PRELIMINARY STUDY ON SOME ADULT PLANT RESISTANCE GENES AS SOURCES OF RESISTANCE TO STRIPE RUST DISEASE IN WHEAT (PUCCINIA STRIIFORMIS WESTEND F. SP. TRITICL)

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AFSHARI F.; TORABI M.

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Journal: Seed and Plant Year:2005 | Volume:21 | Issue:2 Page(s): 331-337

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Title

PRELIMINARY STUDY ON SOME ADULT PLANT RESISTANCE GENES AS SOURCES OF RESISTANCE TO STRIPE RUST DISEASE IN WHEAT (PUCCINIA STRIIFORMIS WESTEND F. SP. TRITICL)

Author(s)

AFSHARI F. | TORABI M. | Issue Writer Certificate

Keywords

WHEATQ3

STRIPE RUSTQ3

ADULT PLANT RESISTANCE GENESQ4

Abstract

Stripe rust is the most important disease in most WHEAT growing regions in Iran. In 2002-03 and 2003-04 cropping seasons, 9 lines and cultivars received from ICARDA germplasm, which carry combinations of ADULT PLANT RESISTANCE GENES of yellow rust and leaf rust together with Bolani cultivar as susceptible check were tested in seedling and adult plant stages. In the seedling test, pathotype 134E134A+ was used in the greenhouse condotions. For inoculation, urediniospores were mixed with talcum powder (1:4). After inoculation the seedlings were placed in an incubation room at 10°C and 100% RH for 24 h in the dark. Incubated plants were moved to greenhouse with a temperature of 18°C. Infection types were recorded 14-18 days after inoculation using the scale described by McNeal et al. (1971). Infection types equal or higher than 7 were considered as virulence and infection types less than 7 as avirulent. In the field in Karaj, all 10genotypes were planted in two rows of one-meter length with 30cm distance and were artificially inoculated with race 134E134A+of STRIPE RUST. The susceptible WHEAT cultivar (Bolani) was planted as spreader around the field and between the rows. Field assessments were based on disease severity according to the modified Cobb scale (Peterson et al., 1948)and disease reaction (Roelfs et al., 1992). In the seedling test all genotypes were susceptible. In field, all genotypes were resistant or moderately susceptible except Japateco S and Bolani. Pawon76 with Yr29 gene showed 80MS response. Cultivar Pastor (Yr31 + 3 minor genes) was resistant (JOR). Yr18 gene indifferent line/cultivar showed moderately susceptible response (80MS), but in Opata85 the response of this gene in combination with 3 more minor genes was reduced to 5R. Use of link genes such as Yr18 and Lr34 with combination of other genes to the leaf rust and STRIPE RUST is the best strategy of diseases control. There is the chance to use these resistant genotypes directly or as resistant source for breeding program.

Cites

INHERITANCE OF RESISTANCE TO STRIPE RUST (PUCCINIA STRIIFORMIS F. SP. TRITICI) IN SOME CULTIVARS AND PROMISING LINES OF WHEAT

References

VIRULENCE GENES OF PUCCINIA RECONDITA F. SP. TRITICI, THE CAUSAL AGENT OF WHEAT LEAF RUST IN SOME REGIONS OF IRAN DURING 1995-1999

Cite

APA: Copy

AFSHARI, F., & TORABI, M.. (2005). PRELIMINARY STUDY ON SOME ADULT PLANT RESISTANCE GENES AS SOURCES OF RESISTANCE TO STRIPE RUST DISEASE IN WHEAT (PUCCINIA STRIIFORMIS WESTEND F. SP. TRITICL). SEED AND PLANT, 21(2), 331-337. SID. https://sid.ir/paper/20295/en

Vancouver: Copy

AFSHARI F., TORABI M.. PRELIMINARY STUDY ON SOME ADULT PLANT RESISTANCE GENES AS SOURCES OF RESISTANCE TO STRIPE RUST DISEASE IN WHEAT (PUCCINIA STRIIFORMIS WESTEND F. SP. TRITICL). SEED AND PLANT[Internet]. 2005;21(2):331-337. Available from: https://sid.ir/paper/20295/en

IEEE: Copy

F. AFSHARI, and M. TORABI, “PRELIMINARY STUDY ON SOME ADULT PLANT RESISTANCE GENES AS SOURCES OF RESISTANCE TO STRIPE RUST DISEASE IN WHEAT (PUCCINIA STRIIFORMIS WESTEND F. SP. TRITICL),” SEED AND PLANT, vol. 21, no. 2, pp. 331–337, 2005, [Online]. Available: https://sid.ir/paper/20295/en

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