RESUMO
The study was carried out at Vegetable Research Station, TNAU, Palur, Tamil Nadu during 2021to2022. The experiment was laid out in Factorial Randomized Block Design (FRBD) with eight treatments and three replications. Planting materials used for the study were bulbs and bulblets. The eight nutrient combinations were tried with foliar application of micronutrient like zinc sulphate (0.2%), Ferrous sulphate (0.5%), Copper sulphate (0.4%) and Boric acid (0.2%) on 30, 60 and 90 DAP, individually and in combination with 25 t ha-1 FYM and recommended dose of fertilizer (200:200:200 kg ha-1 NPK). The control was maintained with RDF. Various biometric observations on growth and flowering attributes of tuberose were observed for all the treatments at different stages. The result of the present investigation revealed that among the interaction effects,B1N8[RDF + ALL 19 (NPK) + GA3@ 200 ppm (2 spray at 30 days intervals) + ZnSO4 (0.2%) + FeSO4 (0.5%) + H3BO3 (0.2 %) + CuSO4 (0.4 %)] recorded the highest plant height (95.12 cm), leaf length (51.85 cm), leaf width (2.4 cm), number of leaves per plants (42.67), rachis length (34.87cm), number of floret/spikes (46.66), flower duration (18.12 days), floret length (6.92 cm) and floret diameter (4.39cm) followed by the treatment B2N8 which recorded the highest height (90.44 cm), leaf length (48.48 cm), leaf width (2.2 cm), number of leaves per plants (39.78), rachis length (30.42 cm), number of floret/spikes (44.95), flower duration (19.93days), floret length (6.45cm) and floret diameter (4.21cm). From the interaction effect, the treatment combinationB2N1 [control (RDF) 200:200:200 NPK] recorded the lowest plant height (72.36 cm), leaf length (42.81 cm), leaf width (1.12 cm) and number of leaves per plants (43.00), rachis length (25.11cm), number of floret/spikes (37.00), flower duration (15.23days), floret length (5.04 cm) and floret diameter (3.02 cm).
RESUMO
The lotus (Nelumbo nucifera Gaertn.) is an aquatic plant grown extensively throughout Asia, mostly for commercial and ornamental purposes. It is mostly propagated via rhizomes. A potent and reproducible plant regeneration system for lotus has been developed in this work employing rhizomes, shoot tips from the mother plant, and mature and immature embryos collected from eighteen and twenty-six-day-old aseptically fertilized seed. Shoot induction, number of shoots, and length of roots were induced on Murashige and Skoog's (MS) basal medium supplemented with various concentrations of 6-Benzylaminopurine (BAP) mgL-1 (0.5, 1, 2, 3, 4). The response of the explant varied with different BAP concentrations. The most favorable outcomes were achieved using MS medium treated with 0.5 mgL-1 6-Benzylaminopurine (T2).
RESUMO
The objective of this experiment was to optimize the post-harvest handling techniques for four Ixora genotypes grown for loose flower purpose. The experiment was laid out in Factorial Completely Randomised Design (FCRD) with four genotypes namely viz., Red (Ixora casei-G1), Pink (I. chinensis-G2), Orange (I. coccinea-G3) and Yellow (I. chinensis-G4) and six post-harvest treatments replicated three times. Observations were made on the floral quality criteria as well as the physiological characters linked with flower post-harvest quality. The results revealed that among the genotypes, Red (I. casei-G1) proved superior with respect to quality parameters and physiological parameters followed by Pink (I. chinensis-G2). Among the post-harvest treatments, treating flower buds with 4% boric acid and storage under refrigeration @ 50C recorded superior results for all the quality parameters viz., freshness index, flower opening index, colour retention and shelf life and the physiological parameters viz., moisture content, relative water content and physiological loss in weight.