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

Storage of Seedlings for Transplant Aman Rice

A.R. Gomosta
Bangladesh Rice Research Institute, Gazipur-1701, Bangladesh

H.A. Quayyum
Bangladesh Rice Research Institute, Gazipur-1701, Bangladesh

A. H. Molla
Bangladesh Rice Research Institute, Gazipur-1701, Bangladesh

M.Z, Haque
Bangladesh Rice Research Institute, Gazipur-1701, Bangladesh

Abstract/ Executive Summary:

Seedling storage materials and methods was tested as a contingency means of preserving seedlings for transplant Aman rice after the recession of flood water in flood-prone areas. Twenty and 40 d old seedlings of BR11 were stored in mud and in water. The seedlings were transplanted after 1 to 4 weeks of storage. Seedling survival after transplanting was 85% irrespective of age when stored in mud. In case of storage in water, seedling survival decreased with the increase in storage period and grain yield decreased to zero when the seedlings were stored for 3 to 4 weeks. Yield of 3-4 t/ha was obtained with 40 d old seedlings stored for 1 week. With seedlings stored in mud, yield varied from 2.8 to 3.5 t/ha among the storage period treatments. The results indicated that 20 to 40 d old seedlings stored in mud for 4 weeks and 40 d day old seedlings stored in water for 1 week would be appropriate for transplant aman after the recession of flood water to achieve reasonable yield.

Keywords: Rice, Seedling, Storage, T Aman

Location: BRRI, Gazipur

Start Date:

End Date:

Program Area: Crop-Soil-Water Management

Non-commodity: Performance

Objectives:

To observe the growth and determine the yielding ability of 20 and 40 d old seedlings stored in mud or in water for different durations after uprooting.

Methodology:

Sprouted seeds of BR11 were sown in a 10m x 1 m seedbed fertilized with N-P205-K20 at the rates of 20-20-20 kg/ha. The seedbed was irrigated continuously during the seedling growing period. Ten dafter seeding, Furadan at the rate of 3 kg a.i.lha was applied. The seedlings were grown for 20 or 40 d in the seedbed and then uprooted. After uprooting, the seedlings were tied into bundles and kept upright either in mud or in water. In the mud, there was little water submerging the bottoms of the seedling bundles, while in water, the bundles remained floating. Seedling were thus stored 1 to 4 weeks. Seedlings taken from inside of a bundle were used for transplanting in the field at the rate of 3-4 seedlings/hill and at a spacing of 20 x 15cm. The soil was fertilized with N-P205-K2O-S at the rate of 60- 60-40-20 kg/ha respectively. All P,K,S and 20 kg N were applied before transplanting. The remaining N was top dressed in two equal splits - at 15 d after transplanting (DT) and at panicle initiation stage. Separate experiments were conducted with the mud and water storage methods. For each storage condition, the. storage durations were assigned to plots in a randomized complete block design. The unit plot size was 4 x 4m. Each treatment was replicated 3 times. The following data were collected. (i) Seedling growth : Before transplanting, 20 seedlings from different bundles taken at random were dried in the oven at 80°C for 3 d and then weighed. The length between the base and tip of the longest leaf was measured as seedling height. (ii) Seedling survival: Number of seedlings that survived after transplanting were counted at 40 DT. (iii) Flowering date: The date of flowering was visually recorded when 50% of the panicles flowered. (iv) Grain yield: The whole plots were harvested at crop maturity and the grain weights recorded. From these grain weights, grain yield per ha were computed.

Source of Information: Bangladesh Rice J. 1(1): 55-63 (1990)

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

From this study it can he concluded that 20 to 40 d old seedlings stored in mud for 4 weeks and 40 d old seedling stored in water for 1 week may be used for transplanting after the recession of flood water. Reasonable yield of post-flood transplant Aman rice may be achieved with such seedlings storage practices.

Knowledge Management: Journal