Alguns dados de rendimento de ramí em caule, casca e fibra

Medina, J. C.

doi:10.1590/S0006-87051942000900002

SUMMARY

1. In the present article the author gives preliminary results on average composition on samples of ramie plant.

2. The leaves and tops represent from 55 to 60 per cent of the total weight of green plants cut.

3. In the samples from Campinas the average percentages of green and dry stalks less tops and leaves are about 45 and 14 per cent of the total weight of green plants cut.

4. In the samples from Ribeirão-Preto the average percentages of green stalks defoliated and topped and of green ribbons are about 40 and 6 per cent respectively of the total weight of green plants cut.

5. The average percentage of dry ribbons in the samples from Campinas and Ribeirão-Preto are about 2,3 and 1,6 per cent respectively of all green plants cut. Perhaps this difference is due to the conditions under which the decortication was carried out. In Campinas it was made on dry stalks while in Ribeirão-Preto on green ones.

6. The samples from Campinas showed an average percentage of pure fiber in all green plants cut of about 1 per cent while those from Ribeirão-Preto nearly 0,7 per cent.

7. In both the samples from Campinas and Ribeirão-Preto the average percentage of pure fiber in dry ribbons is about 45 per cent, that is, the raw fiber or "China grass" lost during degumming about 55 per cent of its weight.

8. Finally the fiber obtained from ribbons stripped of either the green or the dry stalks presents the same aspect after the bleaching operation.,

Texto completo disponível apenas em PDF.

Full text available only in PDF format.