ISSN : 0975-3710
EISSN : 0975-9107
NIKETA YADAV1*, S.S. DHANDA2, R.S. KANWAR3, SATBEER SINGH4
1CCS Haryana Agricultural University, Hisar, 125004, Haryana, India
2CCS Haryana Agricultural University, Hisar, 125004, Haryana, India
3CCS Haryana Agricultural University, Hisar, 125004, Haryana, India
4ICRISAT - International Crops Research Institute for the Semi-Arid Tropics, Hyderabad, Telangana, India
* Corresponding Author : y.niketa@gmail.com
Received : 17-10-2016 Accepted : 04-11-2016 Published : 18-11-2016
Volume : 8 Issue : 56 Pages : 3047 - 3049
Int J Agr Sci 8.56 (2016):3047-3049
Keywords : Inheritance, Resistance, Cereal cyst nematode, Bread wheat, Gene
Academic Editor : Soorni Jahad
Conflict of Interest : None declared
Acknowledgements/Funding : None declared
Author Contribution : Conceived and designed the experiments: NY, SSD, and RSK. Analyzed and interpret the data: NY and SS. Wrote the paper: NY and SS. Critical Revised: SSD, RSK.
The cereal cyst nematode (Heterodera avenae Woll.) causal organism of ‘molya disease’ is considered to be key nematode pest in India. Therefore, the present investigation was undertaken to study the inheritance of resistance for H. avenae in the F1, F2, and backcross progenies of the parents P12210 (Susceptible) × Raj MR-1 (Resistant) and P12231 (Susceptible)× Raj MR-1 (Resistant). The F1 plants of all the crosses were susceptible to H. avenae indicating that susceptibility was dominant over resistance for this disease. A 3:1 ratio of resistant to susceptible progenies in the F2 generation, indicating the monogenic recessive inheritance of resistance for H. avenae. Test cross (F1 × recessive parent) progeny was segregated in the ratio of 1 susceptible: 1 resistant. The back cross of F1 plants with susceptible parents gave all susceptible progeny. These results also confirmed the monogenic recessive nature of the inheritance. Therefore, the results of our study indicated that resistance is controlled by a single recessive gene. This information may be helpful in selection and breeding of susceptible cultivars of wheat for resistance to H. avenae.