Susceptibility of four grapevine rootstocks to Cylindrocladiella parva

Autor:	Candice J. Barclay, Dalin S. Brown, E. Eirian Jones, Marlene V. Jaspers, Hayley J. Ridgway
Rok vydání:	2013
Předmět:	biology Cylindrocladiella parva Inoculation Horticulture biology.organism_classification Conidium Cutting Agronomy Dry weight Insect Science parasitic diseases Shoot Cultivar Rootstock Agronomy and Crop Science
Zdroj:	New Zealand Plant Protection. 66:249-253
ISSN:	1179-352X 1175-9003
DOI:	10.30843/nzpp.2013.66.5675
Popis:	The susceptibility of four common grapevine rootstocks (101-14, Schwarzmann, 5C and Riparia Gloire) to Cylindrocladiella parva (black foot disease) infection was assessed in a pot experiment. The roots of 4-month-old callused rooted cuttings were wounded in situ and inoculated with 50 ml C. parva conidial suspension (10/ml) or sterile water (controls). After 6 months of growth, shoot dry weight was signiicantly higher for control plants (24.2 g) than for those inoculated with C. parva (16.5 g), but did not differ between rootstock varieties. Root dry weight was not signiicantly affected by C. parva inoculation, but root dry weight of 101-14 was signiicantly higher than other rootstocks. Incidence and severity of trunk infection were signiicantly affected by rootstock variety, being lowest in rootstock 101-14 plants than other rootstocks. None of the rootstocks tested was resistant to this pathogen.
Databáze:	OpenAIRE
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