柱头外露棉花器形态与育性类型的关系研究

大田条件下观察柱头外露棉雌雄蕊外部形态特征,并调查分析花柱类型与花器官长度的关系。结果表明,可将柱头外露棉育性分为四大类:可育、半可育、败育和不育。

Morphological Characteristics of Floral Organ at Different Microspore Developmental Stage in Balsam Pear （Momordica Charantia L.）

The relationship between microspore developmental stages and morphological characteristics of floral organ in balsam pear was studied. The results showed that flower buds developed a series of morphological changes at different microspore developmental stages, and morphological characteristics of floral organ were significantly different when sampling from different part or cultivar of balsam pear. Anther at late-uninucleate stage was best for culture, in which stage flower buds swelled obviously, and white floss on the surface reduced. In addition, calyxes were obvious but did not spread, and the most of anthers were light green.