Protein Complex as Indicator of Seed Recalcitrance

Late stage of seed ripening and storage compounds accumulation is accompanied with maturation drying, seeds become desiccation tolerant, and may survive for a long time in the dry state. These seeds are named orthodox. However, part of species, especially originated from tropics, produces so-called recalcitrant seeds. Recalcitrant seeds do not dry at the end of maturation, they have high moisture content and active metabolism; recalcitrant seeds remain desiccation sensitive. Seed recalcitrance is often found in moist, warm climatic zones, without seasonal changing [1,2].