四川烟区不同海拔高度温湿度对白肋烟生育期的影响  

Effect of Temperature and Humidity on Burley Growing Period in Dazhou Tobacco-growing Areas at Diffierent Altitudes

作　　者：沈广材[1] 史宏志[1] 杨兴有[2] 周开旭 张定贵[2] 侯涛[2] 

机构地区：[1]河南农业大学国家烟草栽培生理生化研究基地,河南郑州450002 [2]四川省达州烟草科研所,四川达州635000

出　　处：《西南农业学报》2009年第3期589-593,共5页Southwest China Journal of Agricultural Sciences

基　　金：四川省烟草公司科技项目(200703005)

摘　　要：在四川达州研究了不同海拔高度(700,1000,1300 m)白肋烟中熟品种达白1号和早熟品种KY14×L8各生育期的温湿度变化以及所需有效积温。结果表明,随着海拔高度的升高,两品种生育期延长,生育期的平均温度降低,而相对湿度增加。随着生育期的推进,平均温度呈增加的趋势,伸根期相对湿度低于旺长期和成熟期,旺长期和成熟期相对湿度差异较小。不同海拔高度每日气温极值出现时间较为接近,烟田最低温出现在6点,最高温出现在15点左右;相对湿度最大值在6点左右出现,最小值在15点左右出现。随着海拔高度的增加,两品种各生育期>10℃的有效积温多呈逐渐减少趋势,早熟品KY14×L8伸根期所需有效积温多于中熟品种达白1号,旺长期两品种较为接近,成熟期则为KY14×L8显著少于达白1号。Three altitudes （700,1000,1300 m） were selected to investigate the changes in temperature and humidity during growth periods of hurley variety Da Bai 1 （ medium maturity） and KY14× L8 （ early maturity） in Dazhou of Siehuan . The result showed that the growth perieds of two varieties beeame lengthened with the increase of altitude; while the average temperature during growth period decreased, and the relative humidity increased with the increase of altitute. As plants grew ,the average temperature increased. At early growing stage ,the relative humidity is lower than those of at rapid growing stage and maturing stage,and there was no signifieant difference in relative humidity between rapid growing stage and maturing stage. The minimum and maximum air temperature occurred at 6：00 and 15：00 at all the 3 altitudes,and the minimum and maximum relative humidity also eeeurred at 6：00 and 15：00 at the 3 altitudes. With the increase of altitute, the effective accumulated temperature at almost all the stages of two varieties gradually decreased. The effective accumulated temperature required for root spreading stage of KY14 × L8 was more than that for Dabai 1 ; that for rapid growing stage was no significant difference between the 2 varie- ties; while that for maturing stage,KY14 × L8 required much less effective accumulated temperatures than Dabai 1

关 键 词：白肋烟 温度 湿度 有效积温 海拔 

分 类 号：S572[农业科学—烟草工业]