SOME PHYSIOLOGICAL AND MORPHOLOGICAL DETERMINANTS OF GRAIN YIELD IN SORGHUM (Sorghum bicolor l. Moench)

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dc.contributor.authorUCHECHUKWU, CHIEZEY
dc.date.accessioned2014-07-04T09:02:16Z
dc.date.available2014-07-04T09:02:16Z
dc.date.issued1981-12
dc.descriptionA thesis submitted to the Faculty Of Agriculture of Ahmadu Bello University in partial fulfillment of the requirements for the degree of Master of Science in Agronomy DEPARTMENT OF AGRONOMY Faculty of Agriculture & Institute for Agricultural Research AHMADU BELLO UNIVERSITY, ZARIA NIGERIA DECEMBER, 1981en_US
dc.description.abstractEleven cultivars of sorghum were grown during the rainy seasons of 1979 and 1980 to determine the influence of morphological and physiological characters on grain yield. Leaf area, effective grain filling period duration and grain number per head were all positively and significantly correlated with grain yield. High yielding cultivars like L.1499 and SK 5912 were characterised by high leaf area, longer grain filling period duration and more grains per head than their lower yielding counterparts. Plant height was negatively correlated with grain yield. Shorter plants like L.1499, SK 5912 and L.75 gave higher grain yield than the taller ones like FFBL, C-7-4 and FD-1. Tillering did not contribute to grain yield. Tillering was found to reduce the number of grains per head in some cultivars. Head length was negatively correlated with grain yield. Cultivars with long head like C-7-4 and FD-1 recorded poor grain yield because of few grains on the head when compared with short headed cultivars like L.1499, SK.5912 and L.75. Grain weight also did not contribute to increased grain yield. Grain weight was negatively correlated with grain number per head thus resulting in reduction of total grain yield. From the resul-s of the experiment, the highest grain yielders - L.1499 and SK.5912 were characterised by high leaf area, longer grain filling period duration and more grains per head. All were short stemmed and short headeden_US
dc.identifier.urihttp://hdl.handle.net/123456789/5038
dc.language.isoenen_US
dc.subjectPHYSIOLOGICAL,en_US
dc.subjectMORPHOLOGICAL,en_US
dc.subjectDETERMINANTS,en_US
dc.subjectGRAIN,en_US
dc.subjectYIELD,en_US
dc.subjectSORGHUM,en_US
dc.subject(Sorghum bicolor l. Moench)en_US
dc.titleSOME PHYSIOLOGICAL AND MORPHOLOGICAL DETERMINANTS OF GRAIN YIELD IN SORGHUM (Sorghum bicolor l. Moench)en_US
dc.typeThesisen_US
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