水稻導入品種의 生産力檢定에 關한 硏究 : 第1報 早期栽培下에서의 生産力檢定 [1] Productivity Trial on Early Season Culture = Studies on the Productivity Trial of Newly Introduced Rice Varieties

국문 초록 (Abstract)

本稻의 新導入品種의 生産力을 檢定하기 위하여 金南風, 八紘, Calady 40, 熙農1號의 4品種을 材料로 4點 5條植과 普通植의 栽植方法으로 早期栽培下에서의 各形質 特히 收量에 對한 調査硏究를 한 바 그 結果를 要約하면 다음과 같다.
1.分蘖數는 다른 品種에 比하여 Calady 40이 적으나 草長은 가장 길며, 또한 收量도 가장 많다.
2.出穗期 成熟期는 熙農1號가 가장 늦으며, Calady 40은 金南風 八紘보다 多少 늦으나, 큰 差가 보이지 아니 하였다.
3.穗數는 Calady 40이 적으나, 穗長이 가장 길며, 有效莖比率 等 其他 形質은 큰 差가 보이지 아니 하였다.
4.收量은 4點5條植에 있어서는 Calady 40은 八紘에 比하여 約40%, 普通植에 있어서는 約50%의 增收를 보였고 大體로 Calady 40은 多肥栽培에 適應하고 倒伏에도 强하나 出穗始부터 수전까지의 日數가 길고 病害에 對하여도 强한 便이었다. 以上의 結果에 依하면 Calady 40은 供試品種中 收量이 가장 많고 다른 品種과도 有意性도 보이고 多肥栽培 倒伏 等에도 强한 品種으로 보이므로 앞으로 栽培하여 볼 有望한 導入品種으로 認定되며 앞으로 密植에 依한 增收를 圖謀하는 問題等이 남은, 한 課題가 될 수 있을 것으로 믿는다.

다국어 초록 (Multilingual Abstract)

The experimental studies were conducted to evaluate the productivity of newly introduced rice varieties, Calady 40 and Hinong No.1, under the early season culture condition.
Seed sowing was conducted on March 15, and seedlings were transplanted on April 30, 1967. The split plot design with 3 replications were used and culture methods were employed as the customary culture method in this district.
The results are summarized as follows:
1.The tillers of Calady 40 were more than those of the other three varieties, the stem length of Calady 40 was tallest, and the yield index was also remarkably high than that of the other varieties.
2.The heading time and the ripening time of Hinong No.1 were latest of all varieties, however, those of Calady 40 were somewhat later than those of the other two recommended varieties, Palkyung and Kumnampung, in this province.
3.The numder of Panicles of Calady 40 was least, but the panicle length and the total yield of Calady 40 were largest compared with those of the other varieties.
4.Especially, the incresse of the yield index of Calady 40 was about 40-50% of rice production compared with the control variety, palkyung, which is the local leading rice variety.
For the more profitable production, other culture system and the plant density of plant spacing are to be studied in the future experimental studies.