山东省年际与地区间气象因素变化与高产小麦产量形成的研究

摘要

Effects of climatic variation among years on growth of high- yielding winter wheat (6750 ～10500kg per hectare) were studied between different regions in Shandong Province, taken Jinan and Longkou as an example. The results indicated that the quantity and quality of population building for different spike type varieties was closely related to the climatic factors. Population building of big spike type variety was mainly controlled by light and temperature before winter, and grain number per spike and 1000 - grain weight were dominated by light and temperature after winter. The effects of light and temperature on the multiple spike winter wheat were expressed by influencing percentage of earbearing tiller, with little effects on the grain number and 1000 - grain weight.%以济南和龙口为例，对我省不同地区和年际间的气候变化对高产小麦(666.7m2产450～700kg)生长发育的影响进行了分析研究，结果表明不同穗型高产小麦群体建成的数量和质量与其所处的光温资源条件有关，大穗型品种的群体数量建成主要受冬前光温资源的影响，越冬后的光温资源主要影响其穗粒数和千粒重；光温资源对多穗型品种的效应则主要通过单株成穗率的变化进行表达，而对穗粒数和千粒重的影响不显著。