Germination of seed

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2. • INTRODUCTION
• TYPE OF GERMINATION
• GROWTH FACTOR
• SEED DORMANCY
• REFERENCE
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3. • Seed Germination in plants is the process by
which a dormant seed begins to sprout and
grow into a seedling under the right growing
conditions.
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4. 1. EPIGEAL GERMINATION
2. HYPOGEAL GERMINATION
3. VIVIPAROUS GERMINATION
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8. • BIOTIC FACTOR
1. VIABILITY OF SEED
2. DORMANCY PERIOD
• ABIOTIC FACTOR
1. LIGHT
2. TEMPERATURE
3. OXYGEN
4. SOIL
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9. 1. VIAABILITY OF SEED
2. DORMANCY PERIOD
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10. 1. LIGHT.
2. TEMPERATURE
3. OXYGEN
4. SOIL
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11. • EXOGENOUS DORMANCY
1. Physical
2. Mechanical
3. Chemical
• ENDOGENOUS DORMANCY
1. Physiological
2. Morphological
3. Combined
• COMBINATIONAL DORMANCY
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12. 1. PHYSICAL
2. MECHANICAL
3. CHEMICAL
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13. • PHYSIOLOGICAL
1. DRYING
2. PHOTODORMANCY
3. THERMODORMANCY
• MORPHOLOGICAL
• COMBINED
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14. • Combinational dormancy occurs in some
seeds, where dormancy is caused by both
exogenous (physical) and endogenous
(physiological) conditions. Some species have
both hard impermeable seeds coats and
physiological dormancy.
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15. • SEED SCIENCE AND TECHNOLOGY BY SUBIR
SEN,NABINANADA GHOSH.
• THE GERMINATION OF SEED BY A.M MAYER,
A.POLJAKOFF-MAYBER.
• SEED DORMANCY AND GERMINATION BY J. W.
BRADBEER.
• BEWLEY, J.D. AND M. BLACK, 1994. SEEDS:
PHYSIOLOGY OF DEVELOPMEN AND
GERMINATION, 2ND EDITION, P: 445. PLENUM
PRESS, NEW YORK.
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