论文部分内容阅读
在使用热量积累方法的植物生长模式中生长的基础温度是一个重要因素。一模式中所用基础温良的误差可导致物候和产量的估计错误,尤其是在温度不高的地区。从生产出发,植株能在低温、高海拔、生长季短或春天较冷的地区生长是很重要的。数项研究已经发现一定作物的各种栽培品种具有相同的生长基础温度(Tb),如春麦(del Pozo等,1987)、珍珠粟(Garcia-Huidobro等,1982)和高粱(Kanemasu等,1975)。相反,Thomas和Miller(1979)发现高粱品种间的发芽基础温度有显著差异,变
The base temperature of growth in plant growth patterns using the heat accumulation method is an important factor. The basics of error used in a model can result in erroneous estimates of phenology and yield, especially in areas with low temperatures. From the point of view of production, it is important that the plant grows in the areas of low temperature, high altitude, short growing season or cold spring. Several studies have found that various cultivars of a given crop have the same base temperature of growth (Tb) as spring wheat (del Pozo et al., 1987), pearl millet (Garcia-Huidobro et al., 1982) and sorghum (Kanemasu et al., 1975) . In contrast, Thomas and Miller (1979) found significant differences in the germination temperature of sorghum varieties, varying