Open AccessDistribution of Botryosphaeria spp infection in different grapevine nursery materials in New Zealand
Author(s) -
R.G. Billones,
E. Eirian Jones,
Hayley J. Ridgway,
Marlene V. Jaspers
Publication year - 2009
Publication title -
proceedings of the new zealand weed and pest control conference/new zealand plant protection/proceedings of the ... national weeds conference/proceedings of the new zealand weed control conference/proceedings of the new zealand plant protection conference
Language(s) - English
Resource type - Journals
eISSN - 0370-2804
pISSN - 0370-0968
DOI - 10.30843/nzpp.2009.62.4853
Subject(s) - botryosphaeria , rootstock , cutting , biology , horticulture , botany
The aim of this research was to test different grapevine nursery plant materials from different nurseries around New Zealand for presence of Botryosphaeria species Tissue samples (05 cm) were cut from surfacesterilised grapevine stem samples apparently healthy grafted plants failed grafted plants (or Grade 2 plants) scion and rootstock cuttings of different varieties collected from nine grapevine nurseries around New Zealand for isolation onto potato dextrose agar plates The Botryosphaerialike isolates were identified by conidial characteristics and molecular methods Of the propagation materials and plants received 23 had Botryosphaeria infection The majority of Botryosphaeria spp (49) were isolated 1 cm above or below the graft unions of failed/ Grade 2 and Grade 1 plants but also in the scions (10) and the rootstocks (3) of the grafted plants The scion and rootstock cuttings collected from the mothervines had 17 and 21 of the Botryosphaeria infections respectively mostly from the middle and basal parts of the cuttings The distribution of Botryosphaeria spp on different parts of the plants was statistically significant using a Pearson Chisquare test (P