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Ethylene Production and Internal Structure of Developing Maize Seeds  

Lee Suk-Soon (School of Biological Sciences, College of Natural Resources, Yeungnam Univ.)
Seo Jung-Moon (School of Biological Sciences, College of Natural Resources, Yeungnam Univ.)
Hong Seung-Beom (Dept. of Oriental Medicine Resources, Asia University)
Publication Information
KOREAN JOURNAL OF CROP SCIENCE / v.51, no.5, 2006 , pp. 425-431 More about this Journal
Abstract
In order to investigate the effects of ethylene on the seed development of three corn types (dent, sweet, and super sweet corns), aminoethoxyvinyl glycine (AVG) and silver thiosulfate (STS) and ethephon (2-chloroethylphosphonic acid, CEPA) were applied either on whole plants or shanks of ears at 9 and 21 days after silking. Ethylene production of developing super sweet corn seeds was much higher than those of sweet and dent corns. The cavity in the endosperm tissues of the super sweet corn started earlier and endosperm was collapsed more severely compared to those of sweet and dent corns. Ethylene production seemed to be related to the death of endosperm cells to form a cavity. Application of AVG and STS reduced ethylene production and delayed cavity formation in endosperm of super sweet corn seeds, while CEPA increased ethylene production and enhanced the time of cavity formation. AVG and STS increased 100-seed weight, while CEPA decreased.
Keywords
ethylene; seed internal structure; dent corn; sweet corn; super sweet com; aminoethoxyvinyl glycine(AVG); silver thiosulfate (STS); ethephon (CEPA);
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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