Influence of foliar calcium application on hybrid maize yield and seed quality after storage
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Abstract
The objective of this experiment was to study the effect of foliar application of Calcium (Ca) on the yield of hybrid corn variety P3582. The experimental design was a randomized complete block design (RCBD) with 3 replications and conducted at farmer field Lampang province during December, 2018 to April, 2019. The treatments were 4 rates of calcium oxide (31%) which were 0, 1.0, 1.5 and 2.0 ml/L. The results showed that Ca concentrations had no effect on yield components, grain yield and calcium accumulation in the seeds. However, hybrid corn applied with 1.0 ml/L tended to express the highest seed yield (1,382.3 kg/rai). The obtained seed yields from the treatments were continued to sampling for seed storage quality experiment. Split-plots in completely randomized design (CRD) were used. The main plot was storage conditions at room temperature and 15 °C and the sub-plot were the seeds obtained from 4 rates of Ca application, keep data at 0, 2, 4 and 6 months. The results indicated that storage period and the interaction with rates of Ca affected on seed germination. While the seed vigor got result from the interaction between storage period, condition and rate of Ca with significantly. The seed obtained Ca at the rated of 1.0 ml/L and stored at 15 °C for 4 months still maintained their high seed vigor by showing significantly higher germination than the others. Calcium accumulation in the seed all treatments decreased from 0.75 to 0.13 g per 100 g-dry matter after 6 months storage.
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References
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