Production of cassava foliage as a protein source for animal feed
1993
Chairat Petchalanuwat
Nine cassava clones were selected from 128 clones for high and low leaf protein content. These 9 selected clones were planted at Sriracha Research Station and Rayong Field Crop Research Center. There varietal differences in leaf protein content which on the average varied from 22-30 %. MKUC 28-60-2 and MKUC 28-5-2, had high leaf protein content as well as high root starch content. By analyzing amino acids content in the leaf of 4 cassava clones variation in lysine and methionine were detected. The results indicated that it is possible to select cassava clone for protein qaulity. Field experiments were conducted at Sriracha Research Station in dry season and Rayong Field Crop Research Center in the rainy season, 1988-1990 to determine the effect of cultivars, plant spacings and topping frequencies on top yield, fresh root and starch yield of cassava. The experiment lay out was a Split-split plot design consisted of 2 cultivars i.e. Rayong 1 and Rayong 60 in the main plots, 4 plant spacings i.e. 40x40, 40x50, 40x80, 100x100 cm in the sub plots, and 4 topping frequencies i.e. 6, 5 4 and 1 times/year in the sub-sub plots. The results indicated that cultivars and plant spacings had no statistically significant effect on top yield, fresh root and starch yeild. Increasing the frequency of topping increased top yield, but it decreased root and starch yield. In addition, topping should be done during rainy season.
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