The shedding of nodules by beans
1931
Wilson, J.K.
Plants were grown in soil whose moisture content was controlled. After nodulation had occurred the moisture content of the soil was reduced to definite values for 24 hours and the effect on the existing nodules observed. The outstanding observations are listed below. A reduction of soil moisture from 20 to 12.5% caused bean roots to shed on the average about 36% of their nodules. Some individual plants showed 57% of their nodules to be destructively affected by this drop in moisture. Shedding occurred more freely on small and fibrous roots than on larger roots.
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