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Seed transmission of Didymella stem‐rot of tomatoes
Author(s) -
MAUDE R.B.
Publication year - 1962
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1962.tb05991.x
Subject(s) - biology , sowing , hypocotyl , agronomy , horticulture , crop
SUMMARY In studies on seed transmission of Didymella stem‐rot of tomatoes in the outdoor crop, heavily infected seed was sown in the glasshouse in January, March and April and the surviving plants were subsequently planted in the field. 50% of the plants grown from the January sowing became infected and a few of them first showed symptoms after planting in the field. On the other hand only 9 and 5%, respectively, of the plants from the other two sowings became infected, none of them after field planting. No infection occurred on plants raised in soil in which infected seeds had previously been sown. Lesions arising from seed‐borne infection occurred on the cotyledons or hypocotyl and could be distinguished by their position on the mature plant from those resulting from other sources.