EFFECTS OF GAMMA RADIATION AND COLCHICINE ON AGRONOMIC PERFORMANCE OF SOY-BEAN [GLYCINE MAX (L.) MERRILL] VARIETIES

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dc.contributor.authorSADIQ, SHEHU ABDULLAHI
dc.date.accessioned2016-03-22T13:43:31Z
dc.date.available2016-03-22T13:43:31Z
dc.date.issued2015-09
dc.descriptionA THESIS SUBMITTED TO THE SCHOOL OF POSTGRADUATE STUDIES, AHMADU BELLO UNIVERSITY, ZARIA, IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE AWARD OF MASTER OF SCIENCE DEGREE IN BOTANY DEPARTMENT OF BIOLOGICAL SCIENCES, FACULTY OF SCIENCE, AHMADU BELLO UNIVERSITY, ZARIA NIGERIA. SEPTEMBER,en_US
dc.description.abstractA pot experiments was conducted to determine the effects of gamma radiation and colchicine on Agronomic performance of soybean varieties. The seeds of two varieties of Soybean (TGX 1448-2E and SAMSOY-2) were subjected to five treatments (0, 5, 10, 15, and 20 Krad) of gamma rays and five colchicine concentrations (0, 0.5, 1.0, 1.5 and 2.0 mM). Combinations of these two mutagens were also used to treat the two soybean varieties. The treatments were laid out in a complete randomized design. The plants were sampled for germination percentage two weeks after planting (2 WAP), plant survival (3 and 6 WAP), plant height (3 and 6 WAP), root nodule (6 WAP), leave number (6 WAP), root fresh weight (6 WAP), shoot fresh weight (6 WAP), fresh weight (6 WAP) and flower production for the assessment of growth parameters, the plants were also sampled for pod dry weight, 100 seed weight, grain yield and crude protein content at harvest. The results indicated a varying degree of effects in response to the mutagenic treatments. The higher doses of gamma rays (15 Krad and 20 Krad) were particularly lethal. Similarly, there was decrease in percentage germination with increase in colchicine concentrations observed in the treated seeds. The interaction of the two mutagens showed a significant decrease in percentage germination, plant survival, shoot fresh weight, fresh weight and pod dry weight. At higher doses of gamma ray or higher concentrations of colchicine (20 Krad and 2 mM) the results revealed an increase in grain yield, crude protein and 100 seed weight. The data showed that, variety TGX 1448-2E showed higher values in germination percentage, plant survival, plant height, root nodule, leaf number, shoot weight, flower production, total fresh weight, pod weight, 100 seed weight, total grain yield and crude protein content than the other variety. The result was highly significanten_US
dc.identifier.urihttp://hdl.handle.net/123456789/7516
dc.language.isoenen_US
dc.subjectEFFECTS,en_US
dc.subjectGAMMA RADIATION,en_US
dc.subjectCOLCHICINE,en_US
dc.subjectAGRONOMIC PERFORMANCE,en_US
dc.subjectSOY-BEAN,en_US
dc.subjectGLYCINE MAX (L.),en_US
dc.subjectMERRILL,en_US
dc.subjectVARIETIES,en_US
dc.titleEFFECTS OF GAMMA RADIATION AND COLCHICINE ON AGRONOMIC PERFORMANCE OF SOY-BEAN [GLYCINE MAX (L.) MERRILL] VARIETIESen_US
dc.typeThesisen_US
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