The Effect of Mildew and Scald Infection on Yield and Quality of Barley<sup>1</sup>

Schaller, C. W.

doi:10.2134/agronj1951.00021962004300040005x

Cited by 34 publications

(17 citation statements)

References 3 publications

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“…The maximum loss in urain yield obtained in this experiment \MIS .M)",,. I his is similar to the maximum losses mcasureit in most reported field experiments (Schaller, 1951;Ozoe, 1956;Skoropad, 1960;James et al, 1968;Khan & D'Antuono, 1985).…”

Section: Discussionsupporting

confidence: 85%

Effects of Rhynchosporium secalis at specific growth stages on barley grown in a controlled environment

Mayfield

Clare

1991

Plant Pathology

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Under controlled environmental conditions, inoculation of barley at five growth stages with Rhynchosporium secalis reduced grain yield by up to 30%. Greater yield losses resulted from inoculations carried out after tillering than from those during or before tillering. Most of the yield loss was due to a reduction in the number of heads per plant. The number of grains per head was reduced only when plants were inoculated at mid‐ or late‐tillering growth stages. The mean weight of individual grains was not reduced significantly by any treatment. Inoculation at stem elongation also resulted in less leaf area and water use, and delayed anthesis. Inoculation affected root dry weight more than shoot dry weight and all inoculations reduced root dry weight at the boot growth stage

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Section: Discussionsupporting

confidence: 85%

Effects of Rhynchosporium secalis at specific growth stages on barley grown in a controlled environment

Mayfield

Clare

1991

Plant Pathology

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“…In the case of Atlas 46, this suggestion is further substantiated by its ancestry; the resistance was derived from Turk through a back-crossing programme (Schaller, 1951). Dyck and Schaller (1961a) and Starling et al (1969) found two dominant genes in Atlas 46, only one of which was also found in Turk, the other being found in Atlas.…”

Section: Discussiorcmentioning

confidence: 94%

The inheritance of resistance to Rhynchosporium secalis in barley

Habgood

Hayes

1971

Heredity

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SEVERAL studies have been carried out, mainly in the U.S.A., on the inheritance of resistance to the leaf blotch (or scald) disease of barley, caused by Rhynchosporium secalis (Oudem.) J. J. Davies. Mackie (1929) found that resistance in an unspecified variety was controlled by a single recessive gene. Riddle and Briggs (1950) identified a single dominant gene conferring resistance in La Mesita, which was also present with a recessive gene in Trebi and Cal jfornia 1311 (= Modoc), and with one or more additional dominant genes in Turk. A designation for genes conferring resistance to R. secalis was first used by Bryner (1957), who allocated the symbol Rha and Turk), Rh4 (in La Mesita, Osiris and Trebi), Rh42 (an allele at the Rh4 locus, in Modoc) and Rh5 (in Turk). These genes were shown to be specific against certain races of the pathogen. The Rh3 and Rh4 loci were very closely linked on chromosome 3 (Dyck and Schaller, 1961a, b), and Rh3 was considered to be identical, allelic or closely linked to the Rh locus in Brier.

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“…The effects of this disease on yield had not been investigated in this country. Schaller (1963), in California, using lines isogenic except for reaction to leaf blotch showed that the disease could cause losses of up to 35 per cent. Work in Canada by Skoropad (1960) involving a combination of artificial inoculation and fungicide control indicated a yield loss of about 11 per cent.…”

Section: Introductionmentioning

confidence: 99%

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

Jenkins¹,

Melville

Jemmett

1972

Plant Pathology

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Summary In nine experiments in 1966–68, fungicides applied on 8–12 occasions to plots of barley resulted in mean grain yield increases of about 40 per cent. Zineb increased yields by an average of 50 per cent in nine experiments and lime sulphur by 19 per cent in six experiments. In single experiments dichlofluanid increased yields but oxycarboxin did not. In 1968, fungicides applied on only two occasions failed to control disease and to increase grain yield. Large yield increases were associated with a good control of leaf diseases including leaf blotch (Rhynchosporium secalis), halo spot (Selenophoma donacis) and brown rust (Puccinia hordei). Mildew (Erysiphe graminis) was excluded by using resistant cultivars. The diseases were severe late in the season, usually at or after ear emergence. Yield increases were wholly due to an increase in grain weight (1000‐grain weight).

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The Effect of Mildew and Scald Infection on Yield and Quality of Barley¹

Cited by 34 publications

References 3 publications

Effects of Rhynchosporium secalis at specific growth stages on barley grown in a controlled environment

Effects of Rhynchosporium secalis at specific growth stages on barley grown in a controlled environment

The inheritance of resistance to Rhynchosporium secalis in barley

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

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The Effect of Mildew and Scald Infection on Yield and Quality of Barley1

Cited by 34 publications

References 3 publications

Effects of Rhynchosporium secalis at specific growth stages on barley grown in a controlled environment

Effects of Rhynchosporium secalis at specific growth stages on barley grown in a controlled environment

The inheritance of resistance to Rhynchosporium secalis in barley

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

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The Effect of Mildew and Scald Infection on Yield and Quality of Barley¹