目前生产上推广应用的多倍体种子主要是包含有二倍体、三倍体及四倍体成份的混倍体(又称奇倍体),其中三倍体成份占50—60％。如果仅仅由四倍体(母)或二倍体(父)株上收获种子,能否提高其三倍体百分率,发挥更大经济效益,本试验证明,母本株上收获的种子,其三倍体率略有提高,根产量也有增加趋势,但不显著,含糖率无变化。因此,没有必要将目前这种采种方式改为从母本或父本上单收种子,因为它在经济上不合算,不能增加经济效益。 At present, the production of polyploid seeds to promote the use of mainly contains the diploid, triploid and tetraploid hybrid (also known as the aneuploidy), of which triploid accounted for 50-60%. If only by the tetraploid (mother) or diploid (parent) strains harvested seeds, can increase its triploid percentage, greater economic benefits, the test proved that the mother plant harvested seeds, the three Ploidy rate slightly increased root yield also increased, but not significant, no change in sugar content. Therefore, it is not necessary to change the current method of harvesting to single seed harvesting from the mother or paternity, since it is economically uneconomic and does not increase economic benefits.