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Article type: Cover
1938 Volume 12 Issue 6 Pages
Cover1-
Published: December 10, 1938
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Article type: Appendix
1938 Volume 12 Issue 6 Pages
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Article type: Index
1938 Volume 12 Issue 6 Pages
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Article type: Appendix
1938 Volume 12 Issue 6 Pages
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K. MIYAKE, Y. ISHIZUKA
Article type: Article
1938 Volume 12 Issue 6 Pages
541-566
Published: December 10, 1938
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The authers intended to study the physiological significance of six important elements of plant nutrients, that is, Nitrogen, Phosphorus, Potassium, Calcium, Magnesium and Sulfur for the growth and oil content of mint plant. In the present paper, the results obtained are mainly discussed on the influence of each element manifested in its deficiency.
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Article type: Appendix
1938 Volume 12 Issue 6 Pages
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Tomota SUGAWARA
Article type: Article
1938 Volume 12 Issue 6 Pages
567-576
Published: December 10, 1938
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The estimation of vitamin C and carotin in the vegetable has hitherto been carried out by many investigators. Their results can be looked upon as an average and sufficiently valuable for practical use, because the plants were prevailingly analysed through their growing period. It may however, be very intresting, from point of view to the crop production if the vitamin C content in the plant is influenced by fertilizer. Some field experiments were planed by the author for the inquiring into the true state of the affair. Spinach ("Land sp." "Hollandia")was selected as material of the experiment, for its rapid growth and the considerable large content of vitamin C. The ascorbic acid content of leaves was determined by the titration method of Tillman and Birch et al. with 2,6-Dichlorphenol indophenol in acid medium. The chlorophyll and carotin content was also measured by colorimetric method. The results are summerized as follows : (1) The vitamin C, carotin and chlorophyll contents of the spinach largely depend on the amount of fertilizers in the soil. (2) A lager amount of the nitrogen result is greater vitamin C carotin and chlorophyll contents, and these contents were markedly low in the leaves of the nitrogen-deficient plants. (3) The effect of phosphorous and potassium in the vitamin C, carotin and chlorophyll contents was much smaller than that of the nitrogen. (4) Generally the increase in vitamin C content is most distinct in the plant grew up on the soil, which contained of the larger nitrogen. Under the conditions, the influence of phosphorous and Potassium salts upon the vitamin C content is less.
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[in Japanese]
Article type: Article
1938 Volume 12 Issue 6 Pages
577-586
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[in Japanese]
Article type: Article
1938 Volume 12 Issue 6 Pages
587-590
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[in Japanese]
Article type: Article
1938 Volume 12 Issue 6 Pages
591-592
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[in Japanese]
Article type: Article
1938 Volume 12 Issue 6 Pages
593-596
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[in Japanese]
Article type: Article
1938 Volume 12 Issue 6 Pages
597-600
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[in Japanese]
Article type: Article
1938 Volume 12 Issue 6 Pages
601-
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[in Japanese]
Article type: Article
1938 Volume 12 Issue 6 Pages
601-
Published: December 10, 1938
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[in Japanese]
Article type: Article
1938 Volume 12 Issue 6 Pages
601-602
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Article type: Article
1938 Volume 12 Issue 6 Pages
602-
Published: December 10, 1938
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[in Japanese]
Article type: Article
1938 Volume 12 Issue 6 Pages
602-
Published: December 10, 1938
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[in Japanese]
Article type: Article
1938 Volume 12 Issue 6 Pages
602-603
Published: December 10, 1938
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Article type: Article
1938 Volume 12 Issue 6 Pages
603-
Published: December 10, 1938
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Article type: Article
1938 Volume 12 Issue 6 Pages
603-
Published: December 10, 1938
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Article type: Article
1938 Volume 12 Issue 6 Pages
603-
Published: December 10, 1938
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Article type: Article
1938 Volume 12 Issue 6 Pages
603-
Published: December 10, 1938
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Article type: Article
1938 Volume 12 Issue 6 Pages
603-604
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Article type: Article
1938 Volume 12 Issue 6 Pages
604-
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Article type: Article
1938 Volume 12 Issue 6 Pages
604-
Published: December 10, 1938
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Article type: Article
1938 Volume 12 Issue 6 Pages
604-605
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Article type: Article
1938 Volume 12 Issue 6 Pages
605-
Published: December 10, 1938
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Article type: Article
1938 Volume 12 Issue 6 Pages
605-
Published: December 10, 1938
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Article type: Article
1938 Volume 12 Issue 6 Pages
605-
Published: December 10, 1938
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Article type: Article
1938 Volume 12 Issue 6 Pages
605-
Published: December 10, 1938
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Article type: Article
1938 Volume 12 Issue 6 Pages
605-606
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Article type: Article
1938 Volume 12 Issue 6 Pages
606-
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Article type: Article
1938 Volume 12 Issue 6 Pages
606-
Published: December 10, 1938
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Article type: Article
1938 Volume 12 Issue 6 Pages
606-
Published: December 10, 1938
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Article type: Article
1938 Volume 12 Issue 6 Pages
606-607
Published: December 10, 1938
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Article type: Article
1938 Volume 12 Issue 6 Pages
607-
Published: December 10, 1938
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Article type: Article
1938 Volume 12 Issue 6 Pages
607-608
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Article type: Article
1938 Volume 12 Issue 6 Pages
608-
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Article type: Article
1938 Volume 12 Issue 6 Pages
608-
Published: December 10, 1938
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Article type: Article
1938 Volume 12 Issue 6 Pages
608-609
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Article type: Article
1938 Volume 12 Issue 6 Pages
609-
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Article type: Article
1938 Volume 12 Issue 6 Pages
609-
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Article type: Article
1938 Volume 12 Issue 6 Pages
609-
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Article type: Article
1938 Volume 12 Issue 6 Pages
609-610
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Article type: Article
1938 Volume 12 Issue 6 Pages
610-
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Article type: Article
1938 Volume 12 Issue 6 Pages
610-
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Article type: Article
1938 Volume 12 Issue 6 Pages
610-611
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Article type: Article
1938 Volume 12 Issue 6 Pages
611-
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Article type: Article
1938 Volume 12 Issue 6 Pages
611-
Published: December 10, 1938
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Article type: Article
1938 Volume 12 Issue 6 Pages
611-612
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