论文部分内容阅读
1985~1988年在重庆进行了不同类型大麦、小麦周年播种及不同生态型大麦品种春、秋播种。试验表明,大麦早熟优势是最小营养生长期(播种—伸长)短,积温少,叶龄小,类型间差异小。二棱—三棱是大麦低温春化敏感期。春化反应弱的品种天数N与均温T呈负指数关系;强春化反应品种则相反。三联期是大麦通过春化阶段,幼穗分化开始的形态指标;而小麦是二棱期。三联—药隔是光照反应敏感期。但日长反应弱于小麦,类型间差异小。拔节后生育阶段基本受制于温度,但品种间差异较大,用相对温度效率可较好地反映这一差异。
From 1985 to 1988, different types of barley and wheat were sown in Chongqing and sown in spring and autumn with different ecological barley varieties. The results showed that the early maturity of barley is the shortest period of vegetative growth (sowing - elongation), the accumulated temperature is small, the leaf age is small, and the differences among the types are small. Two edges - Triangles is the barley cold vernalization sensitive period. The vernalization reaction was weak with the number of days N and average temperature T showed a negative exponential relationship; strong vernalization of the opposite species. Triad is the morphological index of barley through the vernalization stage, spike differentiation began; and wheat is two-ridge period. Triple - drug interval is light sensitive period. However, the Japanese reaction is weaker than wheat, the type of small differences. The stage of post-jointing growth was basically controlled by temperature, but there was great difference among varieties. The relative temperature efficiency could better reflect this difference.