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Influence of Residual Lime and Plant Growth Regulator (naa) on the Morphological and Physio-chemical Traits of Aromatic Rice Cv. Kataribhog

M.S. Rahman*
Department of Agricultural Chemistry, Hajee Mohammad Danesh Science and Technology University, Dinajpur, Bangladesh

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

M. Akhter
Bangladesh Agricultural Research Institute, Joydebpur,

M.A. Bashar
Department of Agricultural Chemistry, Hajee Mohammad Danesh Science and Technology University, Dinajpur, Bangladesh

M.R. Islam
Department of Crop Physiology and Ecology, Hajee Mohammad Danesh Science and Technology University, Dinajpur, Bangladesh

Abstract/ Executive Summary:

Aromatic rice possess high potential to draw attention rice consumer of the world for its aroma, fragrance, grain morphology, quality and other desirable traits. The production of aromatic fine rice is profitable due to its prices up to 10 times more than common rice on international market (Chaudary et al., 2001). In Bangladesh, a number of fine rice cultivars are grown by the farmers specially Kataribhog, Chinisagar, Badshabhog, Kalizira, Tulsimala, Dulabhog, Basmati, Banglamoti (BRRI dhan50), BRRI dhan34, BRRI dhan37 and BRRI dhan38. Liming is a normal agronomic practice to manage acid sulfate soils for crop production. In Malaysia, some areas of acid sulfate soils have been reclaimed for rice cultivation using lime. In the acid sulfate soils of the Muda Agricultural Development Authority (MADA) granary areas in Kedah-Perlis coastal plains (northwest coast of Peninsular Malaysia), for instance, rice yield improved significantly after applying 2.5 tons of ground magnesium limestone (GML) ha^-1. However, over liming may reduce crop yields due to lime induced P and micronutrient deficiencies (Fageria, 1984). Plant growth regulators (PGRs) are organic compounds, other than nutrients that modify plant physiological processes and also called biostimulants or bioinhibitors that act inside plant cells to stimulate or inhibit specific enzymes or enzyme systems and thus regulate plant metabolism. Recently, there has been global realization of the important role of PGRs in agriculture for better growth and yield of crop (Prasad and Paudel, 1994). These (PGRs) are being used as an aid to enhance yield. Naphthalene Acetic Acid (NAA) is one of the growth promoting hormones, which may play significant role to change growth characters and yield in BRRI dhan28.

Keywords: NAA, Residual lime, Kataribhog, Aromatic rice, Yield of Kataribhog.

Location: At agricultural farm, Department of Agricultural Chemistry, Hajee Mohammad Danesh Science and Technology University (HSTU), Dinajpur during February to May, 2011

Start Date: 00-02-2011

End Date: 00-05-2011

Program Area: Crop-Soil-Water Management

Commodity: Rice

Objectives:

The present study was carried out - i) to study the effect of NAA and residual lime effect on growth characteristics of Kataribhog. ii) to know the flag leaf composition of aromatic rice and the yield of Kataribhog.

Methodology:

The study was conducted at agricultural farm, Department of Agricultural Chemistry, Hajee Mohammad Danesh Science and Technology University (HSTU), Dinajpur during February to May, 2011. The rice variety Kataribhog rice was used as a test plant. Lime were applied (see modification in abstract) @ T1 = 0 t ha-1 (Control), T2 = 1.0 t ha-1, T3 = 1.5 t ha-1, T4 = 2 t ha-1, T5 = 2.5 t ha^-1 used in previous crop at summer mungbean cv. BARImung-7.Treatment @ H0 = 0 ppm NAA (Control), H1 = 100 ppm NAA, H2 = 150 ppm NAA and H3 = 200 ppm NAA spraying at vegetative and pre-flowering stages while water was used as control (H0). The experiment was laid out in a randomized complete block design with three replications. Thirty five days old seedlings were transplanted in February, 2012 using three seedlings hill^-1. Recommended dose of triple super phosphate (180 kg ha-1), muriate of potash (100 kg ha^-1), gypsum (20 kg ha^-1) and zinc (7.5 kg ha^-1) were incorporated to soil at final land preparation. Urea (215 kg ha^-1) was applied in three equal splits at 20, 35 and 55 DAT. Data on yield and yield contributing parameters, plant height, flag leaf length, flag leaf width, leaf numbers plant^-1, tiller numbers hill^-1 were recorded at maturity, while the panicle numbers hill^-1, filled grains panicle^-1, unfilled grains panicle^-1, 1000-grain weight, grain length, grain width, grain yield ha^-1, straw yield ha^-1, harvest index were recorded after harvest (synchronized all parameter). Chemical compositions of flag leaves under different treatments using PGR in the lime tested plots were estimated. The K, Ca, Mg, Zn, Cu and Fe content of flag leaves were estimated as per standard methods. Leaf chlorophyll-a, chlorophyll-b and total carotenoid were also monitored from green flag leaves. The data were statistically analyzed to compare treatment means using the MSTATC computer software developed, (Russell, 1986). If the treatments were significant the differences between pairs of means were compared by LSD followed by Duncan’s Multiple Range Test (DMRT) (Gomez and Gomez, 1984).

Source of Information: SAARC J. Agri., 15(1): 189-197 (2017)

Article Link (Online Journal): DOI: http://dx.doi.org/10.3329/sja.v15i1.33165

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

From the above findings, it can be concluded that Napthalene Acetic Acid and residual effect of lime significantly affected the yield as well as yield contributing parameters of Kataribhog rice, especially at 100 ppm NAA and 2 t ha^-1 of lime application.

Knowledge Management: Journal