Production of foliage and effects of defoliation on root production in cassava
1996
Evangelio, F.A. | Abenoja, E. | Dingal, A.G. | Ferraren, D.O. (Visayas State Coll. of Agriculture, Baybay 6521-A, Leyte (Philippines). Philippine Root Crops Research and Training Center)
No significant effect of defoliation on root yield was observed. Likewise, the frequency of topping did not reduce the root yield of cassava. Application of nitrogen did not show significant increase in the amount of foliage in cassava. However, the amount of foliage was significantly highest at a population density of 26,667 per ha. Similarly, total root yield was not affected by nitrogen level but significantly influenced by population density (i.e., superior at 13,333 plants per ha). Topping cassava at different age and frequency did not affect the moisture content and dry matter yield of cassava shoot. However, the protein content of the topped shoots increased with the age of topping. Plants topped at 6 MAP gave the highest protein content of 27.39 percent. Continuous topping every 6 and 8 weeks gave higher protein content than topping at 4 weeks interval. Age and frequency of topping did not give significant effect on the production of marketable and nonmarketable roots
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