Effect of sources of sweetpotato planting material for quality vine and root yield

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Why is it important?

The work done here was to observe the yield of sweetpotato varieties that came from two sources, net tunnel and open field in a combination of using the pathogen-tested planting material versus an apparently clean planting by rogueing the diseased plant from the field (Negative Selection). This type of cultural practices, e.g. rogueing diseased plant from the field, if it is intensively done, it might help maintain the yield potential of sweetpotato varieties being cultivated by farmers in their locality. Since the sweetpotato increasingly becomes a commercial crop, the vine producers need to keep a good quality of their planting materials for sales. Using a net-tunnel could be advised for it.