重庆麦类作物主要生态气候灾害类型分析

ANALYSIS OF THE TYPES OF PRIMARY ECO-CLIMATIC DAMAGES OF WHEAT AND BARLEY IN CHONGQING

对重庆麦类作物各生育期气温、日照和降水等主要生态气候条件与产量的关系研究表明，苗期湿害、花期冷害、抽穗至乳熟期阴雨寡照和灌浆至成熟期高温逼熟是本地区麦类作物高产优质的主要生态气候制约因素。

Astatistical analysis of the relationships between yield of wheat and barley and the primary eco-climatic conditions(air temperature,sunshine,precipitation and others)at different growthstages shows that the primary limiting eco-climatic factors forattain ing top quality and high yieldof wheat and barley in the vinicity of Chongqing are damages caused by waterlogging at the seedlingstage,chilling injury in flowering period,frequent rain and scany sunshine from heading to milkingstage and accelerated maturation resulting from high temperature from milking to maturing stages.