松嫩平原盐碱土盐碱胁迫对水稻分蘖及产量的影响  

Effect of Salinity-Alkalinity Stress on Tillering and Yield of Rice

作　　者：孙彤[1] 杜震宇[2] 张瑞珍[3] 孟繁霞[2] 杨晶[2] 马景勇[2] 

机构地区：[1]吉林农业大学中药材学院,长春130118 [2]吉林农业大学农学院,长春130118 [3]四川省草原工作总站,成都610041

出　　处：《吉林农业大学学报》2006年第6期597-600,605,共5页Journal of Jilin Agricultural University

基　　金：长春市农业创新计划项目(长科合字第01-052N12号)

摘　　要：采用盆栽法研究了不同盐碱度对水稻分蘖数、分蘖前期和分蘖末期干物质积累状况及产量的影响。结果表明:盐碱胁迫推迟了一次分蘖的时间,降低了水稻分蘖数和有效分蘖数约50%。随盐碱胁迫加强,水稻干物质积累的变化趋势为轻度>对照>中度>重度,产量的变化趋势为对照>轻度>中度>重度。By pot growing method, effects of different salinity-alkalinity complex stress on tiller number and dry matter accumulation of rice were studied. The results showed that salinity-alkalinity stress postponed the beginning time of the first tiller, reduced by 50% of tiller number and effective tiller number. With the development of salinity-alkalinity stress , the sequence of dry matter accumulation was S3 〉 S0 〉 S2 〉 S1, the sequence of yield was S0 〉 S3 〉 S2 〉 S1.

关 键 词：盐碱胁迫 水稻 分蘖 

分 类 号：S511.01[农业科学—作物学]