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Influence of Seed Clove Size on Growth Attributes of Garlic (allium Sativum L.)

M. A Baten
Department of Crop Botany, Bangladesh Agricultural University Mymensingh.

M. A. H. Khan
Department of Crop Botany, Bangladesh Agricultural University Mymensingh.

M. A. Karim
Department of Crop Botany, Bangladesh Agricultural University Mymensingh.

Abstract/ Executive Summary:

Growth parameters such as LAI, SLA, NAR, RGR and TDM accumulation at various growth stages in garlic raised from 3 different clove sizes showed highly significant variation. Large clove size always gave highest LAI and TDM accumulation through out the whole ontogeny. The SLA of plants grown from the large cloves had a decreasing tendency, which was more pronounced from 42 to 112 DAP than that of the plants grown from medium and small size cloves. Both NAR and RGR had higher values in the populations of all the treatments at initial stages of crop growth. Plants from the large cloves were highly potential and capable of exploiting environmental resources to produce higher TDM, yield and HI with the highest net profit.

Keywords: Growth attributes, Clove size, Garlic

Location: Department of Crop Botany, Bangladesh Agricultural University, Mymensingh.

Start Date: 00-00-1987

End Date: 00-00-1988

Program Area: Crop-Soil-Water Management

Commodity: Garlic

Objectives:

To select optimum clove size of garlic for maximum yield.

Methodology:

The experiment was conducted at the experimental field and the laboratory of the Department of Crop Botany, Bangladesh Agricultural University, Mymensingh during 1987- 88 growing season. The soil of the field was sandy loam. During the growing period, the maximum and minimum air temperatures varied from 24.4^oC to 28.9⁰C and 11.8°C to 19.1°C, respectively; the relative humidity was 75-80% and the sunshine varied from 6.5 to 8.5 hours. The experiment consisted of three different sizes of cloves viz. large (128g/100 cloves), medium (86 g/100 cloves) and small (40 g/1 00 cloves) as obtained from the local cultivar of garlic of Bangladesh. The unit plot was 2m x 2m in size in which cloves were planted at a spacing of 25cm x 10cm. The plots were laidout in randomized complete block design with 5 replicates. Cowdung and triple super phosphate (T.S.P.) were applied @ 10 ton/ha and 148 kg/ha, respectively as basal doses; urea and muriate of potash @ 173 and 148 kg/ha, respectively were applied 20 and 45 days from planting as top dressing in two equal installments. The crop was irrigated fortnightly. Dithane M-45 was sprayed once a month to control leaf blight and Alternaria leaf spot diseases. Crop samplings for growth analysis beginning from 28 DAP was continued till 126 DAP (Days after planting) at 14 days interval. Twenty plants from each harvested area (05 m²) were uprooted, cleaned in running tap water and were blotted. Various components of the plant representing roots, stems and leaf blades were separated. Then the components were oven dried for 48 hours at 80⁰C and their dry weights were taken separately. Leaf area was measured by a leaf area meter. Then the standard growth analyses were derived for LAI, SLA, RGR and NAR by computing the raw data of leaf area and the component dry weight. Analysis of variances were performed in each harvest for dry matter, leaf area and yield and their means were compared by least significant difference (LSD) test. The harvest index (HI) was determined as follows:

HI = Bulb yield (dry weight)/Biological yield (dry wt.)

Source of Information: Progressive Agriculture, Vo-1 (1), 45-51, 1990,

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Thus, based on above observations, it appeared that the plants originated from large size cloves have the greatest competitive ability and capacity to utilize environmental resources to produce more dry matter and finally higher yield of bulb in comparison to plants originated from medium and small size cloves.

Knowledge Management: Journal