Root physiology of japonica and indica rices (Oryza sativa L.) . 3. Nitrogen metabolism traced with 15N

Hou, C.R.

Journal of the Agricultural Association of China 127: 29-37


Accession: 001453346

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Results of excised root culture on R2 medium containing 15NO3 concurred with those of earlier experiments that nitrate uptake by the roots of japonica rice was faster than in indica rice in the early stages of culture and that subsequently the converse was true [see Plant Breeding Abstracts 54, 7459 and 8157]. In a seedling experiment, the shoot of Taichung 65 (japonica) synthesized more protein than that of Taichung Native 1 (indica), while the root of the latter synthesized more protein than the former.