Agricultural Research Management Information System

Home
Research Summary
Search
About Us
- ARMIS
- Brochure
Contact Us
Report
User Request
Data Input
Help
- Operation Manual
  - PDF
  - Video
- Program Area & Commodity
We have reached 37600 number of research entries at this moment.

- Logout

Research Detail

Home
Research
Detail

Induction of Resistance of Bion and Amistar to Banana Var. Sabri Against Cercospora Leaf Spot (sigatoka)

I. Hossain*
Professor
Department of Plant Pathology, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh

M. A. Akter
Lecturer
Department of Plant Pathology, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh

M. M. R. Mejan
MS student
Department of Plant Pathology, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh

Abstract/ Executive Summary:

Bion (benzothiadiazole) and Amistar (azoxystrobin) were applied for controlling Cercospora leaf spot of banana variety Sabri in the field laboratory, Department of Plant Pathology, Bangladesh Agricultural University (BAU), Mymensingh by applying different treatments viz. dipping bottom of sucker for 6 hrs. in Bion (0.005%) before transplanting, dipping bottom of sucker for 6 hrs in Bion (0.01%) before transplanting, spraying of Bion @ 0.005% once on leaves after 80 days of transplanting, spraying of Bion @ 0.01% once on leaves after 80 days of transplanting, spraying of Amistar @ 0.05% once on leaves after 80 days of transplanting, spraying of Amistar @ 0.05% only on leaves after 80 and 140 days of transplanting, spraying of Bion @ 0.005%) once on leaves and pseudostem after 80 days of transplanting, spraying of Bion @ 0.01% once on leaves and pseudostem after 80 days of transplanting and Control (without chemical). From these above treatments it is revealed that Bion @ 0.005% and 0.01% (dipping before planting), Bion @ 0.01% (on leaves and pseudostem, 1 spray) and Amistar @ 0.05% (on leaves, 1 spray), Amistar @ 0.05% (on leaves, 2 spray) showed significant performance in reducing number of diseased leaf/ plant, number of diseased sucker/ plant, percent leaf area (cm²) diseased/ sucker and mean spot size (mm2 )/ plant of banana var. Sabri.

Keywords: Banana, Resistance, Leaf spot, Bion, Amistar

Location: In the field laboratory, Department of Plant Pathology, Bangladesh Agricultural University (BAU), Mymensingh

Start Date:

End Date:

Program Area: Pest Management

Commodity: Diseases, Pesticide

Objectives:

Inducing resistance is a new concept in Bangladesh and attempts had been made to use chemicals as resistance inducer to banana. The study was undertaken to evaluate Bion in inducing resistance to banana plant against Cercospora leaf spot (sigatoka).

Methodology:

The experiment was carried out in the field laboratory, Department of Plant Pathology, Bangladesh Agricultural University (BAU), Mymensingh. Sword suckers of banana variety viz. Sabri were collected from Boira union, Sadar upazilla, Mymensingh, Bangladesh. Three weeks before planting, pits of 0.60 m diameter and 0.40 m depth were prepared by digging the soil with spade (Haque 1988). After one week of pit preparation with manures and fertilizers, uniform sized selected rhizomes of banana variety viz. Sabri were planted. The rhizome in a pit was covered by about 10 cm soil and the soil around it was pressed firmly. There were two chemicals namely Bion (benzothiadiazole), an inducer of resistance and Amistar (azoxystrobin), a fungicide used in this experiment. The treatments were:T1 = Dipping bottom of sucker for 6 hrs. in Bion (0.005%) before transplanting, T2 = Dipping bottom of sucker for 6 hrs in Bion (0.01%) before transplanting, T3 = Spraying Bion (0.005%) once only on leaves after 80 days of transplanting, T4 = Spraying Bion (0.01%) once only on leaves after 80 days of transplanting, T5 = Spraying Amistar (0.05%) once only on leaves after 80 days of transplanting, T6 = Spraying Amistar (0.05%) only on leaves after 80 and 140 days of transplanting, T7 = Spraying Bion (0.005%) once on leaves and pseudostem after 80 days of transplanting, T8 = Spraying Bion (0.01%) once on leaves and pseudostem after 80 days of transplanting and T9 = Control (without chemical). Each spray solution was prepared by mixing definite amount of chemicals with tap water and the bottom of suckers carefully treated. In case of single spray, Amistar (0.05%), Bion (0.005% and 0.01%) were sprayed at 80 days after planting. The second spray of Amistar (0.05%) was done at 140 days after planting. The experimental plots were inspected at 15 days interval for the appearance of Cercospora (sigatoka) leaf spot. The data on the following parameters were considered for collection: i). Plant height (cm), ii). Number of leaves per plant, iii) Number of sucker per plant, iv) Healthy and diseased sucker per plant, v) Percent leaf area diseased per sucker, vi) Mean spot size per main plant. The experiment was carried out in Randomized Completely Block Design (RCBD) with three replications. Each replication contains four banana plants.

Source of Information: Bangladesh J. Plant Pathol. Vol. 33, No. 1 & 2, 2017

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

It is concluded that there is ample scope of using Bion (except sucker treatments) as inducer of resistance for controlling Cercospora (sigatoka) leaf spot of banana. Amistar, as fungicide, can successfully be used for controlling Cercospora (sigatoka) leaf spot of banana also in Bangladesh.

Knowledge Management: Journal