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Growth Analysis of Different Sugarcane Varieties

M. K. A. Chowdhury
Bangladesh Sugarcane Research Institute, Ishurdi, Pabna, Bangladesh.

M. A. S. Miah
Bangladesh Sugarcane Research Institute, Ishurdi, Pabna, Bangladesh.

Abstract/ Executive Summary:

Growth analysis of sugarcane varieties was studied under different field conditions. Results showed that growth of different sugarcane varieties progressively increased with the advancement of time. Significant differences were obtained between varieties in respect of dry matter and leaf area. Relative growth rate (RGR) and net assimilation rate (NAR) differences among the varieties were not significant. But there was a significant difference in respect of leaf area index (LAI). Plant height also showed significant difference among the varieties. Growth analysis data revealed that sugarcane varieties had differences in respect of growth. Among the varieties, Isd 16 had a higher dry matter, leaf area, RGR and NAR followed by Isd 28.

Keywords: Sugarcane, Growth analysis, RGR, NAR, LAI

Location: BSRI Farm, Ishurdi

Start Date: 01-11-2001

End Date: 31-12-2002

Program Area: Crop-Soil-Water Management

Commodity: Sugarcane

Objectives:

To observe the growth and development responses of different sugarcane varieties under field condition

Methodology:

Seven sugarcane varieties were used in the present study. The experiment was laid out following randomized block design and replicated five times. Two budded double setts were planted continuously in the trench. The plot size was 8m x 6m and line to line distance was 1 m. Fertilizer and insecticides application and intercultural operation were done as per recommendation. The following morphological and physiological parameters were studied: 1. Stem dry weight, 2. Leaf dry weight, 3. Leaf area, 4. Stalk height, 5. Relative growth rate (RGR), 6. Net assimilation rate (NAR), 7. Leaf area ratio (LAR), 8. Leaf area index (LAI). Where, W₁ and W₂ were the dry weights of plant La₁ and La₂ were the leaf area of plants at the time t₁ and t₂ respectively. The leaf area was determined using a leaf area meter. The harvested plants were dried in a fan assisted drying oven at 70? to a constant weight. Plants were harvested destructively from an area of 1 m x 1 m of each plot. Harvesting was started from May and continued up to August. Data were subjected to statistical analysis by L.S.D test.

Source of Information: BANGLADESH JOURNAL OF SUGARCANE, Vol. 24-27, pp. 07-10, July 2005, ISSN- 1991-8925.

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Results showed that growth of different sugarcane varieties progressively increased with the advancement of time. Significant differences were obtained between varieties in respect of dry matter and leaf area. Relative growth rate (RGR) and net assimilation rate (NAR) differences among the varieties were not significant. But there was a significant difference in respect of leaf area index (LAI). Plant height also showed significant difference among the varieties. Growth analysis data revealed that sugarcane varieties had differences in respect of growth. Among the varieties, Isd 16 had a higher dry matter, leaf area, RGR and NAR followed by Isd 28.

Knowledge Management: Journal