• Title/Summary/Keyword: Spikelet positions

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Characteristics of Awns and Grains on Different Spikelet Positions in Barley (보리 이삭의 소수 위치에 따른 까락과 낟알의 특성)

  • 이강세;오양호
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.41 no.1
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    • pp.77-85
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    • 1996
  • To obtain basic information for characteristics of naked barley cultivars, awn length and weight, kernel weight along spikelet positions of some cultivars bred in Korea were investigated. Awn length and weight of third to fifth spikelet, and kernel weight of second to fourth spikelet from spike tip were not different from each mean value for total of spike. From the spike base, awn of third to fourth spikelet was longest and heaviest, and kernel weight of fifth to sixth spikelet was heaviest. Value for awn length, awn weight, and kernel weight of lateral row florets was lower 13 to 26%, 26 to 41%, and 18 to 25%, respectively than one for those of central row floret. Difference for awn length and weight between central and lateral row in nami type cultivars compared to uzu type cultivars was small. In the ratio of weight/length of awn, awn of uzu type cultivars was thicker than that of nami type cultivars, and awn of central row was thicker than those of lateral rows. Kernel weight was linearly related to awn weight. When one spike was divided into three parts, awn length and weight of low part were not different from those of central part, but were longer and heavier than those of upper part. The order of kernel weight was central$\geq$low>upper part.

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