M. B. Sarker
Scientific Officer
Spices Research Center,BARI, Shibganj, Bogra
M. S. Alam
Senior Scientific Officer
Spices Research Center,BARI, Shibganj, Bogra
The experiment was conducted at Spices Research Center, Bogra during July 2012-Septembar 2012 to find out the optimum curing time and neck length of onion bulbs for better storage life. Three curing times of onion bulbs 7, 14, 21 days and three neck lengths of onion bulbs 2cm, 4cm and 6cm were considered as treatment. Fourteen days curing with 6cm neck length was significantly better in comparison with other treatment. The treatments had significant influence on curing time and neck length. The lowest percentage of weight loss (49.33%) was found in 14 days curing with 6 cm neck length after 80 days of storage.
CURING TIME, NECK LENGTH. STORABILITY, SUMMER ONION.
Spices Research Center,BARI, Shibganj, Bogra
Variety and Species
T study the effect of curing time and neck length on storage life of summer onion.
The experiment was conducted at the Spices Research Centre, Sibgonj, Bogra during kharif-2, season, 2012. The seed bulbs were stored from July 2012 to September 2012. The variety BARI piaz-5 was used in the experiment. Three curing time of onion bulbs viz.,7,14, and 21 days and three neck length viz., 2, 4 and 6cm were included in the study. The two factor experiment was laid out in Randomized Complete Block Design. Three levels of curing time considered after harvest for the experiment. After harvesting of onion, bulbs were cured keeping different neck length according to treatment. After curing, onion bulbs were stored from 30 July to 20 September at room temperature. The stored bulbs were checked and data were collected at 20 days interval. Data on physiological weight loss%, rotting%, sprouting% were recorded and analyzed statistically. The means were separated by LSD test following MSTAT-C software.
Annual Research Report 2012-13, Spice Research Center, BARI, Shibganj, Bogra
15,000/-
The weight loss(%) of summer onion bulb as affected by different curing days and neck length are presented in Table -1. The weight loss(%) of bulb varied significantly at different dates of storage except 60 days. The highest percentage of weight loss (60.33) was recorded from 21 days curing with 2 cm neck length at 80 days storage. The lowest weight loss (49.33%) was recorded form 14 days curing with 6 cm neck length at 80 days storage.
The percentage of sprouted bulbs at different periods of storage was significantly influenced by combined effect curing time and neck length of onion (Table-3).The bulbs subjected to 14 days curing with 6cm neck length gave the lowest sprouted bulbs (1.90%) at 80 days storage followed by 21 days curing with 2 cm neck length (3.52%) .
onion stored after 14 days curing with 6 cm neck length performed better providing lowest percentage of weight loss, rotting and sprouting at 80 days of storage. It was a first year study. The study will be repeated for conclusive inference.
Report/Proceedings