In vitro effect of seed bio-priming techniques on seed germination and seedling vigour of few vegetable crops
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Abstract
Bio-priming can also be viewed as a new technique of seed treatment using biological agents to stimulate germination of seed and growth of the plant and further protecting the seed from soil-and seed-borne pathogens. The present investigation was carried out in vitro conditions on seed germination and seedling vigour of few vegetable crops viz. tomato (Solanum lycopersicum L.), brinjal (Solanum melongena L.), onion (Allium cepa L.) and chilli (Capsicum annuum L.), during 2015 and 2016. The treatments comprised viz. T1: Non primed seeds (Control), T2: Seed treatment with Carbendazim 2.5g/kg seed, T3: Hydro-priming for 6 hrs, T4: Hydro-priming for 12 hrs, T5: Hydro-priming for 18 hrs, T6: Biopriming with Trichoderma viride for 6 hrs, T7: Biopriming with T.viride for 12 hrs, T8: Biopriming with T.viride for 18 hrs, T9: Biopriming with Trichoderma harzianum for 6 hrs, T10: Biopriming with T. harzianum for 12 hrs, T11: Biopriming with T. harzianum for 18 hrs, T12: Biopriming with Pseudomonas fluorescens for 6 hrs, T13: Biopriming with P. fluorescens for 12 hrs and T14: Biopriming with P. fluorescens for 18 hrs. The results revealed that maxiumum germination percentage (92.92, 90.77,83.00 and 86.33), seedling length (32.38 cm, 29.35 cm, 31.75 and 31.60 cm), seedling fresh weight (2.07 g, 4.01 g, 3.05 g and 2.04 g), seedling dry weight (0.42 g, 0.86 g, 0.62 g and 0.42 g) and seedling vigour index (3008.11, 2664.00, 2635.00 and 2728.00) were recorded in T10 (bio priming with T. harzianum for 12 hrs) in tomato (S. lycopersicum L.), brinjal (S. melongena L.), onion (A. cepa L.) and chilli (C. annuum L.), respectively. Thus, it indicated that priming of seeds of these crops with T. harzianum/P. fluorescens/ T. viride for 12 hrs was very effective with respect to their vegetative growth along with the quality yield.
Article Details
Article Details
Bio-priming, Brinjal, Chilli, Germination, Onion, Seedling vigour, Tomato
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