The selection methods applied in soybean breeding are those used in improving autogamous plant species . 大豆育种工作中应用的选择方法即是那些用于改良自花授粉植物的方法。
2.
The stamens and pistil of d . versipelis mature before the flowers open , which shows that dysosma versipelis may be autogamous . d . versipelis produce few fruits . ovaries of d . versipelis seldom develop in nature , but will develop after being pollinated with pollen of another plant 八角莲的花在花苞未展开时，雄蕊和雌蕊便已成熟，说明八角莲的繁育系统为自花受粉，八角莲座果率非常低，自然状态下，子房不膨大，人工异交后的子房有膨大现象，说明八角莲自交低育，有生殖障碍。
