Effect of Gibberellic Acid (GA3) and Biofertilizers Application on Growth and Flowers Quality of Gladiolus Gandavensis, L. Plants

Document Type : Original Article

Authors

1 Floriculture, Ornamental Horticulture and landscape Gardening Dept., Faculty of Agric., (EL-Shatby), Alexandria Univ. Egypt.

2 Department of Horticulture (Ornamental plants), Faculty of Agriculture Desert and Enviromental, Matrouh Univ. Egypt.

Abstract

Two field experiments were designed to study the effect of gibberellic acid (GA3) at 0, 50, 100 and 200 mgl-1 as pre-soaking of corms for 24 hr and bio-fertilizers [Nitrobine+Phosphorein (NP) 1:1 w/w] at rates 0.00  2.00 , 4.00 and 6.00 g/ plant). The aim of the present investigation was to evaluate the effect of gibberellic acid (GA3)and bio-fertilization on growth, flowering and corm production of Gladiolus gandavensis L. cv. '' Rosesupreme ''. The obtained data showed that solo treating of gladiolus corms with GA3, different rates of bio- fertilization and its combination stimulated the growth parameters  (plant height , number of leaves/ plant and leaves fresh weight / spike), flowering parameters (numbers of days from corms planting to flowering (day), number of florets /spike, and dry weights of spike L plant),leaves total chlorophyll , total carbohydratesof dry corms and yield production of corms. It can be recommended that treating gladiolus plants with GA3 at200 mgL-1 combined 4.00 and/or 6.00 g/ plant of bio-fertilizer (Nitrobine + Phosphorein 1:1 w/w) produce great yield of gladiolus plants (flowers and corms) with high quality 

Keywords

Journal of Plant Production
Volume 13, Issue 9
September 2022
Pages 691-697

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