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Evaluation of Some Wheat Varieties Against Leaf Blight (bipolaris Sorokiniana

Ms. L. Laila
Assistant Professor
College of Development Alternative, Dhaka,

F. M. Aminuzzaman
Assistant Professor
College of Development Alternative, Dhaka,

M. R. Islam
Assistant Professor, Department of Management and Finance
Sher-e-Bangla Agricultural University, Sher-e-Bangla Nagar, Dhaka-1207.

S. J. Rayhan and S. N. Tania
1 Assistant Professor, College of Development Alternative, Dhaka, 2 & 3Professor, Department of Pla

1 Assistant Professor, College of Development Alternative, Dhaka, 2 & 3Professor, Department of Pla

Abstract/ Executive Summary:

A net house experiment was carried out in the field of Sher-e-Bangla Agricultural University, Dhaka, Bangladesh to evaluate ten wheat varieties against leaf blight (Bipolaris sorokiniana). The wheat seeds of varieties Sonalika, Kanchan, Barkat, Shatabdi, Aghrani, Pavon-76, Akbar, Gourab, Sourav and Protiva were collected from Banngladesh Agricultural Research Institute (BARI), Gazipur. At ear initiation stage, flowering stage, milking stage and hard dough stage minimum disease severity was recorded in the variety Shatabdi and maximum in the variety Sonalika. The highest number of grains/ear (36.95) and number of healthy grains/ear (36.43) were recorded in the variety Shatabdi The highest 1000-seed weight (43.10g) were recorded in the variety Gourab and lowest in the variety Protiva. The highest grain yield/pot (5.97g) was recorded in the variety Gourab and lowest yield/pot (4.40g) in the variety Pavon-76. The highest straw yield /pot (14.13g) was recorded in the variety Barkat and lowest (9.10g) in the variety ShatabdiA net house experiment was carried out in the field of Sher-e-Bangla Agricultural University, Dhaka, Bangladesh to evaluate ten wheat varieties against leaf blight (Bipolaris sorokiniana). The wheat seeds of varieties Sonalika, Kanchan, Barkat, Shatabdi, Aghrani, Pavon-76, Akbar, Gourab, Sourav and Protiva were collected from Banngladesh Agricultural Research Institute (BARI), Gazipur. At ear initiation stage, flowering stage, milking stage and hard dough stage minimum disease severity was recorded in the variety Shatabdi and maximum in the variety Sonalika. The highest number of grains/ear (36.95) and number of healthy grains/ear (36.43) were recorded in the variety Shatabdi The highest 1000-seed weight (43.10g) were recorded in the variety Gourab and lowest in the variety Protiva. The highest grain yield/pot (5.97g) was recorded in the variety Gourab and lowest yield/pot (4.40g) in the variety Pavon-76. The highest straw yield /pot (14.13g) was recorded in the variety Barkat and lowest (9.10g) in the variety Shatabdi.

Keywords: Leaf blight, Bipolaris sorokiniana, Varietal reaction, Wheat

Location: Sher-e-Bangla Agricultural University.

Start Date:

End Date:

Program Area: Socio-economic and Policy

Commodity: Wheat

Objectives:

To evaluate 10 wheat varieties against leaf blight (Bipolaris sorokiniana).

Methodology:

The experiment was carried out in the net house of Sher-e-Bangla Agricultural University. After drying and cleaning the soil, decomposed cowdung was mixed with collected soil (1:1) and earthen pots of 30 cm diameter were filled two third portions with the mixture. Chemical fertilizers were not used in the pot soil. The wheat seeds were sown in pot in the month of December. Total numbers of 50 seeds were sown in each pot. Germination of seedlings was counted and germination percentage was calculated at 7 DAS, 14 DAS and 21 DAS. Finally three seedlings per pot were allowed to grow for subsequent data recording on leaf blight severity and yield attributes. The data were recorded for disease reaction in four growth stages of the plant namely panicle initiation stage, flowering stage, milking stage and hard dough stage. Plants for each pot were selected for collection of data on percent Leaf area diseased (% LAD). LAD of flag leaf, second leaf (2nd from the top) and 3rd leaf (3rd from the top) were counted. The grading of the leaves were done following 0-5 rating scale as used by Hossain and Azad (1992) and the method of CIMMYT (Gilchrist, 1984).

Source of Information: J. Sher-e-Bangla Agric. Univ., 7(2): 1-6, July 2013 ISSN 1997-6038

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The findings of the present study corroborate with the findings of Shahidullah (2006). He obtained highest grain yield (531.9 g/plot) in the variety Shatabdi among the 14 wheat varieties tested. Throughout the world massive researches are being done to screen Bipolaris leaf blight resistant varieties, but little success has been obtained (Fader et al., 1989; Sinha et al., 1991).

Knowledge Management: Journal