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Effect of Seed Sources and Seed Treatments on Yield and Yield Contributing Characters of Rice in Bangladesh

M.M.H. Chowdhury
Seed Pathology CentreBangladesh Agricultural University, Mymensingh

I. Hossain
Department of Plant Pathology, Bangladesh Agricultural University, Mymensingh

H. Mahmud
Department of Agriculture Extension, Khamarbari, Dhaka, Bangladesh

M. Ahmad
3Department of Horticulture, Bangladesh Agricultural University, Mymensingh

S. Kaysar
Department of Agricultural Chemistry, Bangladesh Agricultural University, Mymensingh

Abstract/ Executive Summary:

The experiment was conducted in the Field Laboratory of the Department of Plant Pathology, Bangladesh Agricultural University, Mymensingh during 2008 to find out the effect of seed sources and seed treatments on yield and yield contributing characters of T. aman rice seed. There were two seed sources (S1-Farmer and S2-BADC) and nine seed treatments viz. T₁-No seed treatment (check), T₂-Sorted out clean seed, T₃-Washed seed, T₄-Washed and sorted out clean seed, T₅-Seed treated with garlic extract (1:10), T₆-Seed t.reated with vitavax-200 (0.3%), T₇-Seed treatment with BAU-Biofungicide (2%), T₈-Seed treated with Brine solution (10% Nacl) and T₉-Seed treated with urea solution (2%) were used in this study. The highest total number of tiller/hill, total number leaf/hill was recorded in S₂ while the lowest was recorded in S₁. The maximum number of infected leaf/hill, %leaf infection, number of lesion/hill was recorded in S₁ while the minimum was in S₂. On the effect of seed treatment the highest total number of tiller/hill was recorded in T₄ while the lowest was T₁. The maximum infected leaf/hill, %leaf infection was recorded in T₁ while the minimum was T₄. Interaction effect of seed sources and seed treatment the highest total number of tiller/hill was recorded in S₂ x T₄ while the minimum was recorded in S₁ x T₁. The maximum %leaf infection was recorded in S₁x T₁ while the minimum was S₂ x T₄. At the ripening stage the highest total number of tiller/hill, total number leaf/hill was recorded in S₂ while the lowest was recorded in S₁. The maximum %leaf infection, number of lesion/hill was recorded in S₁ while the minimum was S₂. On the effect of seed treatment the highest total number of tiller/hill, total number leaf/hill was recorded in T₄ while the lowest was T₁. The maximum infected leaf/hill, %leaf infection, number of lesion/hill was recorded in T₁ while the minimum was T₄. Interaction effect of seed sources and seed treatment the highest total number of tiller/hill was recorded in S₂ x T₄ while the minimum was recorded in S₁ x T₁. The maximum infected leaf/hill, %leaf infection, number of lesion/hill was recorded in S₁ x T₁ while the minimum was S₂ x T₄. In case of seed sources the highest total number of tiller/hill, number of effective tiller/hill, number of filled grain/hill, grain yield/plot was recorded in S₂ while the lowest was S₁. The maximum ineffective tiller/hill, number of unfilled grain/hill, plant height, panicle length, 1000 grain weight was recorded in S₁ while the minimum was recorded in S₂. As regard the effect of seed treatment the highest total number of tiller/hill, number of effective tiller/hill, number of filled grain/hill, plant height, panicle length, 1000 grain weight, grain yield/plot was recorded in T₄while the lowest was T₁. Interaction effect of seed sources and seed treatment the highest total number of tiller/hill, number of effective tiller/hill, number of filled grain/hill, grain yield/plot was recorded in S₂ x T₄ while the minimum was recorded in S₁ x T₁. Grain yield was increased by 44.39% in washed sorted out clean seed plots.

Keywords: Rice seed, Sources, Treatment, Yield

Location: Field Laboratory of the Department of Plant Pathology, Bangladesh Agricultural University, Mymensingh

Start Date: 00-01-2008

End Date: 31-12-2008

Program Area: Seed Technology

Commodity: Rice

Objectives:

1. To increase seed yield and seed quality by the treatment of chemical and biological means.

Methodology:

The experiment was conducted in the field laboratory, Department of Plant Pathology, Bangladesh Agricultural University (BAU), Mymensingh during 2009. The soil of the experimental plots was sandy loam in texture belongs to Sonatola soil series under Old Brahmaputra Flood Plain. The morphological description of the field according to UNDP and FAO is: Agro-ecological zone = Old Brahmaputra Flood Plain (No. 9), Land type = Medium high land, General soil type = Non-calcarius Dark Grey Floodplain, Topography = 18m above the mean soil. There were two seed sources Viz. S₁- BADC Seed, S₂- Farmer’s Seed and BRRI dhan 40 ware used in this study. Different seed treatments viz. T₁-Control, T₂-sorted out clean seed, T₃-washed seed, T₄-washed sorted out clean seed, T₅-seed treatment with garlic extract (1:10), T₆-seed treatment with vitavax-200 (0.3%), T₇-seed treatment with BAU-Biofungicide (2%), T₈-seed treatment with brine solution (10% Nacl), T₉- Seed treatment with urea solution (2%) were used. The seedlings were raised in seed beds. Seed bed was divided into two halves; one half was used for farmer seed and the other for BADC seed. The seed beds were prepared by puddling the wet land with repeated ploughing followed by laddering. Seeds (500 g) were taken from each sample. The seeds were subjected to treatment as per plan before soaked in water for about 48 hours and sprouted for 3 days under shade in moist gunny bags. The sprouted seeds were then broadcasted uniformly on the well prepared seed bed and then covered with a thin layer of fine soil. The experimental field was thoroughly prepared by ploughing and cross ploughing with power tiller followed by laddering. The experiment was laid out in two factors Randomized Complete Block Design (RCBD) with 3 replications where each plot size was 10 m². Fertilizers applied as per recommendation of BRRI as Urea (N) 130 kg/ha, TSP (P₂0₅) 600 kg/ha, MP (K₂0) 60 kg/ha, Gysum (S) 30 kg/ha, Zinc Sulphate (Z) 5 kg/ha. All fertilizers except urea were incorporated to the soil during final land preparation. Urea was applied in equal three installments at 21, 45 and 70 days after transplanting (DAT). Thirty day old seedlings were uprooted and transplanted in the field at the rate of three seedlings per hill. Hill to hill and row to row distances were 20 cm and 20 cm, respectively. Fertilizer application, irrigation and pest control were same in all plots under study. The crop was harvested in December at full ripening stage and threshed. Threshing was done by two medium strong biting in two side of the bundle to avoid threshing of unfilled or partially filled grain. Yield component data were collected. Grain yields were taken from each plot. Grain yields were adjusted to 14% moisture content and expressed as ton/ha. Analysis of variance was done and the mean differences in the efficacy of the treatments were judged by Duncan’s Multiple Range Test (DMRT). Data on grain yield and disease incidence and severity were analyzed using M- STAT.

Source of Information: J. Agrofor. Environ. 7 (2): 125-129, 2013; ISSN 1995-6983

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The highest total number of tiller/hill, total number leaf/hill was recorded in S₂ while the lowest was recorded in S₁. The maximum number of infected leaf/hill, % leaf infection, number of lesion/hill was recorded in S₁ while the minimum was in S₂.

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