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一、雌蕊结构及其发育小麦的麦穗上互生着小穗,小穗是长在小穗轴上。每一小穗有两个颖片(护颖)包被着数朵小花。小花由内向外是由1枚雌蕊,3枚雄蕊,2枚浆片,1枚内稃(内颖)及1枚外稃(外颖)组成。雌蕊由子房,花柱和柱头构成。子房内面着生有1个胚珠,胚珠有2层膜状的珠被包裹。胚珠有短柄着生于胎座上。胚柄与珠被相连处为合点,胚珠顶端
First, the pistil structure and development of wheat on each other with spikelets, spikelets are long in the rachilla axis. Each spikelet has two glumes (retaining Ying) coated with a few flowers. Small flowers from the inside out by a pistil, three stamens, two pulp, a Neiwan (Ying) and a lemma (foreign) composition. Pistil composed of ovary, style and stigma. There are 1 ovule inside the ovary, and 2 layers of ovule in the ovule are wrapped. Ovules with short stalk born in the placenta. Petiole and beads are connected at the junction of the ovule top