SCREENING OF DOWNY MILDEW Sclerospora graminicola (Sacc.) INFECTION AND RATING OF PEARL MILLET[Pennisetumglaucum(L.) R.Br.] VARIETIES (Maiwa and Gero) AND THEIR HYBRIDS

M H ATI, G Y JAMALA

Abstract


Ten varieties of pearl millet were tried for two growing seasons to assess their response to downy mildew. In the first year the pearl millets were evaluated using infector row system. The infector rows were made of bulk of local varieties which were inoculated with downy mildew inoculum. The indicator rows were Jirani variety of pearl millet which is very susceptible to Downy Mildew disease. In the second year, the infector rows were not inoculated with downy mildew inoculum. The Maiwa varieties that were found to be resistant to downy mildew infection were selected and crossed with Gero varieties that showed some level of susceptibility to downy mildew infection were crossed during the off season in a screen house. Thirty genotypes were evaluated for downy mildew infection. The twenty hybrids generated were evaluated along with their parents on downy mildew infested plot with the aim of testing their resistance and susceptibilities. Two female parents were highly resistant, 12 hybrids were highly resistant, 6 genotypes were resistant and 5 were moderately resistant


Full Text:

PDF

References


Arun Kumar, V.K. Manga, H.N. Gour and A.K. Purohit, 2012. Pearl millet downy mildew:challenges

and prospects. Rev. Plant Pathol. 5(2012), 139-177.

Arya HC and Kumar A., 1976. Diseases of bajra- A serious problem of Rajasthan deserteconomy.

Transactions of Indian Society of Desert Technology & University Center of Desert Studies 1: 177-182.

Ati H. M.; D. A.Aba, M. F.Ishiyaku and M. D.Katung, (2013).Screenhouse Evaluation of Pearl

MilletGenotypes for Downy Mildew Incidence. Australian Journal of Basic and Applied Sciences, 7(6), 582-588

Ati H. M.; D. A. Aba, M. F.Ishiyaku and M. D.Katung, 2015.Field Evaluation of Some Pearl Millet

Genotypes for Downy Mildew (Sclerospora graminicola) Resistance and Yield.IOSRJournal of Agriculture and Veterinary Science (IOSR-JAVS)8 (6), 01-06

Ball, S.L.1983. Pathogenic variability of downy mildew (Sclerosporagraminicola) on pearl millet. I

Host cultivar reactions to different pathogen isolates.Ann. Applied Biology 1(2),257–264.

Comstock, R.E., and H.F. Robinson, 1948. The components of genetic variancein populations of

biparental progenies and their use in estimating the average degree of dominance. Biometrics 4:254-266

FAO (1995). FAO year book production.FAO publication (statistical series).Rome, Italy. Pp30

Hallauer, A.R., and J.B. Miranda, 1981. Quantitative genetics in maize breeding. 2nded. Iowa State

Univ. Press, Ames, IA.

Nene Y.L. and S.D.Singh, 1976. Downy mildew and ergot of pearl millet. PANS 22: 366-385.

O'Kennedy M.M., G. Smith and F. C.Botha, 2004. Improvedregeneration efficiency of apearlmillet

(Pennisetumglaucum [L.] R.Br.) breedingline. South African Journal ofBotany, 70: 502-508

Okonkwo, J. and Vanderlip, R. L.(1980). Effect of crop management on seed quality,

subsequent seedling establishment and grain yield of pearl millet. In: 3rd Annual Report on Improvement of pearl millet Manhattan, Kansas AID/TAC 1458. Pp 931-1040.

Rachie K. O. and J. V.Majmudar, 1980. Pearl millet. University Park, Pennsylvania, USA,Pennsylvania

State University Press. pp. 307.

Santosh K.Pattanashetti, Hari D. Upadhyaya, Sangam Lai Dwivedi, Mani Vetriventhan, Kothapally

Narsimha Reddy (2016). Pearl millet. Genetic and Genomic Resources for Grain Cereals Improvement. Science Direct. Pp253-289


Refbacks

  • There are currently no refbacks.