Paper Details

Effect of zinc sulfate application in different growth stages on yield and yield components of sweet corn (Var. Chalenger)

Yunes Sajjadi Khasragi, Mehrdad Yarnia

DOI: https://dx.doi.org/10.12692/ijb/5.12.258-265

Int. J. Biosci. 5(12), 258-265. December, 2014. (PDF)

Abstract:

In order to assessment  of zinc application effect in  different growth  stages  on  yield and  yield  components of sweet corn (var. Chalenger), the experiment was performed in 2013 cultivation season at Agriculture College of Islamic Azad University, Tabriz Branch in form of randomized complete block design with three replications. Studied treatments were  included: control: non-use of zinc sulfate, (A) usage of zinc sulfate in soil, foliar application in: (B) stage of plants with 6-8 leaves, (C) tasselling, (D) grain filling stage, (B+C) stages of plants with 6-8 leaves and tasseling, (B+D) stages of plants with 6-8 leaves and grain filling, (B+C+D) stages of plants with 6-8 leaves, tasseling and grain filling, (A+B) soil using and foliar application at stages of plants with 6-8 leaves, (A+C) soil using and foliar application at stages of tasseling, (A+D) soil using and foliar application at stages of grain filling, (A+B+C+D) soil using and foliar application at stages of plants with 6-8 leaves, tasseling and grain filling in form of 5 per thousand using hand sprayer for foliar application and 25 kg/ha Zinc Sulfate for soil using. In this study the traits of ear fresh weight, ear yield, grain fresh weight per ear, grain yield, number of grain per ear, ear weight and 100 kernels weight were evaluated. The results demonstrated that zinc sulphate soil using and  foliar application in 6-8 leaves, tasseling and grain filling stages (A+B+C+D), soil using and foliar application in grain filling stage (A+D) increased grain yield about 34.33g. and 32.74g., respectively; as compared with control. These treatments increased grain yield about 24.24g. and 22.42g., respectively in comparison with control treatment. So, revenue increment per hectare by foliar application of this element can be significant.