EFFECT OF FOLIAR APPLICATION OF Ca Mg Zn AND DEPTH OF CORM ON GROWTH, FLOWERING AND CORM YIELD OF GLADIOLUS

Abstract

The experiment was conducted at the research farm of Sher-e-Bangla Agricultural University, Dhaka, Bangladesh from November 2016 to March 2017. The experiment comprised as two factors, factor A four levels of micronutrients i.e. M 0 = Control, M 1 = (Zn 50 mg, Mg 200 mg, Ca 400 mg), M 2 = (Zn 100 mg, Mg 300 mg, Ca 500 mg), M 3 = (Zn 150 mg, Mg 400 mg, Ca 600 mg) and factors B three levels of depth of planting i.e. D 1 = 6 cm, D 2 = 9 cm and D 3 = 12 cm. The experiment was conducted following RCBD with three replications. The maximum number of spike (3,11,000 /ha) and corm yield (11.93 t/ha) was recorded in M 2 while the minimum number of spike (1,52,000 /ha) and corm yield (4.88 t/ha) was recorded in M 0 . For depth, the maximum number of spike (3,09,000 /ha) and corm yield (11.73 t/ha) was recorded in D 2 while the minimum number of spike (1,96,000 /ha) and corm yield (6.83 t/ha) was recorded in D 1 . For Combination the maximum number of spike (3,73,000 /ha) and corm yield (15.06 t/ha) was recorded in M 2 D 2 while the minimum number of spike (1,20,000 /ha) and corm yield (6.80 t/ha) was recorded in M 0 . So, Zn 100 mg, Mg 300 mg, Ca 500 mg in 9cm depth was the best for growth, flowering and corm production of Gladiolus.