Articles

STUDIES ON TREE ARCHITECTURE IN YOUNG ‘RED FUJI’ APPLE TREE

Article number
903_126
Pages
903 – 907
Language
English
Abstract
The architecture of young ‘Fuji’ apple trees was analyzed in high density orchards.
Four architectural tree types were determined: weak tree, high yield tree, moderate growth tree and young tree with active growth.
The discrimination functions of the four tree types were:

  • Weak tree: Y=2.0×1-0.000011×2+0.47×5+0.70×6-0.0012×7+99×8+0.058×9;
  • High yield tree: Y=2.1×1+0.000068×2+0.50×5+0.80×6+0.000045×7+121×8+ 0.064×9;
  • Moderate growth tree: Y=1.9×1+0.000057×2+0.55×5+0.73×6-0.00013×7+129×8+ 0.079×9; and
  • Young tree with active growth: Y=2.9×1-0.000029×2+0.63×5+0.83×6-0.00098×7+ 106×8+0.054×9.

Where x1=stem conference (cm); x2=branch numbers per mu (piece); x5=proportion of fine short branch (%); x6=proportion of weak short branch (%); x7=yield per mu (kg/0.067 ha); x8=fruit color index; x9=fruit size (g).

Publication
Authors
J. Yuanmao, P. Futian, S. Huairui
Keywords
Malus × domestica, discrimination function
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