四季桂越冬养植生长试验

Overwintering Breeding Growth Test of Osmanthus fragrans cv. Semperflorens

四季桂是桂花中的名贵品种，体形小、花期长、香味浓，便于家庭养植，受到人们的喜爱，但在北方越冬管理较难，制约着四季桂的发展。通过几年对比试验，室外养植时，采用薄膜覆盖技术措施，为开春气温回升时生长、观赏打下良好基础；室内养植时，温度区间在0～5℃时，可为开春植株生长和开花提供保障。温度区间在5～10℃时，植株生长健壮、花数量多，观赏效果最佳，是最理想的室内越冬养植方式。

Osmanthus fragrans cv. Semperflorens is the rare Osmanthus variety with small size, long flower season and thick fragrance. People likeOsmanthus fragrans cv. Semperflorens because it is easy for family farming. In the north winter management is more difficult, and restricts its development. The contrast test of a few years indicated film covering technology can provide good foundation for the growth in spring whenOsmanthus fragrans cv. Semperflorens is planted out of doors, and the optimum temperature is 0 - 5℃ when it is planted indoor. When the temperature is in the range of 5 - 10℃, plant grows very well, and the number of flowers is high with best ornamental effect. So it is the most ideal wintering indoor breeding mode.