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trees, and the trial was bounded on the east and west ends by border rows of trees with the same scion. Tree survival in the trial was scored in 2011, by counting the number of surviving trees in each bed. Fruit-quality data were collected in 2012 (eight

sample, we make no conclusions regarding the effects of the treatments on tree survival. Results and discussion Plant growth: Trunk size. Container-grown trees showed only a modest increase during the first year, but grew well after year 1 ( Table 2 ). In

units comparable to that of ‘Marianna 2624’ or ‘Myrobalan 29 C’. Performance Field performance and tree survival of six plum rootstocks grafted with the Japanese plum cultivar 606 were compared in 9-year-old drip-irrigated field trial. The trial

the end of the experiment (Nov. 2006), tree survival, tree circumference, tree height, canopy width in two compass directions, and number of root suckers per tree were recorded. Canopy volume was calculated assuming a conical canopy shape. The distance

assessments Canopy health, tree survival, and leaning. Canopy color, canopy thickness, and foliar HLB disease symptoms were determined during Nov. 2019 by visual assessment of the third and sixth trees of each replicated plot. Canopy color and canopy thickness

returned to their prior position and the split was not apparent. However, the foliage weight bent the weakened limbs, making the damage visible. These limbs impeded orchard operations, requiring removal. Tree survival. Pecan trees can sustain loss of their

with preplant fumigation ( Horton et al., 2011 ). This rootstock was identified as providing greater tree survival than the recommended Lovell on PTSL sites, although M. xenoplax is capable of reproducing on it ( Nyczepir et al., 1983 ; Okie et al

States are planted to Malling rootstocks that lack cold-hardiness or tolerance of subfreezing temperatures ( Embree, 1988 ) and B.9, which has greater cold-hardiness ( Quamme and Brownlee, 1997 ). Based on controlled studies and tree survival under

peach × almond hybrid rootstocks. It also adapts well to different soil textures but prefers well-drained soils. Chilling requirements are low. Table 1. Field performance and tree survival of 10 rootstocks grafted with the nectarine cultivar

( Obreza and Morgan, 2008 ; Rogers et al., 2009 ). Data collection and analysis. Tree height was measured periodically. Tree survival was recorded in 2004, 9 years after planting. Annual samples of 50–60 fruit were collected from each plot near the time of