葉齢の増加に伴うオオムギの耐雪性の変化

日本作物学会紀事

竹中 重仁¹  湯川 智行¹  三浦 重典¹  渡邊 好昭¹ 

[1] 農業技術研究機構

关键词: Barley;    オオムギ;    Snow injury;    雪害;    Resistance;    抵抗性;    Snow mold;    雪腐病;    Plant age;    葉齢;   

DOI  :  10.1626/jcs.72.192

学科分类：农业科学（综合）

来源: Nihon Sakumotsu Gakkai / Crop Science Society of Japan

【 摘 要 】

This study researched how the age of winter barley affects the plant’s resistance to snow injury. Two experiments were conducted for the study. The first experiment focused on the change in resistance to snow rot disease, and the second experiment tested plant viability under cold, dark, and wet conditions. The resistance of the third-leaf stage plant to snow rot disease was higher than that of the first- or second-leaf stage plant. The penetration and development of snow rot disease were restricted to the young leaf blade of the old plants. The high resistance of the young leaf might be one of the reasons for the high resistance observed in old plants. The viability of the old plants under cold, dark, and wet conditions was higher than that of young plants. The resistance to snow rot disease and the viability under cold, dark, and wet conditions of the plant in the first-leaf unfolded stage were higher than that of the plant in the first-leaf stage. These results demonstrat that both resistance to snow rot disease and viability under cold, dark, and wet conditions are causes for change in resistance to snow injury with plant age.

【 授权许可】

Unknown