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Growth and Yield of Recently Released Wheat Varieties/genotypes Under Raised Bed System

M Ilias Hossain
Wheat Research Centre, BARI

M Israil Hossain
Wheat Research Centre, BARI

N .A. Siddique
Wheat Research Centre, BARI

M A Zaman
Wheat Research Centre, BARI

M J Islam
Wheat Research Centre, BARI

Abstract/ Executive Summary:

The experiment was conducted during Rabi season of 2012-13 and 2013-14 at the Regional Wheat Research Centre (RWRC), Bangladesh Agricultural Research Institute (BARI), Rajshahi. Recently released six varieties were evaluated under raised bed system in randomized complete block design with three replications. The main objectives of this study was to select suitable varieties under bed planting method for biotic and abiotic stress encountered in Wheat based cropping system in Bangladesh. The varieties were evaluated for yield, and yield components with some phenological and physiological parameters. The effects of raised bed system over two years were significant for all the parameters. The highest mean yield over tillage method (among the tested genotypes) was produced by varieties BARI Gom 27 and Shatabdi followed by BARI Gom 26 and Bijoy varieties. These genotypes produced satisfactory yields in raised bed methods. The lowest yielder varieties were Prodip and BARI Gom 25. Considering the overall growth parameters, yield and other characters 3 varieties BARI Gom 27, 26 and Bijoy have been provisionally selected at RWRC, Rajshahi .

Keywords: Raised bed, Phenological, Planting system, Wheat

Location: Rajshahi

Start Date: 00-00-2013

End Date: 00-00-2014

Program Area: Variety and Species

Commodity: Wheat

Objectives:

To select the best genotype (s) under raised bed system.

2. To determine the growth parameters of wheat genotypes under bed planting system

Methodology:

The trial was conducted with recently released six wheat varieties at the Regional Wheat Research Centre, BARI, Rajshahi in 2012-13 and 2013-14. The experiment was laid out in randomized complete block design with three replications. Seeds were sown by bed planter with 25 meter long x 2.4 m wide with 8 rows for six varieties namely Shatabdi, Prodip, Bijoy, BARI Gom 25, 26 and 27. Recommended management practices were followed to raise the crop with irrigation and other practices. Data were recorded on different agronomic parameters as well as phenological and physiological characteristics. At maturity, four rows with 2 m long plot size were harvested to estimate grain yield expressed as ton per hectare. The collected data were analyzed with Crop Stat Model and means were compared by same model.

Source of Information: Annual Research Report, Wheat Research Centre, BARI--2013-14

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Results revealed that Shatabdi and BARI Gom 27 were 2-3 days delayed over other varieties under raised bed systems. Days to heading, anthesis and physiological maturity were 3-4 days earlier in Prodip, BARI Gom 25 and BARI Gom 26 varieties under raised bed system than Shatabdi, Bijoy and BARI Gom 27 varieties. Finally raised bed systems influenced the crop growth duration and as results Shatabdi, Bijoy and BARI Gom 27 varieties were longer crop duration (111-113 days) compared to Prodip, BARI Gom 25 and BARI Gom 26 (105-107 days). Among the six varieties, Shatabdi took maximum time of booting(65 days), heading (74 days) and anthesis (79 days) followed by BARI Gom 27 and Bijoy and these varieties needed maximum time for maturity( 113 days). The reasons might be due to Shatabdi, Bijoy and BARI Gom 27 were highly sensitive under raised bed systems with get more border effect. Total dry matter increase with increased the duration up to grain filling stage among all the varieties under raised bed systems and then slowly decreased. Maximum dry matter production was higher in Shatabdi, Bijoy and BARI Gom 27 varieties due to its growth duration and gets more border effect and minimum in BARI Gom 25 and Prodip varieties due to its leaf senescence and mutual shading. Leaf area index increase with increased the duration up to booting stage and there after decreased up to late grain filling stage. Maximum leaf area index was found from BARI Gom 27, Shatabdi and Bijoy varieties and minimum was Prodip and BARI Gom 25 and 26 varieties.

On the overall performance both phenological and yield and yield attributes on six varieties, it was observed that Shatabdi, Bijoy, BARI Gom 26 and 27 were best performance under raised bed condition. On the other hand, Prodip and BARI Gom 25 were less performance under raised bed system. So, on the basis of two years results, it was concluded that BARI Gom 26, 27, Bijoy and still Shatabdi were best under bed planting system.

Knowledge Management: Report/Proceedings