Seed Quality Improvement in Okra through Specific Gravity Separation

A study was conducted to assess the efficiency of specific gravity separator in removing partially filled/chaffy seeds of okra during 2007 and 2008. Bulk seed, after extraction, was first subjected to an air screen cleaner with three screens. Then, the good seed fraction obtained was subjected to s...

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Main Authors: H S Yogeesha, B L Kashinath, K Bhanuprakash, L B Naik
Format: Article
Language:English
Published: Society for Promotion of Horticulture - Indian Institute of Horticultural Research 2013-06-01
Series:Journal of Horticultural Sciences
Subjects:
Online Access:https://jhs.iihr.res.in/index.php/jhs/article/view/340
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author H S Yogeesha
B L Kashinath
K Bhanuprakash
L B Naik
author_facet H S Yogeesha
B L Kashinath
K Bhanuprakash
L B Naik
author_sort H S Yogeesha
collection DOAJ
description A study was conducted to assess the efficiency of specific gravity separator in removing partially filled/chaffy seeds of okra during 2007 and 2008. Bulk seed, after extraction, was first subjected to an air screen cleaner with three screens. Then, the good seed fraction obtained was subjected to specific gravity separation. Three fractions were obtained, viz., heavy, medium and light and they were assessed for quality, along with ungraded seed. Test weight, germination percentage, first count, seedling vigour indices I&II and field emergence were significantly higher in the heavy seed fraction than in ungraded seed. Black seed content in heavy seed fraction was significantly low, thereby improving seed quality. Rejection percentage in terms of light and medium seed fractions put together was 3.5% and 12% in 2007 and 2008, respectively. By removal of these fractions, percentage of field emergence improved from 63% to 82% in 2007, and 62.8 to 76.4% in 2008, respectively.
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spelling doaj.art-e0915b76d9b84e32b75201db092eed5a2023-08-20T14:01:11ZengSociety for Promotion of Horticulture - Indian Institute of Horticultural ResearchJournal of Horticultural Sciences0973-354X2582-48992013-06-018110.24154/jhs.v8i1.340330Seed Quality Improvement in Okra through Specific Gravity SeparationH S YogeeshaB L KashinathK BhanuprakashL B Naik A study was conducted to assess the efficiency of specific gravity separator in removing partially filled/chaffy seeds of okra during 2007 and 2008. Bulk seed, after extraction, was first subjected to an air screen cleaner with three screens. Then, the good seed fraction obtained was subjected to specific gravity separation. Three fractions were obtained, viz., heavy, medium and light and they were assessed for quality, along with ungraded seed. Test weight, germination percentage, first count, seedling vigour indices I&II and field emergence were significantly higher in the heavy seed fraction than in ungraded seed. Black seed content in heavy seed fraction was significantly low, thereby improving seed quality. Rejection percentage in terms of light and medium seed fractions put together was 3.5% and 12% in 2007 and 2008, respectively. By removal of these fractions, percentage of field emergence improved from 63% to 82% in 2007, and 62.8 to 76.4% in 2008, respectively. https://jhs.iihr.res.in/index.php/jhs/article/view/340OkraSpecific Gravity SeparationSeed QualityBlack Seed
spellingShingle H S Yogeesha
B L Kashinath
K Bhanuprakash
L B Naik
Seed Quality Improvement in Okra through Specific Gravity Separation
Journal of Horticultural Sciences
Okra
Specific Gravity Separation
Seed Quality
Black Seed
title Seed Quality Improvement in Okra through Specific Gravity Separation
title_full Seed Quality Improvement in Okra through Specific Gravity Separation
title_fullStr Seed Quality Improvement in Okra through Specific Gravity Separation
title_full_unstemmed Seed Quality Improvement in Okra through Specific Gravity Separation
title_short Seed Quality Improvement in Okra through Specific Gravity Separation
title_sort seed quality improvement in okra through specific gravity separation
topic Okra
Specific Gravity Separation
Seed Quality
Black Seed
url https://jhs.iihr.res.in/index.php/jhs/article/view/340
work_keys_str_mv AT hsyogeesha seedqualityimprovementinokrathroughspecificgravityseparation
AT blkashinath seedqualityimprovementinokrathroughspecificgravityseparation
AT kbhanuprakash seedqualityimprovementinokrathroughspecificgravityseparation
AT lbnaik seedqualityimprovementinokrathroughspecificgravityseparation