Handbook of Plant and Crop Physiology

Most seeds consist of three parts: embryo, a miniature plant inside the seed; endosperm, stored food reserves for the growing em ...

tures [7]. The endosperm contains stored food reserves composed of carbohydrates, proteins, oils, and other biochemical substanc ...

Stage II (Active Metabolism and Hydrolysis) Continuing water uptake activates stored enzymes and stimulates synthesis of new o ...

such as Betullaspp. (birch), respond to long photoperiods and are categorized as “long-day” seeds. Small- seeded species, includ ...

species occurs while the seed is still on the parent plant, apparently because of lack of inhibiting chemi- cals [20]. The germi ...

B. Secondary Viable seeds of many woody species may not germinate for considerable lengths of time, even when con- ditions are i ...

64 CHONG ET AL. TABLE 1 Types of Seed Dormancy, Causal Factors, and Treatment Strategies Types of dormancy Cause Treatment strat ...

GERMINATION AND EMERGENCE 65 Some seeds may lose their requirement for light after dry storage. Most common in temperate herbace ...

66 CHONG ET AL. TABLE 2 List of Selected Flowering Herbaceous Plants Showing Desired Medium Temperature Regimes for the Germinat ...

GERMINATION AND EMERGENCE 67 Stratify 21 C 3 wk, freeze 5 wk, thensow 7–10 12–18 7–21 8–10 14–21 10–3010–3021–28 14–21 14–2114– ...

68 CHONG ET AL. TABLE 2 Continued Medium temperature ( C) Plant Posttransplant Days to Light or Species type Germination (night ...

GERMINATION AND EMERGENCE 69 Soak in warm water 6–8 hr If not sown fresh, stratify 5 C 4 wk If not sown fresh, stratify 5°C 3 w ...

70 CHONG ET AL. TABLE 2 Continued Medium temperature ( C) Plant Posttransplant Days to Light or Species type Germination (night ...

GERMINATION AND EMERGENCE 71 14–21 7–10 6–14 6–166–166–16 14–21 14–21 7–10 Brunnera macrophylla Siberian buglossBoraginaceae Bup ...

72 CHONG ET AL. TABLE 2 Continued Medium temperature ( C) Plant Posttransplant Days to Light or Species type Germination (night ...

GERMINATION AND EMERGENCE 73 Stratify 20–25°C 6–10 wk, then1–5°C 6–8 wk 7–147–14 14–21 14–21 7–307–30 5–10 5–14 14–21 10–21 10–1 ...

74 CHONG ET AL. Nick hard seed coat or soak in water6–9 hr Stratify 22 C 6–8 wk, then 0–2 C 6–8 wk Sow, then freeze 4–8 hr or ...

GERMINATION AND EMERGENCE 75 Freeze or stratify 15–18 C 4 wk, then 5 C 4 wk Stratify 3–5 C 6 wk Freeze or stratify 3–5°C 4–6 ...

76 CHONG ET AL. TABLE 2 Continued Medium temperature ( C) Plant Posttransplant Days to Light or Species type Germination (night ...

GERMINATION AND EMERGENCE 77 Stratify 5 C 4 wk Chill 7 days, then soak 4 hr in water Sow, then freeze 3 wk Ripen fresh seeds 22 ...