Harvesting Semidwarf Freestanding Apple Trees with an Over-the-row Mechanical Harvester
Harvesting Semidwarf Freestanding Apple Trees with an Over-the-row Mechanical Harvester
复制标题
使用行间机械收割机收割半矮化独立式苹果树
DOI:
10.21273/jashs.119.6.1114
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发表时间:
1994
影响因子:
1.9
通讯作者:
J. D. Whitney
中科院分区:
文献类型:
--
作者:
D. L. Peterson;S. Miller;J. D. Whitney
Additional index words. Malus domestica, quality, efficiency, shaker, fruit, machine Abstract. Three years of mechanical harvesting (shake and catch) trials with two freestanding apple ( Malus domestica Borkh.) cultivars on a semidwarf rootstock (M.7a) and two training systems (central leader and open center) yielded 64% to 77% overall harvesting efficiency. Mechanically harvested 'Bisbee Delicious' apples averaged 70% Extra Fancy and 10% Fancy grade, while two 'Golden Delicious' strains ('Smoothee' and 'Frazier Goldspur') averaged 40% Extra Fancy and 13% Fancy grade fruit. Mechanically harvesting fresh-market-quality apples from semidwarf freestanding trees was difficult and its potential limited. Cumulative yield of open-center trees was less than that of central-leader trees during the 3 years (sixth through eighth leaf) of our study. 'Golden Delicious' trees generally produced higher yields than 'Delicious' trees.