Resistance Screening of Groundnut Advanced Breeding Lines against Collar Rot and Stem Rot Pathogens

Forty groundnut advanced breeding lines along with susceptible checks JL-24, J-11 and TMV-2 were used for collar rot (Aspergillus niger) and stem rot (Sclerotium rolfsii) disease screening. Based on the per cent number of plants affected by the collar rot pathogen, the advanced breeding lines were categorized into four groups. The lines present in group I (Resistant) having < 15% incidence, group II (Moderately resistant) having 15.1 to 30%, group III (Susceptible) having 30.1 to 45 % and group IV (Highly susceptible) having > 45% incidence. Similarly among 40 breeding lines only three lines (ICGV86699, ICGV91114 and ICGV 89280) have shown stem rot disease reaction below 3 (up to 25 % plants were symptomatic) and considered to be moderately resistant to stem rot pathogen. The advanced breeding line ICGV99058 has recorded a disease reaction of 5 scale (> 50 % of the plants symptomatic) equal to the susceptible checks which is considered to be highly susceptible to stem rot pathogen.

[1]  J. H. Kamdar,et al.  Variable response of interspecific breeding lines of groundnut to Sclerotium rolfsii infection under field and laboratory conditions , 2014 .

[2]  Erling Larsen,et al.  Post-harvest operations , 2006 .

[3]  S. Sinha,et al.  Role of manuring in control of root-rot of guar (Cyamopsis psoralioides dc.) and wilt of gram (Cicer arietinum L.) caused by sclerotium rolfsii Sacc. , 1970, Mycopathologia et mycologia applicata.

[4]  D. Gorbet,et al.  Registration of 'Florida MDR 98' peanut , 2002 .

[5]  D. Gorbet,et al.  Registration of 'C-99R' peanut , 2002 .

[6]  S. Pande,et al.  Changing scenario of groundnut diseases in Andhra Pradesh, Karnataka, and Tamil Nadu states of India. , 2000 .

[7]  D. Gorbet,et al.  Evaluation of Peanut Genotypes for Resistance to Southern Stem Rot Using an Agar Disk Technique1 , 1998 .

[8]  S. K. Raj,et al.  Biological control of collar rot (Aspergillus niger Van. Teighem) of groundnut. , 1998 .

[9]  T. Brenneman,et al.  Techniques for Inoculation of Peanut with Sclerotium rolfsii in the Greenhouse and Field1 , 1996 .

[10]  L. D. Ploper,et al.  Potential for biological control of early leafspot of peanut using Bacillus cereus and chitin as foliar amendments , 1992 .

[11]  A. Narain,et al.  Wilt of groundnut caused by Sclerotium rolfsii, Fusarium sp. and Aspergillus niger. , 1990 .

[12]  J. C. Wynne,et al.  Field, microplot, and greenhouse evaluations of resistance to Sclerotium rolfsii in peanut , 1987 .

[13]  J. Dalal,et al.  Screening of world collection of groundnut (Arachis hypogaea L.) germplasm for resistance to collar-rot disease caused by Aspergillus niger van Tiegham in Punjab. , 1970 .