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Effect of Mother Plant After Harvesting on the Growth and Yield of Banana in Ratoon Crop

Md. Azizul Haque
Department of Horticulture Bangladesh Agriculrural University, Myrnensingh, Bangladesh.

Abstract/ Executive Summary:

To retain mother plant of banana ( after harvesting) attached to sucker for ratooning, was found to be beneficial for the growth of ratoon crop. Out of five treatments, the suckers attached with full (T₁) and half mother plants (T₂) showed higher rate of vegetative growth in the early stages, and produced crops early ie. within 10.5-12 months. The bunch weight was also significantly higher in these cases (1330 and 12.13 kg respectively). In the treatment without mother plant (T₄), the period of harvesting continued for 4 months and the crop duration in this case was longest (15 months and 20 days). On the other hand, the suckers without mother plant when provided with irrigation (T₅), was found to recover from initial slow growth after detachment from mother plant and showed increased rate of growth at the later stages producing good bunches ( 12.50 kg). Thus, the highest yield (33.25 t/ha) was found in plants attached to entire mother plants (T₁) while it was the lowest (21.1 5t/ha) in plants without attachment (T₄)

Keywords: Harvesting, Yield, Banana, Ratoon crop

Location: Bangladesh Agriculrural University, Myrnensingh , Bangladesh

Start Date: 00-10-1982

End Date: 00-01-1984

Program Area: Variety and Species

Commodity: Banana

Objectives:

To investigate the of mother plant after harvest on the development of a ratoon crop.

Methodology:

The experiment was carried out at the Horticulture farm of the Bangladesh Agricultural University, Mymensingh, during the period from October 1982 to January, 1984. Sword suckers of uniform size were selected in freshly harvested plants en October 12, 1982. Studies were made with cultivar Amritasagar which is still a leading commercial variety of Bangladesh. The plants were spaced at 2 x 2m. The experiment was laid out in the completely randomized design with twelve replications. A single plant was taken as the unit for a treatment in replication. The soil of the experimental plot was silty loam having a pH of 6.6. Cultural practices and fertilizer applications were done as per recommendation. The observations on height and girth of plant; and number of leaves per plant were recorded at weekly interval starting from 22 weeks after the commencement of the experiment to 5I weeks. The height was measured from the uppermost point of rhizome to angular point formed by the inner petioles of plant and the girth was taken at the mid point of this height. The bunches were harvested when the fingers were full. The data on the cumulative number of emerged leaves per plant, number of green leaves at harvest, time of harvesting and weight of bunch were also recorded.

Source of Information: Bangladesh Journal of Agriculture. Vol: 10 (No-3), pp: 31-37, Jul-Sep 1985

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

It can be inferred from the above discussion that the mother plant had great influence on the sucker for the ratoon. It was possible to get a normal ratoon crop without any irrigation during dry months, if the mother plant with rhizome and pseudostem in full or up to half height remained attached to the selected sucker. In this case, about 40-50% higher yield than the plants without mother was obtained in a shorter crop period, which meant that the yield per unit time was still much greater.

Knowledge Management: Journal