Altered Dry Matter Partitioning of ‘Starkspur Supreme Delicious’ Apple Trees by Nine Rootstocks
DOI:
https://doi.org/10.71318/apom.2000.54.1.11Abstract
The dry matter partitioning to vegetative and reproductive components of ‘Starkspur Supreme Delicious’ apple ( Malus domesticaBorkh.) on nine rootstocks in the 1980-81 NC140 Apple Rootstock Trial was determined in March. and again in Oct.-Nov. 1990. Trees on MAC.24 and M.7 EMLA had the heaviest total tree dry weight (DW), while M.26 EMLA was intermediate. Trees on OAR 1, O.3, M.9 EMLA, MAC.9, and M.9 did not differ, and M.27 EMLA had the least total DW. Total tree DW was correlated negatively with percent of fruit, spur, and spur leaf DW and was correlated positively with the percentage of frame, 2-yr and 1-yr wood, current season's growth, and shoot leaf DW.
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