Impact of Zinc Fertilization on Tomato (Solanumlycopersicum L.) Yield, Zinc use Efficiency, Growth and Quality Parameters in Eastern Dry Zone(EDZ) Soils of Karnataka, India

Abstract

The present investigation was carried out with one green house experiment at the University of Agricultural Sciences, Bangalore during 2016-17 and two field experiments during 2017-18 at tomato growing soils of eastern dry zone (EDZ), Karnataka to assess the impact of zinc on tomato. Results suggested that all parameters were significantly improved in both deficient and sufficient soils upon the addition of external zinc along with RDF. The treatment T9 in high zinc soils significantly improved the quality parameters like TSS (6.00⁰Brix), titratable acidity (0.39%), Vitamin C (53.71 mg 100 g-1), lycopene (13.24 mg 100 g-1) and shelf life (24 days) when compared with other treatments. The zinc uptake and zinc use efficiency was recorded higher in T9 as 238.91 g ha-1 and 2.47% which is more than that of RDF. But in low zinc soils treatment T10 significantly improved the quality parameters like TSS (5.80⁰Brix) which is on par with T9 (5.90⁰Brix), titratableacidity (0.47%), Vitamin C (55.24 mg 100 g-1), lycopene (13.30 mg 100 g-1) and shelf life (23 days).The zinc uptake and zinc use efficiency was recorded higher in T10as 291.53 g ha-1 and 2.64% which is more than that of RDF.

Effect of Zinc and Boron on Yield, Quality and Nutritional Value of Broccoli Head (Brassica oleracea var. italica) with Different Application Methods in Red and Lateritic Soils of Birbhum District, India

“…The findings are similar to those reported by Prasad et al [15] and Parmar et al [16] in their experiment on effect of micronutrient in broccoli where plant growth was influenced by combined application of zinc and boron. Quratul et al [17] found similar response in his experiment where 0.5% application of zinc sulphate and borax increased plant height.…”

Effect of Foliar Spraying of Nano Zno on Qualitative and Physical Parameters of Tomato Grown in Polybags

“…The reason for increasing the firmness with the application of Zn might be due to it stimulates carbohydrates, proteins, DNA and RNA formation. Zinc plays an important role in synthesis of cell walls which helps to withstand prolonged periods without desiccation of middle lamella, as a result, improves resistance power against microbial activities, thereby decreasing the physiological loss in weight, increasing the shelf life and firmness Mishra et al [8] Ullah et al [12] Zinc also helps to overcome heat stress as a result the surface skin of fruit will not be distorted easily as a result improves the post-harvest storage quality [5]. These results were found to be in line with those reported by Li et al [13] in apple, Xu et al [14] in carrot and Prasad et al [5] in tomato [15].…”

Exogenous Zinc Application and Generative Traits of Three Local Shallot Varieties

“…In addition, Zn has various other functional roles in plants, such as cytochrome synthesis, influencing dehydrogenase activity, and playing an essential role in forming chlorophyll (Kumar et al 2021). Zn deficiency decreases photosynthesis by 50-70% (Rudani et al 2018), inhibits nitrogen metabolism, reduces flowering and fruit development, extends the growth period, and reduces plant quality and yield (Prasad and Subbarayappa 2018). The research results by Zaman et al (2019) reported that the application of Zn significantly affected the number of flowers in onion plants.…”