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Re: [fukuoka_farming] indication of rhizobia

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  • Dieter Brand
    Etem, I have never used alfaalfa, it doesn t grow well on my soil. But with most legumes, the nodules are white on the outside, and when you cut them in half
    Message 1 of 2 , Dec 4, 2008
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      Etem,

      I have never used alfaalfa, it doesn't grow well on my soil. But with
      most legumes, the nodules are white on the outside, and when you cut
      them in half with a sharp knife the color of the cut surface will
      change to pink. If it stays white that means that the nodule is
      empty.

      Dieter


      On 12/4/08, Etem Tezcan <etem.tezcan@...> wrote:
      > Hello
      > I once read that when a legume is infected (not in a bad sense) with
      > rhizobium bacteria(i.e. it is actively fixing nitrogen from air), the
      > inside part of the nodules in the roots is reddish in color.
      > I once dug out roots of an alfalfa plant in my garden and the color was
      > whitish meaning that it was not infected with rhizobia.
      > Etem
      >
      >
      > ------------------------------------
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