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Evaluation of Early Growth and Yield of Wheat as Influenced by Seed Invigoration Techniques

M.A. Hasan
Department of Crop Physiology and Ecology, Hajee Mohammad Danesh Science and Technology University, Dinajpur-5200

S. Sikder
Department of Crop Physiology and Ecology, Hajee Mohammad Danesh Science and Technology University, Dinajpur-5200

F. Rahman
Department of Crop Physiology and Ecology, Hajee Mohammad Danesh Science and Technology University, Dinajpur-5200

A.K.M.M.B. Chowdhury
Department of Crop Physiology and Ecology, Hajee Mohammad Danesh Science and Technology University, Dinajpur-5200

M.H.R. Hafiz
Department of Crop Physiology and Ecology, Hajee Mohammad Danesh Science and Technology University, Dinajpur-5200

Abstract/ Executive Summary:

The experiment was conducted to find out the influence of different seed invigoration techniques viz., control, hydropriming for 24h, priming with 2% H₂O₂ solution for 6h, hardening for l2h (one cycle), priming with 2% KCI for l2h, priming with KH₂PO₄ 0.5% for l2h, priming with 20% PEG for 24h, priming with 1.6% NaCI for 12h and priming with 2.2% CaCI₂ for 12h to improve early dry matter accumulation in seedling and yield of two wheat varieties (Shatabdi and Bijoy). Different seed invigoration treatments had significant effects on seedling emergence, early dry matter accumulation, plant height, yield contributing characters as well as yield of two wheat varieties. KCI primed seeds showed better performance in wheat variety Shatabdi in respect to early growth, yield contributing characters (spikes per plant, grains per spike, grain weight per plant, straw weight per plant and individual seed size) and yield whereas in Bijoy, better performance was found from hydroprimed seeds. So, priming of seeds of wheat variety Shatabdi with 2.0% KCI and hydropriming of seeds of wheat variety Bijoy for 24h can successfully be integrated for early growth and yield enhancement.

Keywords: Seed invigoration, Growth, Yield and Wheat

Location: Crop Physiology and Ecology laboratory, Hajee Mohammad Danesh Science and Technology University (HSTU), Dinajpur

Start Date: 00-08-2007

End Date: 00-03-2008

Program Area: Variety and Species

Commodity: Barley

Objectives:

To find out the influence of different seed invigoration techniques to improve early growth and yield of two wheat varieties.

Methodology:

The study was conducted in Crop Physiology and Ecology laboratory, Hajee Mohammad Danesh Science and Technology University (HSTU), Dinajpur during August 2007 to March 2008. The experiment was conducted in two factors completely randomized design with three replications. The seeds of two wheat varieties were surface sterilized in 10% sodium hypochlorite solution for 10 minutes, then rinsed with sterilized water and air dried. Then different pre-sowing seed treatments were applied. A weighed quantity (250g) of wheat seeds was used in each treatment in plastic beakers containing 500ml of respective solution for specific time indicated in the treatments. After treatments, seeds were given three surface washings with distilled water and re-dried to the original weight with forced air under shade. For hardening treatment, this cycle was repeated twice for 12h. These seeds were sealed in polythene bags and stored in a refrigerator at 7°C for further studies. The treated seeds were compared with control one for early growth, yield characters and yield in a pot experiment.Total 54 pots (25cm x 30cm) were filled with 10kg of sandy loam soil and were fertilized at the rate of 140-175-75-18 kg/ha N-P-K-S in the form of Urea, TSP, MP and Gypsum. The whole quantity of TSP, MP, Gypsum and 1/3 of urea was given at the time of pot preparation. Remaining urea was top dressed into two equal splits at 21 and 50 DAS (Anonymous, 2005a). Thirty seeds of each treatment of the two varieties were sown in the earthen pot at the depth of 3cm. Three replications were used for each treatment. Intercultural operations like weeding, netting and Irrigation was done as per requirements.At 5th day, number of seedlings was counted in each replication to calculate emergence percentage. The above ground part of seedlings were collected at 7^th day after sowing and continued with an interval of 7 days up to 8 weeks. At each harvest 3 seedlings were collected randomly at the peripheral region in each pot. Then the seedlings were oven dried at 70°C temperature to get constant dry weight for studying early growth of wheat. The healthy plants in each pot were allowed to grow for evaluation of yield characters and yield of wheat. The findings were analyzed statistically using the analysis of variance (ANOV A) technique with the help computer by MSTAT-C program. The treatment means were compared by Duncun's Multiple Range Test (Gomez and Gomez, 1984).

Source of Information: J. Sci. Technol. (Dinajpur) Vol. 7: 67-75 (2009) ISSN 1994-0386

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The present study it might be concluded that priming of seeds with 2.0% KCI in wheat variety Shatabdi and hydropriming of seeds for 24 in wheat variety Bijoy can successfully be integrated for early growth and yield enhancement.

Knowledge Management: Journal