Abstract

Trunk diameter, yield, root sprout production, and tree mortality of `Redglobe' peach were evaluated over a 14 year period on 5 rootstocks; `Lovell', `Halford', `Nemaguard', `Bailey', and `Siberian C'. Trunk diameter in year 14 was not different for trees on `Lovell' and `Halford', with diameters on 23.7 and 23.5 cm respectively, as compared to 93 and 45 kg on `Halford'. These were not significantly different from each other. Both `Lovell' and `Halford' produced 1.8 root sprouts per tree or less both years. Trunk diameter on `Nemaguard', `Bailey', and `Siberian C' was different from `Lovell' and `Halford'. Yields on `Nemaguard', `Bailey', and `Siberian C' were 92, 88, and 41 kg respectively, in year 12, with trees on `Siberian C' being different from the other 4 rootstocks. Yields in year 14 were 60 kg on `Nemaguard', 50 kg on `Bailey', and 28 kg on `Siberian C'. Root sprout averages per tree on `Nemaguard' were 1.6 and 6.7 in years 8 and 14 while `Bailey' averaged 1.1 and 7.7. Root sprouts on `Siberian C' were low in year 8, but increased in year 14 to 15.1 per tree. Tree mortality on `Siberian C' was 44% by year 14.

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