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Effect of Some Growth Regulators on Growth, Yield and Chemical Composition of Potato

M. Tazul lslam
Associate Professor
Crop Science, Graduate Training Institute, BAU, Mymensingh.

S.M.M. Alam
Aasistant Professor
Crop Botany, BAU, Mymensingh.

Abstract/ Executive Summary:

Plants treated with NAA increased weight of haulm, LAI, Chlorophyll content of leaf, yield per plant and both total sugar and starch content of the tuber. Plants received 150,ppm IBA gave better and beneficial results than the plants received 300 pprn IBA. Cycocel treatment aIthough had some reduction effects but increased LAI, chlorophyll content of leaf, number of tuber, total sugar, starch and finally yield per plant. Chemical 2,4-D as a whole had negative effects with the decrease of yield per plant. total sugar and starch content of tuber.

Keywords: 2,4-D, Plant growth, Yield and Chemical composition, Tuber

Location: Bangladesh Agricultural University farm, Mymensingh

Start Date: 11-11-1982

End Date: 00-00-1983

Program Area: Crop-Soil-Water Management

Commodity: Potato

Objectives:

To observe the effects of NAA IBA, eycocel and 2,4-D on plant growth, yield and chemical composition of tuber

Methodology:

The experiment was conducted at the Bangladesh Agricultural University farm, Mymensingh during the winter months of 1982-83. The tubers of potato CV. Mutta were cut at the size of 2 ozs, planted at a distance of 15 cm from hill to hill. 75 cm from row to row in lines at a depth of 5 cm following randomized block design having 4 replications. The size of the unit plot was 3mX3m. The planting was done in November 11. 1982 in the field. After 21 days of planting the plants were sprayed with Naphthalene acetic acid (NAA) at 100 ppm: 200 ppm; B-lndole-3 butyric actd (IBA) at 150 ppm, 300 ppm; cycocel (CCC) at 500 ppm, 1000 ppm, and 2, 4-Dichlorophenoxy acetic acid (2,4-D) at 10 ppm, 20 ppm and with water. The height of the plant, dry weight of the haulm, leaf area index, chlorophyll content of the leaf, number of tuber per plant, yield per plant, sugar and starch content in tuber were determined. Finally statistical analysis was made of the experimental data.

Source of Information: Bangladesh Journal at Training and Development Vol. 2 No.2, 33-39, June 1989

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The results of the investigation may suitably be used as training materials or the mid-level crop-scientists working in the field. Hopefully, it will also be beneficial for the extension workers in suggesting farmer for appropriate cultural practices and selecting suitable potato variety for higher yield. The nature of treatments and the mode of analysis might be used as guidelines for the junior researchers in this area.

Knowledge Management: Journal