STUDIES ON DIFFERENT CONCENTRATIONS OF IBA AS POWDER AND LANOLIN PASTE FORMULATION ON SURVIVAL AND GROWTH OF AIR LAYERS IN GUAVA (Psidium guajava L.)
Loading...
Date
2021
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Indira Gandhi Krishi Vishwavidyalaya, Raipur
Abstract
The present investigation “Studies on different concentrations of IBA as powder and lanolin paste formulation on survival and growth of air layers in guava (Psidium guajava L.)” was conducted at PFDC (Precision Farming Development Centre), College of Agriculture, Indira Gandhi Krishi Vishwavidyalaya, Raipur (C.G.) during the year September, 2020 – March, 2021. The experiment was conducted in RBD (Randomized Block Design) with 11 treatments and 3 replications.
The experiment was carried out with different concentrations and method of application of IBA (Plant growth regulator) with 11 treatments namely, No IBA treatment (T0), IBA 1500 ppm as powder form (T1), IBA 2000 ppm as powder form (T2), IBA 2500 ppm as powder form (T3), IBA 3000 ppm as powder form (T4), IBA 3500 ppm as powder form (T5), IBA 1500 ppm as lanolin paste (T6), IBA 2000 ppm as lanolin paste (T7), IBA 2500 ppm as lanolin paste (T8), IBA 3000 ppm as lanolin paste (T9) and IBA 3500 ppm as lanolin paste (T10) with 3 replications.
The results revealed that the air layers prepared by using of IBA 3500 ppm as lanolin paste (T10) promoted highest no. of primary and secondary roots, length of primary and secondary roots, fresh and dry roots weight, no. of shoots, length of shoots and no. of leaves and also increased survival rate (%) each air layers followed by IBA 3000 ppm as lanolin paste (T9), IBA 3500 ppm as powder form (T5) and IBA 3000 ppm as powder form (T4). The lowest no. of primary and secondary roots, length of primary and secondary roots, fresh and dry roots weight, no. of shoots, length of shoots and no. of leaves and survival rate (%) each air layers were observed in treatment T0 (i.e. control).
Among the method of application of IBA (plant growth regulator), the lanolin paste method is the best as compared to the powder method for higher root and shoot growth and survival percentage (%) of guava air layering.