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  • Author or Editor: Lonnie C. Hendricks x
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A rootstock comparison trial for almond was planted in sandy soil near Atwater, Calif., in Feb.1989. The study consisted of five replications of five trees each for six rootstocks, each with two cultivars. The rootstocks were `Nemaguard' peach, `Nemared' peach, `Hansen 536' peach × almond hybrid, `'Bright's hybrid' (peach × almond), `Halford' peach seedling, and `Lovell' peach seedling. Two cultivars, `Nonpareil' and `Carmel', were used with each rootstock. The accumulated kernel production from `Nonpareil' through the 1998 harvest was highest for trees on `Hansen 536', second highest for those on `Nemaguard', and third highest for trees on `Bright's Hybrid'. The accumulated kernel production from `Carmel' was greatest for trees on `Bright's Hybrid' and second highest for those on `Hansen 536'. The hybrids have produced the largest trees, as indicated by trunk circumference, for both `Nonpareil' and `Carmel'. The greater production of trees on the hybrid rootstocks over those on the peach seedling rootstocks was probably a result of their greater size and not that the trees on the hybrid rootstocks were inherently higher-yielding.

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