Effects of Fruit Cluster Size and Shoot Type on Selected Pecan Characteristics

in HortScience
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  • 1 Oklahoma State Univ., Horticulture & Landscape Architecture, Stillwater, OK 74075
  • | 2 Oklahoma State Univ., Horticulture & Landscape Architecture, Stillwater, OK 74078
  • | 3 Oklahoma State Univ., Horticulture & Landscape Architecture, Stillwater, OK 74078
  • | 4 Kansas State Univ., Horticulture, Forestry, & Recreation Resources, Chetopa, KS 67336

Whole fruit clusters were collected from three shoot types: terminal and lateral shoots without secondary growth, and shoots with secondary growth. Fruit per cluster was counted and nuts were individually weighed, shelled and graded. Return bloom of the same shoots was measured. Results indicated that cluster size of lateral bearing shoots was negatively related to next year's average kernel weight, nut weight, and kernel percentage. However, only kernel percentage was related to cluster size on terminal bearing shoots, and none of these parameters were related to cluster size on shoots with secondary growth. Cluster size and total kernel weight per shoot were positively related for the three shoot types. Return bloom of terminal shoots was negatively related to cluster size, but cluster size did not affect return bloom of the other shoot types.

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