INHERITANCE OF BACTERIAL LEAF BLIGHT RESISTANCE IN CLUSTERBEAN
ANIL, S. K. PAHUJA, S. P. KADIAN, S. K. GANDHI AND NABIN BHUSAL*
Forage Section, Department of Genetics and Plant Breeding
CCS Haryana Agricultural University, Hisar-125 004 (Haryana), India
(Received: 11 June, 2013, Accepted: 15July, 2013)
The F2 progenies of two crosses i.e. HG 563 X PNB and HG 75 X PNB in clusterbean were studied for inheritance of Bacterial Leaf Blight disease resistance. Individual data were taken for BLB disease using 0-9 scale. The data were analyzed using chai square test in clusterbean. F2 mendelian segregation ratio 13:3 (Inhibitory gene action) was found non- significant in both the crosses. The presence of inhibitory gene action was for governing resistance to bacterial leaf blight disease in both the crosses which will enable the breeder to exercise intensive selection among segregants with better chances of finding transgressive segregants for F2 population.
Key words: Cluster bean, chai square test, Inhibitory gene action, Transgressive segregants, Bacterial leaf blight.