Radiosensitivity test on two varieties of Terengganu and Arab used in mutation breeding of roselle (Hibiscus sabdariffa L.)

Radiosensitivity test on two varieties of Terengganu and Arab used in mutation breeding of roselle (Hibiscus sabdariffa L.)

A study was carried out in a greenhouse to determine the effective doses for mutation breeding of roselle during the year 2006/2007. Seedling height was the parameter recorded at 2, 3, 4 and 5 weeks after sowing of M1 seeds of 2 varieties Terengganu and Arab. The results indicated that increasing do...

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Main Authors: S.S, Harding, Osman, Mohamad
Format: Article
Language:English
Published: Academic Journals 2009
Subjects:
S Agriculture (General)
Online Access:http://irep.iium.edu.my/12689/
http://irep.iium.edu.my/12689/
http://irep.iium.edu.my/12689/1/Harding%2520and%2520Mohamad.pdf
id iium-12689
recordtype eprints
spelling iium-126892012-01-26T02:39:21Z http://irep.iium.edu.my/12689/ Radiosensitivity test on two varieties of Terengganu and Arab used in mutation breeding of roselle (Hibiscus sabdariffa L.) S.S, Harding Osman, Mohamad S Agriculture (General) A study was carried out in a greenhouse to determine the effective doses for mutation breeding of roselle during the year 2006/2007. Seedling height was the parameter recorded at 2, 3, 4 and 5 weeks after sowing of M1 seeds of 2 varieties Terengganu and Arab. The results indicated that increasing doses of gamma irradiation from 0 to 1200 Gy in steps of 100 Grey (Gy) caused increasing physiological effect on seedling height. There was a progressive increase in seedling height from 2 until 5 weeks after sowing. However, at week 2 and 3 after sowing there was no significant difference between seedling heights. The LD50 values determined from regression analyses for Terengganu based on seedling height were 754, 821.4, 761.7 and 766.7% at 2, 3, 4 and 5 weeks after sowing, respectively and the LD50 values for Arab were 773.8.%, 804.1.%, 704.2 and 708.3% at 2, 3, 4 and 5 weeks, respectively. 2 weeks after sowing appears to be the most appropriate time for data collection. The LD50 values at 2 weeks were not significantly different from 3, 4 and 5 weeks after sowing. The LD50 values for Terengganu and Arab determined at 2 weeks were 754 and 773.8%, respectively. Academic Journals 2009-08 Article PeerReviewed application/pdf en http://irep.iium.edu.my/12689/1/Harding%2520and%2520Mohamad.pdf S.S, Harding and Osman, Mohamad (2009) Radiosensitivity test on two varieties of Terengganu and Arab used in mutation breeding of roselle (Hibiscus sabdariffa L.). African Journal of Plant Science, 3 (8). pp. 181-183. ISSN 1996-0824 http://academicjournals.org/AJPS/PDF/Pdf2009/Aug/Harding%20and%20Mohamad.pdf
repository_type Digital Repository
institution_category Local University
institution International Islamic University Malaysia
building IIUM Repository
collection Online Access
language English
topic S Agriculture (General)
spellingShingle S Agriculture (General)
S.S, Harding
Osman, Mohamad
Radiosensitivity test on two varieties of Terengganu and Arab used in mutation breeding of roselle (Hibiscus sabdariffa L.)
description A study was carried out in a greenhouse to determine the effective doses for mutation breeding of roselle during the year 2006/2007. Seedling height was the parameter recorded at 2, 3, 4 and 5 weeks after sowing of M1 seeds of 2 varieties Terengganu and Arab. The results indicated that increasing doses of gamma irradiation from 0 to 1200 Gy in steps of 100 Grey (Gy) caused increasing physiological effect on seedling height. There was a progressive increase in seedling height from 2 until 5 weeks after sowing. However, at week 2 and 3 after sowing there was no significant difference between seedling heights. The LD50 values determined from regression analyses for Terengganu based on seedling height were 754, 821.4, 761.7 and 766.7% at 2, 3, 4 and 5 weeks after sowing, respectively and the LD50 values for Arab were 773.8.%, 804.1.%, 704.2 and 708.3% at 2, 3, 4 and 5 weeks, respectively. 2 weeks after sowing appears to be the most appropriate time for data collection. The LD50 values at 2 weeks were not significantly different from 3, 4 and 5 weeks after sowing. The LD50 values for Terengganu and Arab determined at 2 weeks were 754 and 773.8%, respectively.
format Article
author S.S, Harding
Osman, Mohamad
author_facet S.S, Harding
Osman, Mohamad
author_sort S.S, Harding
title Radiosensitivity test on two varieties of Terengganu and Arab used in mutation breeding of roselle (Hibiscus sabdariffa L.)
title_short Radiosensitivity test on two varieties of Terengganu and Arab used in mutation breeding of roselle (Hibiscus sabdariffa L.)
title_full Radiosensitivity test on two varieties of Terengganu and Arab used in mutation breeding of roselle (Hibiscus sabdariffa L.)
title_fullStr Radiosensitivity test on two varieties of Terengganu and Arab used in mutation breeding of roselle (Hibiscus sabdariffa L.)
title_full_unstemmed Radiosensitivity test on two varieties of Terengganu and Arab used in mutation breeding of roselle (Hibiscus sabdariffa L.)
title_sort radiosensitivity test on two varieties of terengganu and arab used in mutation breeding of roselle (hibiscus sabdariffa l.)
publisher Academic Journals
publishDate 2009
url http://irep.iium.edu.my/12689/
http://irep.iium.edu.my/12689/
http://irep.iium.edu.my/12689/1/Harding%2520and%2520Mohamad.pdf
first_indexed 2023-09-18T20:21:50Z
last_indexed 2023-09-18T20:21:50Z
_version_ 1777408158167203840

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