+ Site Statistics
References:
52,654,530
Abstracts:
29,560,856
PMIDs:
28,072,755
+ Search Articles
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ PDF Full Text
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Translate
+ Recently Requested

Nitrogen metabolism in crop plants 15. the effects of light intensity and tri iodo benzoic acid on the photosynthetic capacity and nitrogen metabolism in the 2 contrasting varieties of soybean plants



Nitrogen metabolism in crop plants 15. the effects of light intensity and tri iodo benzoic acid on the photosynthetic capacity and nitrogen metabolism in the 2 contrasting varieties of soybean plants



Japanese Journal of Crop Science 47(1): 124-132



Using two soybean varieties, 'Harosoy' and 'Tosan No. 89', which contrasted in growth habit, the relationship between the photosynthetic activity of leaves and N metabolism with reference to leaf growth was examined. 'Harosoy' had far less leaf area than 'Tosan No. 89'. In 'Harosoy', leaf area decreased with the reduction of light intensity under which the plants were grown. In 'Tosan No. 89', the leaf area development was promoted by moderate shading. 'Harosoy' showed higher photosynthetic activity compared with 'Tosan No. 89' when they were grown under full natural light. In the case of the former variety, photosynthetic activity distinctly decreased with the reduction of light intensity during the growing period. In 'Tosan No. 89', shading did not necessarily depress photosynthetic activity so long as it was not severe. Such variations in photosynthetic activity with variety and light were associated with the parallel variations in soluble proteins and fraction-1 protein. TIBA [triiodobenzoic acid] spraying depressed leaf expansion and increased photosynthetic activity. Such variation in photosynthetic activity was associated with the parallel variations in total-N, protein-N, soluble protein and non-protein-N. The effects of TIBA were especially marked under conditions in which leaf expansion was great. The photosynthetic activity of leaves is evidently regulated through protein metabolism. This is under the control of hormones concerned with leaf expansion.

(PDF emailed within 1 workday: $29.90)

Accession: 005986847

Download citation: RISBibTeXText


Related references

Nitrogen metabolism in crop plants 16. changes in photosynthesis and nitrogen metabolism in relation to leaf area growth of several rice varieties. Japanese Journal of Crop Science 48(1): 10-16, 1979

Effects of 2,4-dichlorophenoxyacetic acid upon the nitrogen metabolism and water relations of soybean plants grown at different nitrogen levels. Bot Gaz 113(3): 322-333, 1952

Nitrogen metabolism in crop plants. XIII. Effects of nitrogen top-dressing on the cytokinin content of the root exudate of rice plants. Proceedings of the Crop Science Society of Japan 43(1): 47-51, 1974

The interaction of light intensity and nitrogen supply in the growth and metabolism of grasses and clover (Trifolium repens). II. The influence of light intensity and nitrogen supply on the leaf production of frequently defoliated plants. Ann. Bot. Lond, 2: 765-91, 1938

Studies on nitrogen metabolism in crop plants. XI. The changes of absicisic acid and cytokinin-like activity accompanying with growth and senescence in the crop plants. 1971

Studies on nitrogen metabolism in crop plants 17. effects of cyto kinin and removal of root tip on the assimilation of nitrogen 15 labeled ammonium nitrogen by excised rice roots. Japanese Journal of Crop Science 48(4): 457-462, 1979

Studies on nitrogen metabolism of soybean plants part 2 proportions of labeled and nonlabeled nitrogen transported to various parts of the plants. Japanese Journal of Crop Science 42(3): 322-326, 1973

Studies on nitrogen metabolism of soybean plants. 2. Proportions of labelled and nonlabelled nitrogen transported to various parts of the plants. Proceedings of the Crop Science Society of Japan 42(3): 322-326, 1973

Effects of low light intensity on photosynthetic capacity, photosynthetic nitrogen utilization efficiency and nitrogen partition in non-heading Chinese cabbage leaves. 2007

Studies on nitrogen metabolism in crop plants, 12. Cytokinins and abscisic acid-like substances levels in rice and soybean leaves during their growth and senescence. Proceedings of the Crop Science Society of Japan 42(3): 280-287, 1973

Studies on nitrogen metabolism of soybean plants part 1 transport and metabolism of labeled and nonlabeled nitrogen. Japanese Journal of Crop Science 42(2): 154-163, 1973

Effects of nitrogen source on growth nutrition photosynthetic rate and nitrogen metabolism of mycorrhizal and phosphorus fertilized plants of lactuca sativa l. New Phytologist 121(2): 227-234, 1992

Studies on nitrogen metabolism in crop plants. XII. Cytokinins and abscisic acid-like substances levels in rice and soybean leaves diring their growth and senescence. 1973

Studies on nitrogen metabolism of soybean plants part 3 effects of topping on the export of nitrogen and amino acids from the leaves. Japanese Journal of Crop Science 44(2): 172-177, 1975

Nitrogen metabolism in crop plants. 5. Changes in the nitrogen compounds in rice plants with aging. Proc. Crop Sci. Soc. Japan. Japan, 38: 575-586, 1969