Planting and harvesting methods of sweet potato
1992
Ridwan | Irfan, Z.
Two experiments were carried out in Koto Hilalang, Bukittinggi (1984/85) and Rambatan, Batusangkar (1988/1989), West Sumatra. The first experiment dealt with the planting methods on 3 genotypes (Daya, Local Batagak, and I 307 (cp)-st-10). The harvesting methods were evaluated using 3 genotypes (Daya, Karya, and Local Rambatan). The results showed that planting methods did not significantly affect the number of tubers produced by each genotype. The yield, however, was slightly influenced by the planting methods. Genotypes differed in yield for each planting method. The half-circled planting method gave the highest yield for Daya and I 307 (cp)-st-10. The best yield from local variety Batagak was obtained with horizontal planting method. Two or three harvesting done periodically gave higher total production compared to one harvest only
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