AGRI 32 LAB EXAM Flashcards
intentional multiplication of a plant while preserving its unique characteristics
Plant propagation
- asexual seed production
- embryo was formed from an unreduced egg, or from the nucellar tissues of the ovary of the mother plant.
Apomixis
Species or individuals that produce both sexual and asexual embryos
facultative apomicts
-development of more than one embryo in a single seed
-The seed usually contains one sexual embryo and the
rest are asexual embryos.
Polyembryony
Mangosteen, lanzones, Citrus, and mango exhibit ________
apomixis
Mango, Citrus, and lanzones exhibit _________
polyembryony
ability of the seed to germinate and produce a normal seedling under favorable conditions
Seed viability.
seed coat physically serves as barrier, inhibiting water imbibition and gas exchange; and restricts embryo enlargement
Exogenous or coat-imposed dormancy
this type of dormancy may be due to presence of a chemical inhibitor (eg. ABA); or embryo dormancy
Endogenous or physiological dormancy
seeds that can be dried to low moisture content and can be stored in low temperature without losing viability even for an extended period. To
Orthodox seeds
mechanical manipulation of the soil resulting to soil tilth favorable for seed
germination and plant growth
Tillage
