Effect of Phosphorus and Zinc on Growth, Flowering and Yield of Gladiolus
Amaily Akter
Department of Horticulture, Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh.
Mohammad Shahjahan *
Department of Horticulture, Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh.
Khairul Kabir
Department of Horticulture, Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh
Aysha Chowdhury
Department of Genetics and Plant Breeding, Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh.
Md. Ruhul Amin
Department of Horticulture, Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh.
A. N. M Sayem Sayem
Department of Horticulture, Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh.
Abu Yousuf Shihab
Department of Horticulture, Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh.
*Author to whom correspondence should be addressed.
Abstract
The investigations were conducted in the Horticulture Farm, Sher-e-Bangla Agricultural University, Dhaka, Bangladesh during November 2013 to March 2014. The studies were conducted on two factors Phosphorus and Zinc, where Phosphorus doses were adjusted at Four Doses i.e. P0: 0, P1: 120, P2: 140 and P3: 160, P2O5kg ha-1 respectively. Similarly Zinc was also adjusted at Four Doses as Zn0: 0, Zn1: 1, Zn2: 2 and Zn3: 3 Zn kg ha-1 respectively. The experiment was laid out in a randomized complete block design (RCBD) with three replications. In case of phosphorus, highest corm yield (18.92 t ha-1) and no. of spike (249300 ha–1) was achieved from P2 and lowest corm yield (16.57 t ha–1) and no. of spike (208900 ha–1) was from P0. In case of zinc, highest corm yield (19.64 t ha–1) and no. of spike (251500’ ha–1) was from Zn2 while lowest corm yield (15.79 t ha–1) and no. of spike (201200 ha–1) was from Zn0. For interaction effect, highest corm yield (20.64 t ha–1) and no. of spike (268300 ha–1) was from P2Zn2 while lowest corm yield (14.801 t ha–1) and no. of spike (195000 ha–1) was from P0Zn0. So, 140 kg P2O5 and 2.0 kg Zn ha–1 was found best for growth, flowering and yield of gladiolus.
Keywords: Zn, P2O5, corm yield, cormel number, gladiolus