M. M. ZAMAN
Senior Scientific Officer
Regional Spices Research Centre, BARI, Magura
J. PAUL
Scientific Officer
Regional Spices Research Centre, BARI, Magura
An experiment was conducted at Spices Research Centre, Magura during 26 December, 2011 to 1 April, 2012 to study the effect of growth regulator and seeding age on bolting of onion. The combination of Maleic hydrazide (3g/l) with 50 days seedling age(T1S2) gave the highest yield of onion. The combination of control with 60 days seedling age (T3S3) gave the lowest yield of onion. So, growth regulator and seedling age has significant influence on bolting of onion.
BOLTING, GROWTH REGULATORS, ONION, SEEDLING AGE.
Regional Spices Research Centre, BARI, Magura
Variety and Species
To develop a new technology for controlling bolting of onion.
The trial was carried out at RSRC, Magura during 26 December, 2011 to 1 April , 2012. The trial was consisted of two factors. Factor-A: Growth regulator and Factor-B:Age of seedling. 40, 50 and 60 days old seedlings of BARI Piaz-1 were used in the study. Maleic hydrazide and Cycocel were used as growth regulator in this study. The two factor experiment was laid out in RCB design with three replications. The unit plot size was 3.0mX2.5m with spacing 15cmX 10cm. Planting was done on 26 December, 2011. The land was fertilized with cowdung and N120 P54 K75 S20 Zn2 Kg/ha. The entire quantity of cowdung, P, S Zn and half of N and K were applied as basal dose. Remaining N and K were top dressed in two equal splits at 25 and 50 days after planting. Weeding and other intercultural operations were done as and when required. The crop was harvested on 1 April, 2012 after maturity. Data on yield and yield components were recorded and analyzed
Spice Research Report 2011-12
Application of maleic hydrazide @3g/L with 50 days old seedlings might be helpful for preventing pre-mature bolting and thereby increased bulb yield. As it was the first year trial, further verification is needed for the recommendation
Report/Proceedings