モモ'川中島白桃'樹における<SUP>15</SUP>Nの吸収および分配に及ぼす台木および中間台木の影響

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  • Effects of Rootstock and Interstock on 15N-labeled Nitrogen Absorption and Distribution in 'Kawanakajima Hakuto' Peach Trees

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The absorption and distribution of applied nitrogen were determined in 4-year-old 'Kawanakajima Hakuto' peach trees grafted on Prunuspersica (L.) Batsch (PP) and P. tomentosa Thunb. (PT) rootstocks and compatible interstock ('Chikuma') /P. tomentosa (IS) by using a 15N tracer in the pot experiments. At fruit harvest, 55.7 to 61.3% of the absorbed nitrogen was partitioned to the leaves. The 15N atom% excess in every scion part and the total amount of absorbed 15N were significantly higher in PP and IS than in PT. These results suggest that the use of a compatible interstock, 'Chikuma', improves absorption and upward movement of applied nitrogen, thus it overcomes incompatibility between 'Kawanakajima Hakuto' and P. tomentosa.

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  • 園芸学会雑誌

    園芸学会雑誌 72 (3), 177-181, 2003

    一般社団法人　園芸学会

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