人爲突然變異 利用에 依한 小麥品種改良 Ⅰ. 小麥에 대한 γ 線과 EMS의 處理効果

• 영문명: Improvement of Wheat Varieties by Induced Mutation. Ⅰ. Effect of Gamma Ray and EMS on Growth Response in Wheat
• 발행기관: 한국육종학회
• 저자명: Kun Hyuk Im(任建爀) Shin Han Kwon(權臣漢) Cheong Yeol Sohn(孫淸烈) Jong Sun Eun(殷鍾旋)
• 간행물 정보: 『한국육종학회지』Vol.1 No.1, 21~28쪽, 전체 8쪽
• 주제분류: 농수해양 > 기타농수해양
• 파일형태: PDF
• 발행일자: 1969.12.30

국문 초록

本 實驗은 小麥品種 永光과 再光에 gamma線과 EMS를 處理하여 有用變異體를 選拔하는 過程 中에 얻은 M₁幼植物體의 生物學的 反應을 調査한 것이다. (1) 發芽率에 對한 gamma線 處理效果는 永光에서는 없었으나 再光은 線量에 比例하지는 않으나 有意性이 있었고, 成苗率은 兩 品種 모두 有意한 減少를 보였다. 그리고 EMS處理效果는 發芽率과 成苗率이 兩 品種에서 濃度增加에 따라 모두 有意性있게 減少하였다. (2) 幼苗 生存率에 있어서는 gamma線과 EMS處理效果가 없었다. (3) 幼根, 幼苗 그리고 本葉의 生長은 gamma線과 EMS處理에 對한 障害가 處理量 增加에 따라 直線的으로 增加하였다. (4) 品種에 따라 mutagen에 對한 生物學的 反應이 相異할 뿐 아니라 同一品種 內에서도 mutagen 種類에 따라서 差異를 보이고 있다.

영문 초록

As basic research to select useful mutants, this experiment was conducted to investigate biological response in M₁seedlings of wheat varieties, Yongkwang and Jaekwang, treated with gamma ray and EMS. On dormant seeds, gamma ray treatment was performed at the dosage of 5, 10, 15, 20, 30, 40 and 50 kr, and EMS at the concentration of 0.05, 0.075, 0.10, 0.15, 0.20, 0.25 and 0.30 mole. No effect in germination rate was found in variety Yongkwang by gamma ray irradiation, while significant effect was observed in Jaekwang, although it was not in proportion to the dosage. In emergence rate, significant decrease was shown in both varieties with the gamma ray treatment. As the EMS concentration increased, significant reduction in germination and emergence rate was observed in both varieties. Germination speed was not influenced with the gamma ray treatment, whereas it was slowed with the increase in EMS concentration. In both varieties, seedling survival rate 45 days after sowing was not affected by either gamma ray or EMS treatment. The growth of young roots, seedlings and young leaves was gradually inhibited with the increase of gamma ray dose and EMS concentration. On the basis of the above results, 50 per cent growth reduction dosage or concentration was determined in this study, and it was found that radiosensitivities of the wheat was dependent on varieties and mutagens.

목차

ABSTRACT

材料 및 方法

結果 및 考察

摘要

引用文獻