Author: Sakshi Santosh Vyas, Anil K. Singh, Anjana Sisodia and Kalyan Barman
Zinc is one of the essential micronutrients to the plants having antioxidant properties which eventually help in enhancing the quality and vase life of flowers. But usually the application of micronutrients is neglected all over the world. Therefore, supply of adequate amount of nutrients at proper time is imperative for achieving quality flowers for export to the international market. The present research effort aims to elucidate the response of gladiolus cv. Malaviya Kundan to different concentrations of zinc sulphate for obtaining better flowering trait. An experiment was conducted at Horticulture Research Farm, Banaras Hindu University, Varanasi. Experiment was consisted seven grades of corms (1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0 cm) with three levels of zinc (0, 15.0 and 30.0 kg/ha) which was laid out in Randomized Block Design (RBD) and replicated 4 times. Parameters like days to spike emergence, days to colour show, days to opening of floret, diameter and length of floret, spike length, rachis length, number of florets per spike and number of opened florets, longevity of floret and duration of flowering were taken into consideration to assess the effect of propagule size and zinc. The results revealed that corm grade 3.5 cm achieved significant results on most of the flowering indices including length of 3rd and 5th floret, duration of flowering, number of florets, number of opened florets, spike length and rachis length followed by grade 4.0 cm. Various doses of zinc produce significant effect on flowering parameters. ZnSO4 at 15kg/ha was found beneficial for most of the flowering parameters in gladiolus i.e. early emergence of spike, early colour show, days to opening of 1st floret, duration of flowering, number of opened florets, spike length and rachis length. Interaction effect between corm grade and zinc was found to be non-significant for all the flowering parameters.
Zinc sulphate, soil application, corm grades, flower diameter, flowering duration
On the basis of the experimental findings it maybe concluded that the application of ZnSO4 at 15 kg/ha was found beneficial on most of flowering parameters. However, among various grades largest corm grade i.e. 4.0 cm was found to be the best for most flowering parameters followed by grade 3.5 cm and 3.0 cm, respectively.
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Sakshi Santosh Vyas, Anil K. Singh, Anjana Sisodia and Kalyan Barman (2023). Propagule Size and Zinc Application influenced flowering in gladiolus cv. Malaviya Kundan. Biological Forum – An International Journal, 15(9): 282-286.