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Varietal Resistance in Rice to Brown Planthopper, Nilaparvate Lugens Stal.

Dr. Mst. Nazema Begum
P.S.O.
Entomology division, BINA, Mymensingh-2201

Md. Lutfar Rahman Mollah
Scientific Officer
Entomology division BINA, Mymensingh

Abstract/ Executive Summary:

Significant differences were observed in the quantity of honeydew excreted by individual females over 24 h of feeding on the rice mutants/varieties. The excretion of honeydew was significantly less on the resistant variety, t27a and the mutants Atomita, Cilosari, Y1281 (Q31-02-2) and their mother variety Cisadane, Q31 Acc. 9338, the mutants BINA 250-24 and Binadhan-6. Binasail, Binadhan 5 and the mutants 250-83 and IR5 had also significantly lower honeydew excretion as a result of feeding compared to susceptible TN1. On the other hand, the mutants Kashmir Basmati and DM25 and their mother variety Basmati 370 were at par with the susceptible TN1.

Keywords: Entomology, Varital resistance, Brown palnthopper

Location: BINA Head Quarter

Start Date:

End Date: 30-06-2001

Program Area: Variety and Species

Commodity: Rice

Objectives:

The objective of this study is to identify and develop high yielding rice varieties resistance to brown plant hopper.

Methodology:

Nineteen mutants/varieties of rice were tested along with a resistant check, t2tA and susceptible check, TNI on the feeding, oviposition and settling responses of brown plant hopper (plate 1) . Feeding responses to BPH was studied in tow ways i.e. , honeydew test by parafilm sachet technique and percent weight change of the brachypterous females. The experiment was set up in a completely randomized design having six replications. Data on orientation and settling of nuymphs were collected at 4, 24, 48 72 h after release. Data were analyzed statistically.

Source of Information:

Article Link (Online Journal):

Funding Source:

1.	Budget: 200000

Total Budget (Tk.) : 200000

Achievement/Findings:

The excretion of honeydew was significantly less on the resistant variety, t27a and the mutants Atomita, Cilosari, Y1281 (Q31-02-2) and their mother variety Cisadane, Q31 Acc. 9338, the mutants BINA 250-24 and Binadhan-6.

Knowledge Management: Journal, Report/Proceedings