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| Author: | M. Jorge |
Abstract:
Cassava (Manihot esculenta Crantz), is the most important crop in Mozambique.
Towards selecting good yielding varieties, a group of improved varieties were introduced from IITA in 1982. To determine the best planting date and growing cycle of some varieties, their root yield potential, and pest desease resistance, two trials with two different planting dates were conducted at Umbeluzi Research Station, in Maputo province in 1989. The highest number of roots per plant, root yield per hectare, and number of plants per hectare, were obtained with the second planting date (with a 13 months growth period) which had more of extra-large unmarketable root yield per plant and average root size, due to a long growing cycle and low plant density.
TMS 30001 and TMS 30395 varieties had good yield and grew very well at both planting dates, whereas Precoce de Angola and H58 varieties, performed better at the second planting dates.
Better performance was obtained for Fernando Po at the first planting date.
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