Effect of Soil Fertility on the Physiology of Corn Plants in Relation to Helminthosporiose Disease Incidence

Vidhyasekaran, P.; Kandasamy, D

doi:10.1111/j.1439-0434.1971.tb03175.x

Cited by 6 publications

(1 citation statement)

References 8 publications

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“…Cultivars and lines of H tuberosus were also screened for their ability to grow on calciumfree plant tissue culture medium, in order to evaluate the possibility of screening for pathogen resistance (Punja & Jenkins, 1984;Yang et al, 1993). For a review of the role of calcium in disease resistance, see Vidhyasekaran (1988). In order to validate the in-vitro screening strategy, H. tuberostts cultivars and lines were (a) grown in the field in soil heavily contaminated with Scterotinia, and (b) inoculated with sclerotia and their responses compared.…”

Section: Introductionmentioning

confidence: 99%

Screening for Sclerotinia resistance in Helianthus tuberosus L. (Jerusalem artichoke) varieties, lines and somaclones, in the field and in vitro

Cassells

Walsh

1995

Plant Pathology

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Yields in large‐scale ‘continuous’ cultivation of H. tuberosus (Jerusalem artichoke) can be greatly reduced by Sclerotinia sclerotiorum, which causes a basal stem and tuber rot. In 34 varieties/lines of H. tuberosus from European, Russian and Canadian breeding programmes, responses to the pathogen varied from field resistance to 34% stem rot, cultivars Nahodka and Columbia showing c. 25% stem rot after three seasons of cultivation on the same site. Attempts to develop an in‐vitro selection for S. sclerotiorum resistance based on culture of H. tuberosus nodes on media precolonized with Sclerotina were unsuccessful. There was a strong positive correlation between capacity of nodes to grow in vitro on calcium‐free medium and field resistance. Somaclones of'Nahodka’ selected on the latter basis showed no field infection when grown on land that was heavily contaminated with the pathogen, and they were resistant to artificial inoculation with the pathogen.

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Section: Introductionmentioning

confidence: 99%

Screening for Sclerotinia resistance in Helianthus tuberosus L. (Jerusalem artichoke) varieties, lines and somaclones, in the field and in vitro

Cassells

Walsh

1995

Plant Pathology

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Effect of nitrogen on the incidence of Verticillium wilt disease of egg plant caused by Verticillium dahliae Kleb

Sivaprakasam

Rajagopalan

1974

Plant Soil

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An investigation on the effect of different levels of nitrogen on the incidence of Verticillium wilt disease of egg plant was carried out. Application of nitrogen to the host increases susceptibility to Verticillium wilt disease. The initial s y m p t o m s of disease appeared on the 6th day in plants fertilized with 200 kg and 400 kg N/ha following inoculation of plants with Verticillium dahliae, whereas the appearance of s y m p t o m s was delayed to a period of a further two days in the plants supplied with 100 kg N / h a and control plants which received no nitrogen. Besides the prolonged incubation period in symptom development due to low levels of nitrogen, the disease severity was also reduced with a reduction in application of nitrogen.

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Possible rôle of sugars in restriction of lesion development in finger millet leaves infected with Helminthosporium tetramera

Vidhyasekaran

1974

Physiological Plant Pathology

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Effect of Soil Fertility on the Physiology of Corn Plants in Relation to Helminthosporiose Disease Incidence

Cited by 6 publications

References 8 publications

Screening for Sclerotinia resistance in Helianthus tuberosus L. (Jerusalem artichoke) varieties, lines and somaclones, in the field and in vitro

Screening for Sclerotinia resistance in Helianthus tuberosus L. (Jerusalem artichoke) varieties, lines and somaclones, in the field and in vitro

Effect of nitrogen on the incidence of Verticillium wilt disease of egg plant caused by Verticillium dahliae Kleb

Possible rôle of sugars in restriction of lesion development in finger millet leaves infected with Helminthosporium tetramera

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