BIOL 1050 Lecture Notes - Lecture 2: Monocotyledon, White Meat, Adventitiousness
19 Nov 2016
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Ex: lettuce seeds look at the spectrum of light: ratio of red to far red light. Fruit: swollen ovary around a seed (ex: dandelion fluff: dry and fleshy fruit both include a swollen ovary, so(cid:373)e fruits do(cid:374)"t ha(cid:448)e seeds (cid:894)parthe(cid:374)o(cid:272)arpy(cid:895) Sele(cid:272)ted triploid pla(cid:374)ts to (cid:271)e seedless or it"s (cid:374)atural. If you try to go through meisosis with an odd number of chromosomes then chromosomes cant divide equally and so they are unviable and it aborts therefore no seeds. Inside seeds must go through digestive tract and be dispersed later. Fruits do(cid:374)"t (cid:271)e(cid:272)o(cid:373)e attra(cid:272)ti(cid:448)e (cid:894)(cid:272)olor and taste) until they are ready to be dispersed. Expulsion as the pod dries ex: legumes, sandbox tree. Seed germination: imbibition of water (water uptake) when radicle emerges through the micropyle then germination is complete and the plant emerges from soil, hypogeal germination: in monocots. Cotyledon stays underground: epigeal germination: monocots. Hypocotyl elongates and the seed is the part that emerges from the ground: dicots:
