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甘薯实生苗栽培预期能简化通过茎部切穗移植的常规种植程序。据估计,实生苗栽培与常规方法相比,在生长期能够减少40％的工作时。自从茂村等(1966)发现在日本的田间条件下自然开花的种群之后,报道并确立了一些实生苗栽培的试验和育种工作。但是,在这些试验中,发现实生苗栽培的产量较低,大约至多只相当于高产的常规栽培品种Koganesengan的70％。山川和阪本(1979,1981)报道,甘薯实生苗栽培产量较低的主要原因是由于生育前期
Sweet potato seedling cultivation is expected to simplify the conventional planting procedure by transplanting stems. It is estimated that seedling cultivation can reduce the work-time by 40% in the growing season compared with the conventional method. Since the discovery of the natural flowering population under field conditions in Japan by Mao et al. (1966), some experiments and breeding work on seedling cultivation have been reported and established. However, in these experiments, the yield of seedling culture was found to be lower, at the very least as high as only 70% of the high-yielding conventional cultivar Koganesengan. Yamakawa and Sakamoto (1979,1981) reported that the main reason for the lower yield of sweet potato seedlings is due to the early growth period