Effect of Different Levels of Nano Boron and Nano Zinc on Plant Growth and Establishment of Passion Fruit (Passiflora edulis Sims) under Prayagraj Agro-climatic Condition

The experiment was carried out at Department of Horticulture, Naini Agricultural Institute, SHUATS, Prayagraj during the year 2023-24.The experiment was laid out in Randomized Block Design comprising of 10 treatments vizT0 Control, T1 Nano Boron @ 1ppm (Foliar application), T2 Nano Boron @ 2ppm (Foliar application), T3 Nano Boron @ 3ppm (Foliar application), T4 Nano Zinc @ 1ppm (Foliar application), T5 Nano Zinc @ 2ppm (Foliar application), T6 Nano Zinc @ 3ppm (Foliar application), T7 Nano Boron 1ppm + Nano Zinc @ 2ppm (Foliar application), T8 Nano Boron 2ppm + Nano Zinc @ 2ppm (Foliar application), and T9 Nano Boron 3ppm + Nano Zinc @ 2ppm (Foliar application) with three replications. Every replication's treatments were distributed at random.The Observations were recorded as per the Vegetative growth parameters, survival (%) and chlorophyll content (SPAD value). The results reveal that the treatment T9 Nano Boron 3ppm + Nano Zinc @ 3ppm (Foliar application) was found to be the most suitable over all the other treatments in relation to vegetative growth parameters, survival (%) and chlorophyll content (SPAD value). The lowest cost of Cultivation was found in Treatment T1 which was 54,191.588/-