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Influence of tobacco plant spacing on ranges of certain chemical constituent values in the leaf

Influence of tobacco plant spacing on ranges of certain chemical constituent values in the leaf

Duvan 9: 245-251

Values are tabulated for nicotine, total N, protein, sol. sugars, and total ash and their variable interrelations. Polyphenols are tabulated for abs. and relative values both for content alone and for that of total redn. Both polyphenol (I) and Shmuk's nos. (Khim. Tabaka i Makhorki, Moscow, 1948) are listed for each of 4 plots that varied in size from 45 x 10 cm. to 45 x 25 cm. spacings for transplanted Prilep seedlings. Nicotine, N, and protein values rose with the increases of space between plants, total ash values were erratic, and sol. sugars little affected. Shmuk's no. increased with the crowding of plants, although the I no. was erratic in this respect. Briefly, optimum spacing accounted for improved leaf quality. 4 references.

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