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Effect of Irrigation and Water Hyacinth Mulch on Fruit-set and Fruitdrop in Two Species of Citrus

M. F. MONDAL
Department of Horticulture, BAU, Mymensingh

Abstract/ Executive Summary:

A field study was made at the Citrus Research Project of the Horticulture Farm of BAU, Mymensingh during the period from March to June 1990. Irrigation increased the fruit-set and fruit-drop in both seedless lemon and Kagzi lime. Fruit-set increased and fruit-drop reduced with the frequency of irrigation The highest percentage of fruit-set (50%) and the lowest percentage of fruit -drop (30%) were obtained when irrigation was given once a week. Irrigating the plants only once a month in presence of water hyacinth mulch gave almost identical results in respect of fruit-drop as irrigating once a week without mulch.

Keywords: Seedless lemon, Kagzi lime, lrriqation, Fruit-set, Fruit-drop, Water hyacinth.

Location: Citrus Research Proiect of the Horticulture Farm, BAU, Mymensingh.

Start Date: 00-03-1990

End Date: 00-06-1990

Program Area: Crop-Soil-Water Management

Commodity: Lemon

Objectives:

An attempt was made to increase the fruit-set and reduce fruit-drop by irrigation and water hyacinth mulch.

Methodology:

Two small experiments were conducted at the citrus Research Proiect of the Horticulture Farm, BAU, Mymensingh. The experiment was carried out during the period from March to June 1990 on seedless lemon and Kagzi lime. Ran- 127 demised block design was used for the experiment. One plant of each species was selected for each treatment which, was replicated thrice. There were five treatments and thus altogether 30 plants were used for this experiment. The experimental soil was sandy loam in texture: The treatments were; (i) No irrigation (control), (Il) One irrigation per month, (iii) two irrigation per month (iv) three irrigation per month and (v) four irrigation per month. The experiment was conducted during the period from March to June 1990 on seedless lime. In this experiments all the experimental plants were mulched with water hyacinth. Two plants from each species were kept unirrigated (control), two plants were irrigated only once in four months, two plants were irrigated twice in four months, two plants were irrigated thrice in four months and two plants were irrigated four times in four months. The design and replication used in this experiment were as for experiment 1. ln both the experiments irrigation was given by a bucket and water was given to each plant until saturation of soil occurs.

Source of Information: Proc. BAU Res. Prog. 5: 126-129,1991

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The results of the experiment clearly indicate that fruit-drop in citrus can be reduced quite significantly even with fewer irrigation if water hyacinth is used as a mulch.

Knowledge Management: Report/Proceedings