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KMID : 0903519840270030169
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Journal of the Korean Society of Agricultural Chemistry and Biotechnology
1984 Volume.27 No. 3 p.169 ~ p.173
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Effect of Harvesting Time on the Quality of Malting Barley
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정태영/Chung, Tae Young
손태화/장현세/박무언/Sohn, Tae Hwa/Chang, Hyun Sae/Park, Moo Eon
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Abstract
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In order to determine the optimum harvesting time based on grain filling and physico-chemical qualities for malting, three cultivars were harvested at every five days from 30th day after heading date at two experimental sites in the southern part of Korea. Starch accumulation and kernel weight increment were remarkable until 45th day after heading, but negligible after that. Content of ash, crude protein and polyphenolics and α-amylase activity decreased with maturation of grains and reached to the lowest value at 45th day after heading date. Germinative energy and capacity were good enough for malting from 40th day after heading date. The optimum harvesting time were estimated at 45th day after heading date in the increment of starch accumulation and kernel weight. At this time matured and immatured kernels were in the ratio 93 : 7. However, it is estimated that early harvesting time was at 40th day after heading date.
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