Boron deficiency induced retardation in pollen-stigma interaction in soybean plants
Publication Date : 10/07/2015
To assess the boron deficiency induced changes in reproductive development, an experiment was conducted with soybean (Glycine max var. JS-335), in sand culture under glass house condition till maturity at deficient (0.033 mg BL-1) and sufficient (0.33 mg BL-1) boron supply. Deficient supply of boron delayed as well as decreased the number of flowers formed per plant and reduced the size of anthers, pollen producing capacity (PPC), the size and viability of pollen grains, pollen tube length, pistil size and number of ovules per ovary. Insufficient boron in plants also affected the activities of stigmatic enzymes- peroxidise, acid phosphatise and esterase which are involved in adhesion of pollen grains on stigmatic surface during fertilization phenomenon and this is indicative of a role of boron in pollen-stigma interaction.
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