| 摘要 |
PROBLEM TO BE SOLVED: To obtain tubers having excellent adaptability to cultivation as seed tubers which are diseasfree and have decreased variations in sizes by exerting the stimuli of the showers of a nutritive soln. to growing stolon to promote the formation of potato tubers, thereby producing the potato tubers. SOLUTION: The stimuli to apply the showers of the nutritive soln. 5 are exerted to the growing stolon with an NFT water culture device, by which the formation of the potato tubers 2 is promoted and the potato tubers 2 are produced. The water depth of a nutritive soln. flow passage 5' is preferably 0.5 to 3cm. |
