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

Character Association and Path Co-efficient Analysis in Wheat (triticum Aestivum L.)

M. F. Amin
Scientific Officer,
Regional Wheat Research Centre (RWRC), Bangladesh Agricultural Research Institute (BARI), Gazipur

M. Hasan
Associate Professor
Department of Genetics and Plant Breeding, Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Salna, Gazipur, Bangladesh

N. C. D. Barma
Chief Scientific Officer
Regional Wheat Research Centre (RWRC), Bangladesh Agricultural Research Institute (BARI), Gazipur

M. A. Rahman
Principle Scientific Officer
Regional Wheat Research Centre (RWRC), Bangladesh Agricultural Research Institute (BARI), Gazipur

M. M. Rahman
Senior Scientific Officer
Regional Wheat Research Centre (RWRC), Bangladesh Agricultural Research Institute (BARI), Gazipur

Abstract/ Executive Summary:

The experiment was carried out with 50 wheat lines to study their mean, range, cv (%), correlation co- efficient, and path co- efficient considering 14 different morphological characters at the experimental field of Regional Wheat Research Centre (RWRC), Bangladesh Agricultural Research Institute (BARI), Gazipur during December 2010 to April 2011. Significant variation was observed among the genotypes for all characters studied. In general, genotypic correlations were higher than the phenotypic correlations. It indicates that there was an inherent association among them which was adversely influenced by the environment. The correlation coefficients showed that, seed yield was negatively and significantly correlated with days to heading (DTH), plant height (PHT), days to anthesis (DTA), days to physiological maturity (DPM), and canopy temperature at anthesis stage (CTanth.) but only negatively correlated with canopy temperature at vegetative stage (CTveg.), canopy temperature at grain filling stage (CTgf.), spikelets per spike both genotypically and phenotypically and grain per spike showed genotypically negative correlation. Path analysis showed that plant height (PHT), days to physiological maturity (DPM), canopy temperature at grain filling stage (CTgf.), and thousand grain weight (TGW) influenced seed yield directly in positive direction but days to heading (DTH), days to anthesis (DTA), grain filling duration (GFD), grain filling rate (GFR), Chlorophyll content at anthesis stage (CHLA), canopy temperature at vegetative stage (CTveg.), canopy temperature at anthesis stage (CTanth.), spikelets per spike, and grains per spike had negative direct effect on seed yield. Considering analytical findings of correlation co-efficient, path co-efficient analysis and field performance, the genotypes G 3, G 10, G 11, G 12, G13, G 21, G 29, G 35, G 38, G 40, G 46 and G 48 were found suitable for future breeding programme.

Keywords: Character association, Path co-efficient analysis, Wheat, Genotypes.

Location: At the experimental field of Bangladesh Agricultural Research Institute, Gazipur

Start Date: 00-12-2010

End Date: 00-04-2011

Program Area: Variety and Species

Commodity: Wheat

Objectives:

The present study was undertaken to find out and establish suitable selection criteria for higher yield through study of relationship between yield and yield components in spring wheat.

Methodology:

Fifty wheat genotypes were grown in a randomized complete block design with three replications at the experimental field of Bangladesh Agricultural Research Institute, Gazipur during first week of December 2010 to first week of April 2011. The experimental site was at 23.46 0 N latitude and 90.230 E longitude with an elevation of 8 meter from sea level. The experimental field was prepared thoroughly by ploughing with tractor followed by harrowing and removing the stubbles. The crop was fertilized with NPKS and B @ 100, 28, 40, 20 and 2.5 kg ha^-1 respectively to ensure proper growth and development. The elements N, P, K, S and B were applied in the form of Urea, Triple Super Phosphate, Muriat of Potash, Gypsum and Boric acid respectively. Two-third of urea and the entire quantity of other fertilizers were applied at final land preparation along with Furadon 3G @ 8 kg ha-1 (Anon. 2011). The rest one-third urea was top- dressed at crown root initiation stage (17-21 days after sowing) following first irrigation. Data were collected on days to heading (DTH), days to anthesis (DTA), days to maturity (DTM), grain filling duration (GFD)[(days], grain filling rate (GFR) [g m^-2 d^-1], plant height (PHT) in cm, chlorophyll content at anthesis (CHLA) in SPAD unit, canopy temperature (0C) at vegetative (CTveg.), anthesis (CTanth.) and grain filling (CTgf.) stage, spikelets spike^-1 (no.), grains spike^-1 (no.), thousand grain weight (TGW) [g], and grain yield m^-2 (g). Grain yield m^-2 of each genotype was converted into grain yield per hectare (Kg/ha). The data were analyzed for different components. Phenotypic and genotypic variances were estimated by the formula used by Johnson et al. (1955). Phenotypic and genotypic co-efficient of variation were calculated by the formula of Burton (1952). Simple correlation co-efficient was obtained using the formula suggested by Clarke (1973); Singh and Chaudhary (1985). Genotypic and phenotypic correlation co-efficient were calculated following Miller et al. (1958). Path co- efficient analysis was done following the method outlined by Dewey and Lu (1959).

Source of Information: Bangladesh J. Agril. Res. 42(3): 571-588, September 2017 ISSN 0258-7122 (Print), 2408-8293 (Online)

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Considering analytical findings of correlation co- efficient, path co-efficient analysis and field performance, the genotypes G 3, G 10, G 11, G 12, G13, G 21, G 29, G 35, G 38, G 40, G 46 and G 48 were found suitable for future breeding programme.

Knowledge Management: Journal