PJB-2017-500
IMPACT OF LOW-INTERMITTENT IRRIGATION AND ZINC SULPHATE SPRAYING ON CANNABLE GRAIN YIELD AND GRAIN ENRICHMENT OF SWEET CORN
babak peykarestan
Abstract
An experiment in split plot factorial in the form of randomized complete blocks design with three replications was carried out at Research Farm of Agricultural Faculty of Islamic Azad University of Arak in the years 2014 and 2015 on two sweet corn hybrids including Chase and Challenger in terms of water deficit and spraying with zinc compounds. Irrigation patterns treatment in the main plots including complete irrigation farm or all furrows (control), fixed every other furrow irrigation and alternating furrows irrigation in sub-plots, spraying treatment with zinc including no spraying (control), application of drop Zinc sulfate (two per thousand liters), application of fast zinc sulfate (two per thousand liters) and two hybrids of sweet and super sweet corn were placed in factorial form. The results demonstrated the impact of irrigation models, zinc spraying, hybrid and their interaction on the grain yield and grain content was significant at the 1% probablity level. The highest proline rate was observed in fixed every other furrow irrigation method with 30.21 mg/g that had significant difference of 39.86% compared to the control irrigation method with rate of 21.60 mg/g. The highest zinc rate in grain in treatment application of fast zinc was shown to be 28.50 mg/g rate while this rate decrease in 18.09mg/g in treatment of non-application of zinc which showed 57.54% decline. The use of intermittent irrigation and spraying with zinc fast is recommended in the production of Challenger sweet corn hybrid based on the research results, in terms of low water.
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