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Inheritance of resistance to Peronosclerospora sorghi (Weston & Uppal) C.G. Shaw of sorghum (Sorghum bicolor (L.) Moench)






Summa Phytopathologica 12(3-4): 137-151

Inheritance of resistance to Peronosclerospora sorghi (Weston & Uppal) C.G. Shaw of sorghum (Sorghum bicolor (L.) Moench)

Inheritance of resistance was studied by evaluating local lesions on the inoculated 2nd leaf in 13 lines and 1 cultivar, their F1, F2 and backcrosses. The resistant lines OKY 55, WDY 18, Tx 623, Tx 624 and Tx 430 and Brandes had at least 1 major resistance gene, Tx 430 having at least 2 dominant or partially dominant resistance genes, depending on the genetic background. The resistance genes were not identical in all cases.


Accession: 001619279



Related references

Gimenes-Fernandes, N.; Pena, A.M., 1986: Inheritance of resistance to peronosclerospora sorghi weston and uppal c. g. shaw in sorghum sorghum bicolor l. moench. The inheritance of the resistance to sorghum downy mildew was studied through the evaluation of local lesions caused in the 2nd leaf of 13 sorghum lines and one variety, their F1 hybrids, F2 progenies and backcrossings artificially inoculated with...

Singburaudom, N.; Renfro, B.L., 1982: Heritability of resistance in maize to sorghum downy mildew (Peronosclerospora sorghi (Weston & Uppal) C.G. Shaw). Diallel crosses involving 10 inbred lines showed that inheritance of susceptibility is generally dominant, though the intermediate levels of resistance in progenies of crosses between CM105 (resistant) and susceptible lines indicated the involveme...

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Lohithaswa, H.C.; Jyothi, K.; Sunil Kumar, K.R.; Puttaramanaik; Hittalmani, S., 2016: Identification and introgression of QTLs implicated in resistance to sorghum downy mildew (Peronosclerospora sorghi (Weston and Uppal) C. G. Shaw) in maize through marker-assisted selection. Sorghum downy mildew caused by Peronosclerospora sorghi is a major disease of maize and resistance is under the control of polygenes which necessitated identification of quantitative-trait loci (QTLs) for initiating marker-assisted introgression o...

Bhat, M.G., 1985: Studies on the inheritance of resistance to downy mildew (Peronosclerospora sorghi) (Western and Uppal) Shaw in sorghum. Artificial inoculation tests of crosses involving the resistant varieties UChV2 (tan) and QL3 (purple) and susceptible SPV3 (tan) and CSV2 indicated that resistance is controlled by the basic gene Pea, the complementary genes Peb, Pec and Ped and...

Silapapun, A., 1980: Comparison of mass selection and S1 selection for improving resistance to sorghum downy mildew Peronosclerospora sorghi (Weston & Uppal) C. G. Shaw) in corn (Zea mays L.). S1 selection was the most effective selection method for reduction of susceptibility to P. sorghi [Sclerospora sorghi] in one base population and six derived populations. Gains per cycle for the first and second cycle of S1 progeny selection were...

Craig J.; Schertz K.F., 1985: Inheritance of resistance in sorghum sorghum bicolor to three pathotypes of peronosclerospora sorghi. The F1, F2, and F3 generations of the cross of sorghum inbred line SC 414-12 (which is resistant to pathotypes 1, 2, and 3 of P. sorghi) and the universally susceptible sorghum line Tx 412 were used to determine inheritance of resistance to P. sor...

Gimenes Fernandes, N.; Fredericksen, R.A.; Pena, A.M., 1984: Evaluation of resistance to downy mildew (Peronosclerospora sorghi (Weston & Uppal) C.G. Shaw) from local foliar lesions. Sorghum seedlings in the 2nd leaf stage (c. 6 d old) were inoculated with conidia and examined 7 d later for chlorosis symptoms on the 2nd leaf. A positive correlation (R = 0.89) was found between the ratings for these local lesions and percentage...

Narro-Sanchez, J.H.rnandez-Martinez, M1; Vallejo, A., 1982: Pathotypes of downy mildew peronosclerospora sorghi Weston & Uppal C.G.Shaw at El Majio de Michoacan Mexico. Sorghum newsletter5(25): 120-121

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