| 摘要 |
<p>A method for perennially mass-propagating a useful annual plant by use of shoot primordium, comprises cutting off a shoot apex from the useful annual plant and transplanting the thus cut off shoot apex into an artificial culture medium containing an inorganic salt composition and a plant growth hormone; rotationculturing the shoot apex under the conditions that a temperature is 15-30.degree.C, an illumination intensity is 2,000-9,000 luxes and a number of revolution is 0.5-10 rpm to propagate the shoot primordium; and stationally culturing the shoot primordium to form young plants. The useful annual plant can be perennially mass-propagated in a short period of time while maintaining the genotype and chromosomal type for a number of years. This method is particularly effective with respect to the propagation of triploid water melon, hybrid vigor Indian corn, hybrid vigor rice plant, and hybrid morning glory.</p> |
