GARLIC, PREMATURE, SCREENING, SPROUTING.
The experiment was conducted during rabi season of 2012-2013 at Spices Research Sub-centre, Faridpur to screen out premature sprouting free garlic lines or varieties. The experimental field belongs to high land of Low Ganges River Floodplain (AEZ 12) with clay loam in texture and 7.6-8.1 soil PH .Thirteen different garlic lines (GC001, GC005, GC0012, GC0017, GC0018, GC0024, GC0027, GC0028, GC0031, GC0036, GC0038, GC0039 and GC004) were evaluated with BARI Garlic-1, BARI Garlic-2 as check The experiment was laid out in RCBD design with three replications. The unit plot size was 2.5m x 1.2m. The spacing was 15cm x 10cm. The land was fertilized with cowdung 5ton, N120, P120, k100 and S20 kg per hectare .The entire quantity of cowdung, P, K, S and half N were applied during land preparation. Remaining N was applied in two equal splits at 25 and 50 days after sowing. The cloves were planted on 01 November, 2012. Weeding was done at 25, 50 and 75 days after sowing. To control tip burn disease, the crop was sprayed with Bavistin @ 0.5g/l of water at 35, 45, 55 and 65 DAS. Similarly, to control thrips Regent @ 0.5ml/l of water was sprayed at 30, 40, 50 and 60 DAS. In general, garlic needs irrigation at 8 days interval during vegetative growth and 10-15 days during maturation. As the crop matures stop irrigation to allow field to dry out ,but in this experiment irrigation was continued 20 days before harvest for induce pre-mature sprouting . Crops were harvested on 27 March 2013. Data was recorded on plant height (cm), plant population/m2, bulb size (cm), individual bulb weight (g), no. of cloves/bulb, individual bulb weight(g), bulb yield (t/ha), percentage of premature sprouting bulb etc. and data was analyzed statistically by using MSTAT-C software.
Annual Research Report 2012-13, Spice Research Center, BARI, Shibganj, Bogra
The yield and yield contributing characters and percentage of premature sprouting of different garlic lines/varieties are shown in Table-1. Significant variations were observed among the lines/varieties in respect of plant height, population/m2, percentage of premature sprouting, bulb diameter, individual bulb weight, number of cloves/plant and yield (t/ha). The highest percentage of premature sprouting was observed at GC0024 (9.87%) and lowest from BARI Garlic-1 (0.943 %) whice is more or less similar to GC0038 (1.430). Individual bulb weight was higher in BARI Garlic-1(28.71) and lower in GC001(18.7). Number of cloves/plant was higher in BARI Garlic-1(23.47) which is more or less similar to BARI Garlic-2(23.33) and GC0024(23.13). The highest yield (5.833 t/ha) was obtained from BARI Garlic-2 and the lowest yield (3.000 t/ha) was from GC001.