REACTIONS OF CERTAIN COMMERCIAL COTTON CULTIVARS TO BACTERIAL BLIGHT, XANTHOMONAS CITRI PV. MALVACEARUM

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GANJALI F.; HASANZADE N.; ARAB SALMANI M.; REZAEE S.

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Journal: JOURNAL OF RESEARCH IN PLANT PATHOLOGY Year:2013 | Volume:2 | Issue:1 Page(s): 61-70

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Title

REACTIONS OF CERTAIN COMMERCIAL COTTON CULTIVARS TO BACTERIAL BLIGHT, XANTHOMONAS CITRI PV. MALVACEARUM

Author(s)

GANJALI F. | HASANZADE N. | ARAB SALMANI M. | REZAEE S. | Issue Writer Certificate

Keywords

COTTONQ3

CULTIVAR REACTIONQ3

XANTHOMONAS CITRI PV. MALVACEARUMQ2

Abstract

Bacterial blight of COTTON caused by XANTHOMONAS CITRI PV. MALVACEARUM is an important quarantine disease in the country. To date, no official report exists on the susceptibility or resistance assessments of different COTTON varieties to the disease in greenhouse conditions. To achieve this aim, disease incidence and severity in the three growth stages of cotyledonary, flowering and boll formation for 8 COTTON varieties under greenhouse conditions (mean T.38.31; d/n and RH% 58.65 d/n.) were evaluated using a completely randomized design with six replicates. Bacterial inoculum was prepared by mixing the inocula of 5 X. citri pv. malvacearum isolates that was adjusted at concentration of 106 cfu/ml. The leaves were pricked with sterile needle and sprayed with bacterial inoculum for three successive days at the flowering stage. Three weeks old bolls were pricked with needle at 2 points and inoculated with COTTON plugs soaked in bacterial suspension. Distilled water was used as control. An in vitro (moist chamber) experiment on COTTON bolls was also carried out in a completely randomized design with six replications. Hunter, 1986 and Hillocks, 1988 evaluation systems were used for leaf and boll susceptibility or resistance assessments respectively. Results indicated that the local cultivar Bomi (G. herbaceum)was the most susceptible among the eight cultivars studied here. In contrast, the three cultivars, Siokra, Syndose and Bakhtegan were considered as the most resistant ones in both (vivo & vitro) experiments. Reactions of the varieties to inoculation at the flowering stage were similar to those at boll formation stage. Mean comparison of the data revealed significant differences among all varieties, except the 3 most resistant ones mentioned above. Inoculation of young plants at seedling stage did not show any disease symptoms.

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APA: Copy

GANJALI, F., HASANZADE, N., ARAB SALMANI, M., & REZAEE, S.. (2013). REACTIONS OF CERTAIN COMMERCIAL COTTON CULTIVARS TO BACTERIAL BLIGHT, XANTHOMONAS CITRI PV. MALVACEARUM. JOURNAL OF RESEARCH IN PLANT PATHOLOGY, 2(1), 61-70. SID. https://sid.ir/paper/233802/en

Vancouver: Copy

GANJALI F., HASANZADE N., ARAB SALMANI M., REZAEE S.. REACTIONS OF CERTAIN COMMERCIAL COTTON CULTIVARS TO BACTERIAL BLIGHT, XANTHOMONAS CITRI PV. MALVACEARUM. JOURNAL OF RESEARCH IN PLANT PATHOLOGY[Internet]. 2013;2(1):61-70. Available from: https://sid.ir/paper/233802/en

IEEE: Copy

F. GANJALI, N. HASANZADE, M. ARAB SALMANI, and S. REZAEE, “REACTIONS OF CERTAIN COMMERCIAL COTTON CULTIVARS TO BACTERIAL BLIGHT, XANTHOMONAS CITRI PV. MALVACEARUM,” JOURNAL OF RESEARCH IN PLANT PATHOLOGY, vol. 2, no. 1, pp. 61–70, 2013, [Online]. Available: https://sid.ir/paper/233802/en

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