In peas there is an initial deposition of materials in the endosperm following anthesis.豌豆中紧随开花期之后胚乳开始有物质积累.Conelet - drop is at a maximum when shoot extension occurs at a time close to anthesis.在接近开花而营养枝又在伸长时,球花早落的数量达到最...
...asexual parasites.无性器官的寄生虫It is another unfortunate myth of our culture that older people are asexual.我们的文化里还有一种错误观念,就是认为上了年纪的人就不再有性欲了。asexual reproduction无性生殖...asexual reproduction.无性繁殖The asexual polyp in the life ...