強勢台木とわい性台木を用いたリンゴ‘ジョナゴールド’樹の乾物生産およびその分配の比較

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  • Comparison in Dry Matter Production and Assimilate Partitioning between 'Jonagold' Apple Trees on an Invigorating Rootstock Versus a Dwarfing Rootstock.
  • キョウセイ ダイギ ト ワイセイ ダイギ オ モチイタ リンゴ ジョナゴールド

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Growth characteristics and dry matter production in 'Jonagold' apple trees on M. 26 dwarfing rootstock were compared with those on Maruba-Kaido (Motifs prunifolia Borkh. var. ringo Asami), an invigorating rootstock during 1991. Fresh weights of scion and root- stock of trees on Maruba-Kaido were 14.2 and 12.6 times heavier, respectively, than those on M. 26. Top (scion) /rootstock fresh weight ratio (T/R), however, did not differ significantly between these trees on different rootstocks, indicating that the scion and rootstock sections of the trees grew proportionately.<BR>The ratio of tree weights (T + R) to leaf weights (B) of the trees on Maruba-kaido was 1.5 times greater than that of the trees on M. 26. This indicates that leaves on trees on Maruba-Kaido contributed to the production of more woody tissue than did those on trees on M. 26. However, we found that the fruit/leaf dry weight ratio (F/L) of 'Jonagold'/M. 26 was about twice that of 'Jonagold'/Maruba-Kaido. In spite of a relatively heavier fruit load the average weight per fruit and the annual incremental change in wood volume did not differ significantly between these trees on different rootstocks.<BR>Our findings on the relationship between (T+R) /B and F/L elucidate how invigorating and dwarfing apple rootstocks can affect assimilate partitioning.

収録刊行物

  • 園芸学会雑誌

    園芸学会雑誌 62 (3), 513-517, 1993

    一般社団法人　園芸学会

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