M. Iqbal Hossain
Scientific Officer
Tuber Crops Research Centre, BARI
K.A. Kader, M.M. Begum and M. Hossain
Scientists
Tuber Crops Research Centre, BARI
An experiment was conducted on the effect of application time of boric acid for the management of comon scab of potato on the progeny tuber of potato at Gazipur during 2010-11. There was no significant effect of treatment on the germinationt. The lowest scabby tuber was found in T2 (Seed treatment at before storage on moderate scabby tuber) (1.52 %) whereas the highest was in T5 (Scabby tuber without seed treatment) (13.72 %). However, T7 (Healthy tuber treated before storage) produced the highest yield (17.31 t/ha) and the lowest (9.81 t/ha) was found in T3 (Seed treatment at after storage on severe scabby tuber). Seed trteatment with boric acid before storage showed higher yield than seed treatment after storage.
Boric acid, Common scab, Potato, Control
Pest Management
To find out the appropriate time of seed treating by boric acid on moderate and severe scabby tuber and healthy tuber on progeny tuber production.
The experiment was conducted at Gazipur during 2010-11. Potato variety Diamant was used in the trial. The unit plot size was 3.0m ´ 1.2m and plant spacing was 60 x 25 cm. Recommended dose of fertilizers (N: P2O5: K2O: S @ 160:100:160:20 Kg/h) were used. Design was RCBD with one factor having three replications. There were two types of severity level of common scab were used as a moderate (1-50%), and asevere (51-100%) infection for infected tubers treatment. The treatments were as follows:
T1 = Seed treatment before storage on severe scabby tuber @ 3.0%
T2 = Seed treatment before storage on moderate scabby tuber @ 3.0%
T3 = Seed treatment after storage on severe scabby tuber @ 1.50%.
T4 = Seed treatment after storage on moderate scabby tuber @ 1.50%.
T5 = Scabby tuber without seed treatment
T6 = Healthy tuber treated after storage @ 1.50%.
T7 = Healthy tuber treated before storage@ 3.0%
The crop was planted on 01.12.2010 and harvested on 09.3.2011. Data on plant emergence, tuber yield and scabby tubers were recorded and analyzed statistically. All percentage data were converted for analysis. Tubers were scored individually for scab occurrence according to the scale (Bakr, M. A. et. al 2010.
Annual Report - 2010-11
10,000/-
Seed treatment with boric acid using mild common scab infected tuber before storage reduced scab disease in their progeny.
Report/Proceedings