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- Author or Editor: David F. Ritchie x
- HortScience x
Abstract
‘Carolina Red’ is a medium-sized, firm-fleshed, early season nectarine [Prunus persica (L.) Batsch] exhibiting commercial resistance to bacterial spot, (Xanthomonas campestris pv. pruni).
Abstract
‘Carolina Belle’ peach is being released to fill the need for a firm, white-fleshed peach intended for local markets, and is proposed as an alternative to ‘Raritan Rose’.
Abstract
During the 1984 growing season, 156 peach and 40 nectarine cultivars, 49 plant introductions, and 33 Prunus species or species hybrids were evaluated for susceptibility to bacterial spot [Xanthomonas campestris pv. pruni (Smith 1903) Dye 1978] in North Carolina and South Carolina. Fruit and leaf infection and percentage of defoliation were evaluated in North Carolina, while only leaf infection data were evaluated in South Carolina. No cultivar was immune, but susceptibility varied greatly. Based on leaf infection in the 2 locations, it was concluded that disease pressure was greater in North Carolina. Correlation of fruit infection severity with leaf infection severity and percentage of defoliation in North Carolina was r = 0.30 (P = 0.01) and r = 0.54 (P < 0.01), respectively. Correlation between leaf infection severity and percent defoliation was r = 0.51 (P < 0.01) and r = 0.00 (NS) in North and South Carolina, respectively.