ISHS Acta Horticulturae 315: Peach, XXIII IHC
ROOTSTOCK EFFECT ON SHORT-LIFE PERFORMANCE OF PEACH DURING 12 YEARS |
| Author: | Umedi L. Yadava |
| Abstract:
Eight peach [Prunus persica (L.) Batsch] seedling rootstocks in 16 combinations with two peach scions were evaluated for vegetative growth, fruit productivity, and peach tree short life (PTSL) related performance from 1976 to 1987. Rootstock significantly influenced tree survival, bacterial canker (Pseudomonas syringae van Hall) incidence, cold injury estimated by trunk cambial browning, suckering, blossoming, vegetative budbreak, and fruit yield. However, the influence of rootstock on flower bud density, fruit maturity, fruit size, and autumn defoliation was not significant. Annual rate of trunk growth and incidence of bark gummosis (Botrysphaeria dothidea) showed inconsistent effect of rootstock. Tree survival was negatively correlated with cambial browning, bacterial canker, and suckering, but was weakly associated with trunk growth and gummosis. A desirability index of 100 indicated that Lovell had the best overall PTSL related performance; Siberian C with an index of 31.2 was the poorest and should not be used on PTSL prone sites. | |
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