한국작물학회지 (KOREAN JOURNAL OF CROP SCIENCE)

  • 제50권5호
  • /
  • Pages.332-335
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  • 2005
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  • 0252-9777(pISSN)
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  • 2287-8432(eISSN)
한국작물학회 (The Korean Society of Crop Science)
권호 표지

Phenological Changes of Wheat Cultivars with Plant Type and Plant Spacing

  • 발행 : 2005.12.01
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초록

The three Korean wheat cultivars with different plant types; the erect, the middle and the creeping growth habit, were studied for their utilization to solar radiation, temperature changes on the furrow and to provide optimum planting space for producing the high yield in 2003. The average solar radiation rate was lowest for creeping type ($39.2\%$) and highest for erect type ($75.8\%$) The correlation coefficient between the coverage rate and the solar transmission rate was r = 0.8624 which was significant at $5\%$ level. The relative growth of the plant, tiller rate and leaf size was increased in the erect and the middle type at lower plant density, while no change on plant growth at creeping type regardless of plant density. The increase of leaf size in the lower plant density was due to longer flag and the first leaf than those of other plant types. The temperature on the furrow of growing plants was changed by the canopy. The changes in temperature pattern on the furrow according to plant types during winter season was different compared to the non plant ground. The temperature of the nonplant ground was the lowest due to solar reduction increasing the amount of cool air flowing in the furrow.

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참고문헌

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