CAJ | 학술논문

对敖汉苜蓿的授粉受精、花粉萌发以及胚胎发育过程进行了研究.结果表明,敖汉苜蓿在人工授粉10min后花粉粒的内壁穿过外壁的萌发孔向外突出,20min时形成花粉管,1h后花粉管触及柱头,而后沿花柱道伸长.24～27h到达子房开始受精;经过受精作用胚细胞开始分裂分化,到第22d便形成了具有胚根、胚轴、胚芽和子叶的完整胚.胚的整个形成过程可分为三个阶段:球状胚形成期、子叶形成期、胚各部分发育成熟期.
대오한목숙적수분수정、화분맹발이급배태발육과정진행료연구.결과표명,오한목숙재인공수분10min후화분립적내벽천과외벽적맹발공향외돌출,20min시형성화분관,1h후화분관촉급주두,이후연화주도신장.24～27h도체자방개시수정;경과수정작용배세포개시분렬분화,도제22d편형성료구유배근、배축、배아화자협적완정배.배적정개형성과정가분위삼개계단:구상배형성기、자협형성기、배각부분발육성숙기.
Pollination, fertilization and embryo development of Medicago sativa L. cv. 'Aohan' were observed. The result showed that internal wall of pollen passes through the germination aperture in the external wall and protruded in 10 minutes of artificial pollination. After 20 minutes a pollen tube forms. An hour later the pollen tube touches the stigma, then the pollen tube stretches along the passage of style, reaches to ovary in 24 to 27 hours. Embryo cell begins to split and divide, entire embryo with radical, plumular axis, plumule and cotyledon forms in 22 days. The whole forming process of embryo may be divided into three stages: globular embryo stage, cotyledon stage, and development of all parts of embryo.