milk (range 0-70 days); and T= mean daily maximum temperature from 7 days before to 14 days after early milk (range 19 8-27 5 C).

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Section: Discussionsupporting

confidence: 93%

Section: Introductionmentioning

confidence: 91%

The relationship between wheat yield and stripe rust as affected by length of epidemic and temperature at the grain development stage of crop growth

Murray

Ellison²,

Watson³

et al. 1994

Plant Pathology

View full text Add to dashboard Cite

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“…Percentage losses caused by yellow rust are estimated as being equal to approximately 0-4 times the percentage infection of the flag leaf. This formula is derived from data collected in a single field trial (Mundy, 1973) and in observations made on large numbers of differentially diseased tillers in a commercial crop in 1975 (King, 1976).…”

Section: Estimated Losses In Grain Yield Caused By Diseasesmentioning

confidence: 99%

Surveys of Diseases of Winter Wheat in England and Wales, 1970–75

King¹

1977

Plant Pathology

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SUMMARY Samples from 265–333 randomly selected crops of winter wheat in England and Wales were taken annually from 1970 to 1975 after heading, the main sample being at the milky‐ripe growth stage. The percentage of the area of the top two leaves affected by diseases was recorded and, in the last five years, samples were tested for infection by barley yellow dwarf virus: in 1975 stem base diseases were recorded. Scptoria was the most common and severe disease in four of the six years. In. 1970 mildew was most severe and, in 1975, brown rust. The severity of infection by Septoria tended to be greater in southern and western areas in wetter summers and in crops following a previous cereal. Yellow rust was most severe in 1972, when it was very prevalent on cv. Joss Cambier. In 1973 the disease was less severe, but in 1974 and 1975 the severities of both yellow and brown rusts increased in association with the popularity of susceptible cultivars. There was a tendency for yellow rust to be more severe on early‐sown crops. In 1975, eyespot was recorded on 11·8 per cent of the stems. 1·8 per cent of the symptoms being severe. Fungicidal sprays were associated with a slightly smaller incidence of stem base diseases. Estimates of percentage loss in yield due to particular diseases vary from almost zero caused by yellow rust in 1970 to 7·4 per cent loss caused by Septoria in 1972.

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