Seasonal changes of nodule activity, carbohydrates and nitrogen and their inter-relationships in alfalfa
1984
Ryoo, J.W. | Lee, H.J. (Seoul National Univ., Suwon (Korea R.))
Alfalfa field was established to investigate seasonal changes of nodule activity and contents of carbohydrates, and nitrogen, and also to examine their relationships in alfalfa (Medicago sativa L.). Periodical sampling of alfalfa in cutting plots was collected to measure growth of plants, development and activity of nodule, and content of carbohydrates and nitrogen in the third year following the year of establishment. Total nonstructural carbohydrates in roots were closely correlated with nodule weight and nodule activity. Also cutting in July prevented unnecessary losses of respiration during summer to provide rapid recovery of nodule activity
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