畓裏作麥의 濕害에 關한 硏究 = Studies on the excess-moisture injury of barley in paddy field

국문 초록 (Abstract)

畓裏作麥의 濕害에 對하여 1977年 10月부터 1978年6月에 걸쳐 滯水의 時期 및 處理의 回數가 畓裏作麥의 濕害에 미치는 影響을 究明해 보고저 幼苗期와 出穗期 사이에 滯水處理回數를 5∼1回에 걸치는 所謂 反覆處理法에 依한 POT試驗을 實施하였는데 그 結果를 要約하여 보면 다음과 같다.
1. 滯水處理區別成積에 依하면 滯水處理의 回數가 많을수록 地上部와 地下部의 發育을 顯著하게 抑制되고 稔實狀態는 不良하여 收量은 대개 減少되는 傾向이 뚜렷하였는바 總粒重에 있어 第1區(幼苗期以數5回處理)는 無處理區의 11%, 第2區(分葉取盛以後 4回處理)는 22%, 第3區(幼穗形成期以後 3回處理)는 32%, 第4區(伸長期以後 2回處理)는 49%, 第5區(出穗期 1回處理)는 74%에 不過하였다. 特히 第 1,2,3,區에 있어서는 品質에 있어서도 食用價値를 認定할 수 없을 정도로 不良하였다.
2. 滯水處理期別로 分析해 본 成積에 依하면 伸長期와 出穗期의 影響은 地上部(特히 千粒重과 總粒重) 및 地下部(特히 根重)에다 極甚하게 나타났는데 이는 大谷(1968), 山崎(1968)諸氏의 實驗結果와 一致 되었다고 본다.
이제 總粒重에 있어 無處理區에 對한 減收率을 보면 出穗期26%, 伸長期 25%, 幼穗形成期 17%, 幼苗期11%, 分葉最盛期 10%의 順이었다.
3. 根重과 千粒重 및 穗數와 總粒數와의 密接한 關係가 設定되어 그의 曲綠은 거의 平行的이었다.
4. 滯水되지 않았던 地表部位 및 湛水部位에서는 下部位보다 上部位에 있어 支根의 發達狀態와 根의 分布伸長狀態가 大體로 좋았다.
5. 以上 結果와 無處理區의 根伸長發達程度로 보아 畓裏作麥裁培의 濕害對策에 있어서 種子播種面이 排水溝湛水位보다 적어도 40㎝쯤 높게 되도록 作畦하는 同時에 特히 生育中 後期에 濕害가 크게 나타나는 事實로 보아 排水構深度의 繼續維對策을 또한 施肥技術에 있어서도 追肥重点과 葉面施肥法을 請究할 必要가 있다고 본다.

다국어 초록 (Multilingual Abstract)

Excess-moisture injury has long been recognized as one of main factors which give remerkable influence upon the growth and yield of barley as a winter crops of submerged paddy fields. This studies were conducted in order to obtain some information on the response to excess moisture injury in winter barley which were cultured in submerged paddy field. Some experimental result in these studies from October 1977 to Jun 1978 are summerized as follow
(1) The more frequently submerged, the more inhibited its growth extremely and the seeds bearing state was poor it was main causes to reduce the yield of barley Especially, in the first plot, (five times submerged after infant-nursery-bed period) the second plot (four times submerged after tillering-peak period and the third plot(three times submerged after very-young-head forming period) were extremely injured by excess-moisture.
The yield was decreased 99 percent in first plot, 88 percent in second plot, 68 percent in third plot, 51 percent in fourth plot, 26 percent in fifth plot them thoes of control.
The quality of barley was extraordinary poor condition which unable to eat.
(2) The most sensible period to decrease the yields of barley by submerged conditions were especially in expensive growth period and head sprouting period. This result were correspond with the study of Yamesaki (1968) and Ohdanic (1968) the decreasing percentage of the eight to total grain were 74 percent in head sprouting period, 75 percent in expensive growth period, 83 percent in very-young-head forming period, 99 percent in tilling-peak-period.
(3) It may recognized that there were cause correlations between roots weight and a thousand weight of grain ear number and total number of grain.
(4) Root system were normally developed in the position of the earth surface in nonsubmerged plot and on the upper part than the lower part in submerged plot.
(5) in contrast with above results and root system in nonsubmerged plot may suggested that seed sowing portion may situated above 40cm height at least from the surface of submerged portion of the draining-ditch and in the and in the fact of most sensible period by excess-moisture injury was latter term of growth, writer think that it is necessary to maintain the depth of draining-ditch and additional fertilizer after manuring, upper layer placement and the method of dressing.

목차 (Table of Contents)

• Ⅰ. 緖論
• Ⅱ. 硏究史
• Ⅲ. 試驗材料 및 方法
• Ⅳ. 試驗成績
• Ⅴ. 考察
• Ⅵ. 摘要
• Ⅶ. 參考文獻
• Ⅷ. 附圖說明
• Ⅸ. 英文抄錄