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Genetic Variability, Distance and Traits Interrelationship Analysis of Nerica and Inpari Rice Varieties

R.K. Sikder
Horticulture Development Division, BADC, Dhaka-1000, Bangladesh

M.A. Rahman
Dashmina Seed Multiplication Farm, BADC, Patuakhali, Bangladesh

M.I. Asif
Department of Seed Technology, Sher-e-Bangla Agricultural University

AFM Jamal Uddin
Deaprtment of Horticulture, Sher-e-Bangla Agricultural University, Dhaka, Bangladesh

H. Mehraj
The United Graduate School of Agricultural Sciences, Ehime University, 3-5-7 Tarami, Matsumaya, Ehime 790-8556, Japan

Abstract/ Executive Summary:

Rice (Oryza sativa) is one of the most important cereal crops in Bangladesh. NERICA and INPARI have been recognized widely as a promising high yielding upland rice variety. This study attempts to assess some characteristics of three NERICA (V₁: NERICA-1; V₂: NERICA-10 and V₃: NERICA-19) and three INPARI (V₄: INPARI 12; V₅: INPARI 13 and V₆: INPARI 14) varieties. Different rice varieties had significant effects on plant height, leaf area, flag leaf area, number of tillers, days to flowering and harvesting, number of panicles, number of grains, 1000-grain weight, yield and moisture of seed. Maximum number of tiller was found from V₄ (24.4/plant) while minimum from V₂ (16.6/plant). Maximum flag leaf area (19.1 cm²), number of panicle (22.0/plant), 1000-grains weight (25.3/plant), yield/plot (11.9 kg) and yield/ha (6.8 t) was found from V₄ followed by V6 (19.0 cm², 20.2/plant, 24.6 g, 10.9 kg and 6.2 t respectively). From the study it was found that INPARI 12 and INPARI 14 was the best performing variety. Both positive and negative relationship was found among the traits. It was observed maximum proximity dissimilarity was 37.0 while minimum was 8.0.

Keywords: Oryza sativa, Phenotypic traits, Correlation and proximity dissimilarity

Location: Dashmina Seed Multiplication Farm, BADC, Patuakhali, Bangladesh

Start Date: 00-12-2013

End Date: 00-05-2014

Program Area: Variety and Species

Commodity: Rice

Objectives:

To assess some characteristics of three NERICA (V₁: NERICA-1; V₂: NERICA-10 and V₃: NERICA-19) and three INPARI (V₄: INPARI 12; V₅: INPARI 13 and V₆: INPARI 14) rice varieties.

Methodology:

Experiment was conducted at Dashmina Seed Multiplication Farm, Dashmina, Patuakhali, Bangladesh from December 2013 to May 2014. Six rice varieties viz., NERICA (V₁: NERICA-1; V₂: NERICA-10 and V₃: NERICA-19) and three INPARI (V₄: INPARI 12; V₅: INPARI 13 and V₆: INPARI 14) were used for the experiment following completely randomized block design with three replications. The unit plot size was 17.2 m². The fertilizers N, P, K, S, Zn and B in the form of urea (150 kg ha^-1), TSP (100 kg ha^-1), MP (kg ha^-1), gypsum (60 kg ha^-1), zinc sulphate (10 kg ha^-1) and borax (10 kg ha^-1) respectively were applied. Entire amount of TSP, MP, gypsum, zinc sulphate and borax were applied during final preparation of plot land. Mixture of cowdung and compost (10 t ha^-1) was applied during 15 days before transplantation. Urea was applied in three equal installments at after recovery, tillering and before panicle initiation. Data were collected on plant height, leaf area, flag leaf area, number of tillers, days to flowering, days to harvesting, number of panicles, number of grains, 1000-grain weight, yield and moisture of seed. Plant height, leaf area, flag leaf area and number of tillers were measured at 90 DAT. Collected data were analyzed statistically using MSTAT-C computer package program and significance of the difference among the treatment means was estimated by the Least Significant Difference (LSD) test at 5% level of probability. Interrelationship and Genetic divergence (genetic distance) among varieties was measured by Euclidean distance method using SPSS software.

Source of Information: Scientia Agriculturae, 10 (1): 44-48, (2015)

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Among the tested rice varieties, INPARI 12 and INPARI 14 were best in respect of yield. The expected long term impact of this participatory research on INPARI (specifically INPARI 12 and INPARI 14) cultivation would be able for development and adoption of rice cultivation by farmers in Bangladesh

Knowledge Management: Journal