摘要
据１９９５～１９９６年在陕西省长武县农业生态站田间隔水小区的试验结果，对黄土旱塬农田有限灌水条件下冬小麦的早发特性进行了研究。结果表明，在相同环境中，幼苗早发与灌水量有关，随灌水量增加，多数幼苗早发指标（ＬＡ、ＬＡＩ、ＳＬＲ、ＬＡＲ、ＲＧＲ等）趋于增加；水分胁迫限制叶片的扩张生长，增加叶片厚度，降低物质积累。在轻度水分胁迫下，小麦拔节期以后有补偿性生长反应。
The field experiment about action of water saving irrigation on seedling vigor of winter wheat on loess plateau was conducted in rain sheltered field plots during 1995￣1996. The study revealed that under the same environment, seedling vigor is associated with irrigation, most of the vigor index (LA, LAI, SLA, LAR, BM and RGR) values tended to increase with irrigating increase, water deficit limited the leaf enlargement, and increased the leaf thickness, declined drymatter accumulation . Compensatory growth reaction was found after shooting period under condition of light water deficit.
出处
《西北农业学报》
CAS
CSCD
1998年第3期20-22,共3页
Acta Agriculturae Boreali-occidentalis Sinica
基金
中国科学院"百人计划"项目
中国生态系统研究网络(CERN)资助
关键词
有限灌水
冬小麦
幼苗早发
黄土区
Irrigating limited
Seedling vigor
Winter wheat
Loess plateau
