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Effect of Light Quality on Seedling Emergence, Growth and Photosynthesis of Rice  

김영광 (경남농업기술원)
강진호 (경상대학교 농업생명과학대학)
전병삼 (경상대학교 농업생명과학대학)
최진용 (경상대학교 농업생명과학대학)
김종수 (창녕제일고교)
Publication Information
KOREAN JOURNAL OF CROP SCIENCE / v.48, no.6, 2003 , pp. 460-464 More about this Journal
Abstract
White spunbonded fabrics has been utilized toy covering in rice seedling nursery. This study, therefore, was carried out to examine the effect of light quality on seedling emergence, growth, morphology, chlorophyll content and photosynthesis to get the information on the color of the fabrics. Blue, red and far-red lights were treated immediately after sowing seeds of three cultivars, Dongjinbyeo, Ilmibyeo and Daesanbyeo. Seedling emergence, growth and morphology, chlorophyll content and photosynthetic rate were measured. Seedling emergence rate of Dongjinbyeo and Daesanbyeo was low under far-red light treatment compared to those under blue and red light ones. Although the rate of Ilmibyeo was not different from three light treatments. Far-red light treatment showed similar response in plant height and leaf length, but yee light increased number of roots. Shoot and root dry weight was the highest in blue and red light treatments, respectively. Total dry weight, however, was the lowest under far-red light treatment. While chlorophyll content and photosynthetic rate of the three cultivars did not showed consistent response, those were the greatest under red light treatment, and were decreased in order of blue and far-red light treatment.
Keywords
rice; light treatment; seedling emergence; growth; morphology; chlorophyll; photosynthesis.;
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