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Growth and Yield Potential of Some Local and High Yielding Boro Rice Cultivars

Bikash C. Sarker
Department of Agricultural Chemistry, Hajee Mohammad Danesh Science and Technology University, Dinajpur, Bangladesh

Meshkat Zahan
Department of Agricultural Chemistry, Hajee Mohammad Danesh Science and Technology University, Dinajpur, Bangladesh

B. Roy
Department of Agricultural Chemistry, Hajee Mohammad Danesh Science and Technology University, Dinajpur, Bangladesh

U. K. Majumder
Department of Statistics, Hajee Mohammad Danesh Science and Technology University, Dinajpur, Bangladesh

M. Atikul Islam
Department of Statistics, Hajee Mohammad Danesh Science and Technology University, Dinajpur, Bangladesh

Abstract/ Executive Summary:

A field experiment was conducted to study morphological, yield and yield contributing characters of four Boro rice varieties of which three were local viz., Bashful, Poshursail and Gosi; while another one was a high yielding variety (HYV) BRRI dhan28. The BRRI dhan28 were significantly superior among the cultivars studied. The BRRI dhan28 was shorter in plant height, having more tillering capacity, higher leaf number which in turn showed superior growth character and yielded more than those of the local cultivars. The HYV BRRI dhan28 produced higher number of grains panicle^-1 and bolder grains resulted in higher grain yield over the local cultivars. Further, BRRI dhan28 had erect leaves and more total dry mass than those of local varieties. The BRRI dhan28 produced higher grain yield (7.41 t ha^-1). Among the local rice cultivars, Gosi showed the higher yielding ability than Bashful and Poshursail.

Keywords: Growth, Yield potential, Local, HYV, Boro, Rice.

Location: Agricultural farm of Hajee Mohammad Danesh Science and Technology University (HSTU), Dinajpur

Start Date: 00-02-2011

End Date: 00-05-2011

Program Area: Variety and Species

Commodity: Rice

Objectives:

To study morphological, yield and yield contributing characters of four Boro rice varieties.

Methodology:

A field experiment was conducted in the agricultural farm of Hajee Mohammad Danesh Science and Technology University (HSTU), Dinajpur during the period from February to May 2011. The location of the experimental site was at 25^o38' N latitude and 88^o41' longitude and at the elevation of 34.5 m above the sea level. The experimental site was medium high land and belonging to the Agro-ecological Zone 1 (AEZ-1) named Old Himalayan Piedmont Plain. The soil was sandy loam of experiment plot having low soil pH (pH - 6.0).The Boro rice cultivars Bashful, Posursail, Gosi and one HYV BRRI dhan28 was used for the study. The required seeds were collected from Hobiganj, Netrokona and Naogoan district. The experiment was laid out in a Randomized Complete Block Design (RCBD) with four replications. The 40 days old seedlings were transplanted in the experimental plots on February 12, 2011. Healthy seedlings were uprooted carefully from the seed bed and three seedlings in each hill were transplanted in the experimental field following the distance of 20×20 cm. The chemical fertilizers like Urea, TSP, MOP and Gypsum were applied @ 215 kg, 180 kg, 100 kg, and 20 kg per hectare, respectively. At the beginning of land preparation one half of urea, full dose of TSP, MOP and gypsum were applied to the experimental plot. The remaining half of urea was applied in two splits, one at tillering and other at booting stages. After one week, in some plots, gaps of missing seedling were filled with the stock seedlings. Intercultural operations such as weeding by hand picking and applications of pesticides by hand sprayer at the vegetative growth stages were done as and when necessary. Data were recorded on plant height, leaf number per hill, leaf length, tiller number per hill, root length per hill, total tiller no, effective tiller, non effective tiller, panicle per plant, grain per panicle, 1000 grain weight, straw weight. At final harvest, the data of yield and some other yield attributing component were collected. Then roots were weight for dry weight. Harvest index is the relationship between economic yield and biological yield. The data collected on different parameters under the experiment were statistically analyzed using the MSTAT-C computer software. If the treatments were significant the mean differences between pairs of means were compared by Duncan’s Multiple Range Test (DMRT).

Source of Information: J. Agrofor. Environ. 7 (1): 107-110, 2013

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

BRRI dhan28 might be superior among the four studied varieties. But the selected three local varieties namely, Poshurshail, Bashful and Gosi also showed remarkable yield under advanced agronomic practices. Still BRRI dhan28 showed the highest yield potential than those of local cultivars. This study also infers that Bashful, Gosi and Poshurshail might be selected for screening as alternative cultivars due to its high genetic yield potential along with BRRI dhan28 in Northwest Bangladesh.

Knowledge Management: Journal