3. life cycle and morphology of mulberry silkworm...
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LIFE LIFE LIFE LIFE CYCLE OF CYCLE OF CYCLE OF CYCLE OF BOMBYX MORI BOMBYX MORI BOMBYX MORI BOMBYX MORI
AND AND AND AND
MORPHOLOGY MORPHOLOGY MORPHOLOGY MORPHOLOGY MORPHOLOGY MORPHOLOGY MORPHOLOGY MORPHOLOGY
OF OF OF OF OF OF OF OF
EGG, LARVA, PUPA & ADULTEGG, LARVA, PUPA & ADULTEGG, LARVA, PUPA & ADULTEGG, LARVA, PUPA & ADULTEGG, LARVA, PUPA & ADULTEGG, LARVA, PUPA & ADULTEGG, LARVA, PUPA & ADULTEGG, LARVA, PUPA & ADULTEGG, LARVA, PUPA & ADULTEGG, LARVA, PUPA & ADULTEGG, LARVA, PUPA & ADULTEGG, LARVA, PUPA & ADULTEGG, LARVA, PUPA & ADULTEGG, LARVA, PUPA & ADULTEGG, LARVA, PUPA & ADULTEGG, LARVA, PUPA & ADULT
Dr. Mahesha H BAssociate Professor
Department of SericultureYuvaraja’s College,
University of Mysore, Mysore, India
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LIFE CYCLE OF BOMBYX MORI
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LIFE CYCLE OF BOMBYX MORI
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SEASONS OF TEMPERATE ZONESEASONS OF TEMPERATE ZONESEASONS OF TEMPERATE ZONESEASONS OF TEMPERATE ZONE
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MV: EggMV: Egg--99--1212LarvaLarva-- 2020--2424PupaPupa-- 1010--1212MothMoth-- 33--6 6
BV: EggBV: Egg--1111--1414LarvaLarva-- 2424--2828PupaPupa-- 1212--1515MothMoth-- 66--10 10
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UniUni -- 1 gen/yr1 gen/yrBi Bi –– 2 gen/yr2 gen/yrMvMv –– 66--8 gen/yr8 gen/yr
Larval StageLarval StageMoultingMoultingMature WormMature WormSpinning of the cocoonSpinning of the cocoon
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Morphology Morphology of of
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of of EGG, LARVA, PUPA & ADULTEGG, LARVA, PUPA & ADULT
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11--1.3 mm1.3 mm0.550.55--0.6mg0.6mgOvaoidOvaoid//
0.90.9--1.2 mm1.2 mm
One Laying
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OvaoidOvaoid//SphericalSphericalFlat at ventral sideFlat at ventral sideMicropyleMicropyleRespiratory channelsRespiratory channels
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3mm3mm
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10cm10cm
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AbdomenAbdomenElevenEleven
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Thorax Thorax Three Three
Head Head Six Six
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HeadHeadHypognathous Hypognathous
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Coloured scanning electron micrograph (SEM)of the head of a silkworm moth caterpillar(Bombyx mori).
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ThoraxThorax
Silkworm pro leg
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Abdomen
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Sexual Marking at larval stageSexual Marking at larval stage
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PUPA
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Sexual Marking at Sexual Marking at PupalPupal stagestage
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MothMoth
Female and Male mothsFemale and Male mothsPaired Female Paired Female and Male mothsand Male moths
Female and Male mothsFemale and Male moths
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Female Female mothmoth Egg laying Female mothsEgg laying Female moths
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Sexing at Moth stageSexing at Moth stage
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Acknowledgements
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