Wyniki wyszukiwania

1

Optimal control of Septoria nodorum under decreasing returns for wheat

100%

Obst A.

Hodowla Roślin, Aklimatyzacja i Nasiennictwo

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1994

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tom 38

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nr 3-4

2

Measuring and modeling crop loss of wheat caused by Septoria leaf blotch in seven cultivars and lines in Iran

84%

Mojerlou S., Safaie N., Alizadeh A., Khelghatibana F.

Journal of Plant Protection Research

|

2009

|

tom 49

|

nr 3

257-262

Septoria leaf blotch caused by Septoria tritici, is one of the most important diseases of wheat worldwide including Iran. To determine yield reduction caused by this disease in Golestan province, field experiments were carried out in randomized complete block design with four replications and five wheat cvs. Tajan, Zagros, Shiroodi, Koohdasht, Shanghai and two lines N-80-6 and N-80-19 at Gorgan Research Station. Artificial inoculation was performed using spore suspension at three growth stages (Zadoks scale) including tillering (GS 37), stem elongation (GS 45) and flag leaf opening (GS 53). Control plots were sprayed with water. In this study, the 1 000 kernel weight (TKW), grain yield and area under disease progress curve (AUDPC) during growth season were measured. Statistical analysis showed that the levels of yield reduction was different in various studied wheat cultivars and lines and was reduced by 30 to 50%. The highest losses were observed for cvs. Zagros and Tajan with 48.86% and 47.41% of grain yield reduction, respectively. There was a positive correlation between grain yield reduction and AUDPC. The results of crop loss modelling using integral and multiple point regression models showed that the integral model (L = 1230.91+1.37AUDPC) in which AUDPC and crop loss percentages were independent and dependent variables, respectively, could explain more than 95% of AUDPC variations in relation to crop loss in all cultivars in two years. In the study of integral model for each cultivar, cv. Shiroodi showed the highest fitness. In multiple point models, disease severity at various dates was considered as independent variables and crop loss percentage as dependent variable. This model with the highest coefficient of determination had the best fitness for crop loss estimation. Besides, the results showed that the disease severity at GS37, GS53 and GS91 stages (Zadok's scale) was more important for crop loss prediction than that in other phenological stages.

3

Incidence and effects of control of septoria glume and leaf blotch in South-Eastern Poland

84%

Lisowicz F.

Hodowla Roślin, Aklimatyzacja i Nasiennictwo

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1994

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tom 38

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nr 3-4

4

Effect of Leptosphaeria nodorum - induced seed shrivelling on subsequent emergence and plant growth of wheat

84%

Gilbert J., Tekauz A.

Hodowla Roślin, Aklimatyzacja i Nasiennictwo

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1994

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tom 38

|

nr 3-4

5

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

Mycoses in rye [Secale cereale L.] - occurrence and threat three-year study in the region of Southern Poland

84%

Glazek M., Krzyzinska B., Maczynska A.

Journal of Plant Protection Research

|

2000

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tom 40

|

nr 3-4

In the years 1997-1999 the occurrence of rye diseases in the region of south-western Poland was investigated on rye varieties Warko, Dańkowskie Złote and hybrid rye Marder. Eyespot (Pseudocercosporella herpotrichoides var. acuformis) and brown rust (Puccinia recondita) occurcd most frequently in the experimental period. Fusarium stem base rot and Ieaf blight (Fusarium spp.) and leaf scald (Rhynchosporium secalis) were occasionally of considerable importance, but their occurrence was usually less frequent. Variety Marder showed high susceptibility to stem base and leaf diseases, especially to brown rust. When one treatment with fungicides was applied, grain yield increase of cv Marder reached the value of 20,03% in conditions of high infection by pathogens. lt was concluded that in the years favourable for the development of diseases on rye, chemical control with broad-spectrum fungicides might be advisable, especially for protecting susceptible varieties.

6

Marker-assisted selection for scald (Rhynchosporium commune L.) resistance gene(s) in barley breeding for dry areas

67%

Sayed H., Baum M.

Journal of Plant Protection Research

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2018

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tom 58

|

nr 4

Barley scald, caused by Rhynchosporium commune is one of the most prevalent diseases in barley (Hordeum vulgare L.) worldwide. The primary loss from scald is reduced yield, which can exceed 25% in dry areas. In our earlier studies, we developed a low-resolution linkage map for recombinant inbred lines of the cross Tadmor/WI2291. Quantitative trait loci (QTLs) for scald were localized on chromosomes 2H and 3H flanked by Simple Sequence Repeat (SSR) markers HVM54 and Bmac0093b on 2H and HVLTPP8, HVM62 and Bmag0006 on 3H. These chromosome 3H markers were found to be located close to the Rrs1 − R. commune resistance gene(s) on chromosome 3H. In this study, 10 homozygous resistant and 10 homozygous susceptible plants each from the F7 population of Tadmor/ Sel160, a panel of 23 barley varieties used routinely in the International Centre for Agricultural Research in the Dry Areas (ICARDA) breeding program and three populations were used for scald resistance screening using 25 DNA markers that are located very close to scald resistance gene(s) on barley chromosomes. Only five of those markers clearly discriminated co-dominantly between resistant and susceptible plants. These markers, Ebmac0871- SSR, HVS3-SCAR, Bmag0006-SSR, reside on different arms of barley chromosome 3H. Ebmac871 is localized on the short arm of 3H and HVS3 and Bmag0006 are localized on the long arm of 3H. This result indicates that the scald resistance genes which they tag are probably close to the centromeric region of this chromosome. Scald resistance from several sources map to the proximal region of the long arm of chromosome 3H, forming the complex Rrs1 locus. The availability of highly polymorphic markers for the discrimination of breeding material would be extremely useful for barley breeders to select for the trait at the DNA level rather than relying on phenotypic expression and infection reaction.

7

Influence of leaf diseases on grain yield and yield components in winter wheat

67%

Ronis A., Semaskiene R., Dabkevicius Z., Liatukas Z.

Journal of Plant Protection Research

|

2009

|

tom 49

|

nr 2

151-157

Leaf diseases' influence the relationship between the yield and yield components of winter wheat (Triticum aestivum L.). Field experiments were conducted during 2003-2006 on a light loamy gleyic cambisoil in the central part of Lithuania to determine how leaf disease severity level affects grain yield and yield components. The area under disease progress curves (AUDPC), grain yield and yield components were analysed using the analysis of variance and correlations. Infected wheat straw was applied to initiate epidemics in all treatments. Three winter wheat cultivars: Hereward, Aron and Tauras differing in the level of resistance to leaf diseases were used in the experiments. In total, six treatments were established: (i) untreated control, (ii) powdery mildew control (pmc) + leaf diseases severity level 0%, (iii) pmc + leaf diseases severity level 1.0-5.0%, (iv) pmc + leaf diseases severity level 5.1-10.0%, (v) pmc + leaf diseases severity level 10.1-25.0%, (vi) pmc + leaf diseases severity level > 25.1%. Wheat in all treatments, except for the untreated control, was protected by morpholine and triazole fungicides. Yield and yield components were affected by leaf diseases in all the treated cultivars during all experimental years. Significant (p ≶ 0.01) medium and strong correlation coefficients were found between AUDPC and yield in all the treated cultivars under high pressure of leaf diseases in 2004.

8

Pathogenic variability of Septoria tritici in isolates from South America

67%

Ackermann M. D., Stewart S., Ibanez W., Capdeville F., Stoll M.

Hodowla Roślin, Aklimatyzacja i Nasiennictwo

|

1994

|

tom 38

|

nr 3-4

9

Spore dispersal studies of Phaeosphaeria nodorum

67%

Goral T., Arseniuk E., Scharen A. L.

Hodowla Roślin, Aklimatyzacja i Nasiennictwo

|

1994

|

tom 38

|

nr 3-4

10

Trichoderma harzianum and Gliocladium roseum: antagonistic agents introduced to wheat phylloplane for biological control of Mycosphaerella graminicola [anamorph Septoria tritici]

67%

Perello A., Cordo C., Monaco C.

Hodowla Roślin, Aklimatyzacja i Nasiennictwo

|

1994

|

tom 38

|

nr 3-4

11

Differences in virulence of German Septoria tritici isolates and resistance testing of wheat genotypes

67%

Meien-Vogeler F., Bartels G., Fehrmann H.

Hodowla Roślin, Aklimatyzacja i Nasiennictwo

|

1994

|

tom 38

|

nr 3-4

12

Przeglad chorob owsa

59%

Mazaraki M.

Żywność Nauka Technologia Jakość. Suplement

|

1999

|

tom 06

|

nr 1

181-185

W opracowaniu omówiono pięć ważniejszych chorób owsa: rdzę koronową, rdzę źdźbłową, mączniak, plamistość, wirozę w oparciu o badania własne, obserwacje i literaturę. Zamieszczono informację o możliwości międzynarodowej współpracy służącej zwalczaniu chorób owsa w ramach EODN.

13

Effect of seedborne inoculum on septoria [stagonospora] nodorum blotch incidence in triticale and wheat under field conditions

59%

Goral T., Arseniuk E., Sowa W., Czembor H. J., Krysiak H.

Hodowla Roślin, Aklimatyzacja i Nasiennictwo

|

1994

|

tom 38

|

nr 3-4

14

Evaluation of susceptibility of some varieties of spring barley to Rhynchosporium secalis (Oud.) J. J. Davis

51%

Blonska-Pawlak A., Kwiatkowski A.

Prace Naukowe Instytutu Ochrony Roślin

|

1980

|

tom 22

|

nr 2

15

Progi szkodliwosci ulatwia decyzje

43%

Janczak C., Pawlak A.

Agrochemia

|

1996

|

nr 05

3-5

16

W polu i na plantacji

34%

Widerski K., Mrowczynski M., Kubiak K., Lawecki T.

Agrochemia

|

1995

|

nr 06

17

W polu i na plantacji

34%

Lawecki T., Kubiak K., Widerski K., Mrowczynski M.

Agrochemia

|

1995

|

nr 05

18

W polu i na plantacji

34%

Widerski K., Mrowczynski M., Lawecki T., Kubiak K.

Agrochemia

|

1996

|

nr 05

19

W polu i na plantacji

34%

Widerski K., Mrowczynski M., Lawecki T., Kubiak K.

Agrochemia

|

1996

|

nr 06

Ograniczanie wyników

Optimal control of Septoria nodorum under decreasing returns for wheat

Measuring and modeling crop loss of wheat caused by Septoria leaf blotch in seven cultivars and lines in Iran

Incidence and effects of control of septoria glume and leaf blotch in South-Eastern Poland

Effect of Leptosphaeria nodorum - induced seed shrivelling on subsequent emergence and plant growth of wheat

Mycoses in rye [Secale cereale L.] - occurrence and threat three-year study in the region of Southern Poland

Marker-assisted selection for scald (Rhynchosporium commune L.) resistance gene(s) in barley breeding for dry areas

Influence of leaf diseases on grain yield and yield components in winter wheat

Pathogenic variability of Septoria tritici in isolates from South America

Spore dispersal studies of Phaeosphaeria nodorum

Trichoderma harzianum and Gliocladium roseum: antagonistic agents introduced to wheat phylloplane for biological control of Mycosphaerella graminicola [anamorph Septoria tritici]

Differences in virulence of German Septoria tritici isolates and resistance testing of wheat genotypes

Przeglad chorob owsa

Effect of seedborne inoculum on septoria [stagonospora] nodorum blotch incidence in triticale and wheat under field conditions

Evaluation of susceptibility of some varieties of spring barley to Rhynchosporium secalis (Oud.) J. J. Davis

Progi szkodliwosci ulatwia decyzje

W polu i na plantacji

W polu i na plantacji

W polu i na plantacji

W polu i na plantacji