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STUDIES ON POLLINATION ECOLOGY, SEED DEVELOPMENT AND SEED QUALITY ENHANCEMENT IN BLACK CUMIN (Nigella Sativa L.)

KrishiKosh

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Title STUDIES ON POLLINATION ECOLOGY, SEED DEVELOPMENT AND SEED QUALITY ENHANCEMENT IN BLACK CUMIN (Nigella Sativa L.)
M Sc
 
Creator KUMARI RAJANI
 
Contributor Surendra Singh Parihar
 
Subject sowing, developmental stages, germinability, nigella sativa, planting, drying, seed treatment, harvesting, fruits, storage
 
Description T-8658
Black cumin (Nigella sativa L.) is a multipurpose rabi crop cultivated for its seeds.
The crop is sown during October-November and harvested during March-April under
North and Central Indian conditions. Flower of Nigella sativa basically shows unique
mechanism to ensure self pollination, although abundant pollinators also visit
flowers. However, the flower of Nigella sativa possess characteristic feature of both
entomophyllus and anemophyllus flowers which makes it ambophyllus in nature
where pollination is done by both biotic and abiotic pollinators in the same flower,
providing some kind of reproductive assurance in the absence of pollinators to
ensure successful reproduction and better seed setting. Our study shows that N.
sativa was able to produce seeds under open condition (plants tagged & un-covered,
T0), under selfing (plants covered by net cloth, T1), and by manual pollination of
emasculated flowers (T2). Under T0, T1, and T2, seed yield of 8.46, 8.10 and 7.83
g/plant was obtained respectively. Seed development and maturation, onset of
germination, desiccation tolerance and period required for seed maturation was also
studied. Onset of germination took place after 35-40 days of pollination, while
acquisition of desiccation tolerance took place 40-45 days after pollination when
seeds reach harvesting maturity.
 
Date 2016-09-17T17:42:02Z
2016-09-17T17:42:02Z
2012
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/77256
 
Format application/pdf
 
Publisher IARI , DIVISION OF SEED SCIENCE AND TECHNOLOGY