サトウキビ生育の極初期段階におけるバイオマス生産特性

日本作物学会紀事

上野 正実¹  川満 芳信¹  小宮 康明¹  福澤 康典¹ 

[1] 琉球大学農学部

关键词: Primary roots;    一次根;    Erianthus;    エリアンサス;    Sugarcane;    サトウキビ;    Leaf emergence rate;    出葉速度;    Initial growth;    初期生長;    Net assimilation rate;    純同化率;    Napier grass;    ネピアグラス;   

DOI  :  10.1626/jcs.77.54

学科分类：农业科学（综合）

来源: Nihon Sakumotsu Gakkai / Crop Science Society of Japan

【 摘 要 】

The growth of sugarcane plants at the initial stage is slower than that of other C4 plants. The improvement of initial growth is very important to obtain a high sugar content and high cane yield in sugarcane. In the present study, we examined the factors affecting the growth at the initial growth stage in Saccharum species (Saccharum spp. Hybrid, S. edule) and a related species (Erianthus spp., Pennisetum purpureum). The growth characteristics of the plants at 2 months after germination were compared with those at the 7th leaf growth stage. In the two-month-old plants, the shoot dry matter, leaf area and the number of shoot roots were larger in KRSp93-30 than those in the other species. However, at the 7th leaf stage, the number of shoot roots in KRSp93-30 were almost similar to those in other species. Efficient growth of KRSp93-30 at the initial stage may be attributed to a high leaf emergence rate and high net assimilation rate.

【 授权许可】

Unknown