播種期の違いがハダカムギ3品種の収量および品質に与える影響

日本作物学会紀事

辻田 泉²  大森 誉紀²  杉本 秀樹¹  木村 浩² 

[1] 愛媛大学大学院連合農学研究科;愛媛県農林水産研究所

关键词: Leaf total nitrogen content;    葉中全窒素含有量;    Naked barley;    ハダカムギ;    Pearled grain whiteness;    精麦白度;    Sowing time;    播種期;    Steel-grain rate;    硝子率;    Yield;    収量;   

DOI  :  10.1626/jcs.84.358

学科分类：农业科学（综合）

来源: Nihon Sakumotsu Gakkai / Crop Science Society of Japan

【 摘 要 】

The cultivar differences in the effects of early-sowing (late October) and late-sowing (mid December) on the yield and quality of naked barley (Hordeum vulgare var. nudum) were investigated using three cultivars (Manenboshi, Haruhimeboshi and Hinodehadaka). In early-sowing in which the plants grow in a short-day condition, the number of days from sowing to heading was increased and the yield was increased due to a vigorous initial growth and the large number of grains per unit area. However, the spike number and the number of grains per spike were decreased especially in Hinodehadaka and Haruhimeboshi due to the overluxuriant growth and cold injury in warm winter or late frost year. The total nitrogen content at anthesis in early-sowing increased resulting in increased steel-grain rate and reduced pearled grain whiteness. In late-sowing in which the plants grow in a long-day condition, the number of days from sowing to heading was decreased and the yield was decreased due to the small number of grain per unit area. These trends were marked in years with a cold winter or warm spring. Late-sowing increased grain protein content, steel-grain rate and decreased pearled grain whiteness. In addition, in late-sowing, rain in ripening period reduced the volume weight and grade of grain.

【 授权许可】

Unknown