Seed dormancy in ornamental plants: A review

Seed is the first input used in transfer of genetic traits in ornamental plants production. Seed dormancy is a physiological phenomenon in plants, which is caused by external or internal factors, and prevents seed germination, even in optimal conditions. Seed dormancy in flower crops impacts both s...

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Main Authors: A K TIWARI, T N TIWARI, S R PRASAD
Format: Article
Language:English
Published: Indian Council of Agricultural Research 2016-05-01
Series:The Indian Journal of Agricultural Sciences
Subjects:
Online Access:https://epubs.icar.org.in/index.php/IJAgS/article/view/58245
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author A K TIWARI
T N TIWARI
S R PRASAD
author_facet A K TIWARI
T N TIWARI
S R PRASAD
author_sort A K TIWARI
collection DOAJ
description Seed is the first input used in transfer of genetic traits in ornamental plants production. Seed dormancy is a physiological phenomenon in plants, which is caused by external or internal factors, and prevents seed germination, even in optimal conditions. Seed dormancy in flower crops impacts both seed production and germination. It can also complicate assessment of seed quality by the seed analyst who requires prompt germination to evaluate a seed lot. Flower crops display diverse mechanisms for seed dormancy like hard seed coat, immature, rudimentary embryo and inhibitors. It can be broken by soil melting and freezing, microorganism’s activity, forest fires, soil activity and being eaten by animals, in normal conditions. This review surveys and categorizes the different seed dormancy conditions found in flowering plants. Flower genera are listed according to dormancy type. Categories of dormancy include primary and secondary dormancy. Within primary dormancy, examples of flower genera can be found that display exogenous, endogenous and combinational dormancy. Secondary dormancy can be an important problem in selected flower seeds. Specific examples are given for each type of dormancy along with methods to alleviate dormancy.
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spelling doaj.art-7f6dc3aea3f04eeb9d5889e92286a73a2023-07-27T07:02:41ZengIndian Council of Agricultural ResearchThe Indian Journal of Agricultural Sciences0019-50222394-33192016-05-0186510.56093/ijas.v86i5.58245Seed dormancy in ornamental plants: A reviewA K TIWARI0T N TIWARI1S R PRASAD2ICAR- Indian Institute of Seed Science, Kushmaur, Maunath Bhanjan, Uttar Pradesh 275 103ICAR- Indian Institute of Seed Science, Kushmaur, Maunath Bhanjan, Uttar Pradesh 275 103ICAR-Indian Institute of Seed Science, Kushmaur, Maunath Bhanjan, Uttar Pradesh 275 103 Seed is the first input used in transfer of genetic traits in ornamental plants production. Seed dormancy is a physiological phenomenon in plants, which is caused by external or internal factors, and prevents seed germination, even in optimal conditions. Seed dormancy in flower crops impacts both seed production and germination. It can also complicate assessment of seed quality by the seed analyst who requires prompt germination to evaluate a seed lot. Flower crops display diverse mechanisms for seed dormancy like hard seed coat, immature, rudimentary embryo and inhibitors. It can be broken by soil melting and freezing, microorganism’s activity, forest fires, soil activity and being eaten by animals, in normal conditions. This review surveys and categorizes the different seed dormancy conditions found in flowering plants. Flower genera are listed according to dormancy type. Categories of dormancy include primary and secondary dormancy. Within primary dormancy, examples of flower genera can be found that display exogenous, endogenous and combinational dormancy. Secondary dormancy can be an important problem in selected flower seeds. Specific examples are given for each type of dormancy along with methods to alleviate dormancy. https://epubs.icar.org.in/index.php/IJAgS/article/view/58245Flowers generaLeachingScarificationSeed dormancy
spellingShingle A K TIWARI
T N TIWARI
S R PRASAD
Seed dormancy in ornamental plants: A review
The Indian Journal of Agricultural Sciences
Flowers genera
Leaching
Scarification
Seed dormancy
title Seed dormancy in ornamental plants: A review
title_full Seed dormancy in ornamental plants: A review
title_fullStr Seed dormancy in ornamental plants: A review
title_full_unstemmed Seed dormancy in ornamental plants: A review
title_short Seed dormancy in ornamental plants: A review
title_sort seed dormancy in ornamental plants a review
topic Flowers genera
Leaching
Scarification
Seed dormancy
url https://epubs.icar.org.in/index.php/IJAgS/article/view/58245
work_keys_str_mv AT aktiwari seeddormancyinornamentalplantsareview
AT tntiwari seeddormancyinornamentalplantsareview
AT srprasad seeddormancyinornamentalplantsareview