摘要
针对我国东北地区寒地气候条件下水稻产量和品质受早霜冻影响问题 ,用盆栽水稻在人工霜冻实验室进行模拟水稻霜冻害试验。初步结果是 :水稻抽穗后霜冻处理时间越早 ,对水稻产量影响越大 ,并建立了水稻受霜冻害减产预测模型 ;稻米品质虽然也受影响 ,但各指标受影响的程度不同 ,其中整精米率和垩白受影响程度较大 ;对食味品质虽有不良影响 ,但影响程度较小。
The influence of early frost and freezing on yield and quality of rice was determined for the climate conditions in the frigid regions of Northeastern China, by simulated pot experiments in the frost and freezing chamber. The results showed that the earlier the frost and freezing treatment after heading period of rice carried out, the greater was the influence on rice yield. On these grounds a regression equation for predicting rice yield decrease due to frost was established. It was clear that early frost had a great effect upon total rate of high milled rice and chalkiness, and a weak negative effect on taste quality.
出处
《中国农业气象》
CSCD
2003年第1期25-27,共3页
Chinese Journal of Agrometeorology
基金
黑龙江省科技厅科技攻关项目 (1997~ 2 0 0 1年 )
关键词
霜冻害
水稻
稻米品质
产量
预测模型
Frost and freezing damage
Rice
Quality of rice
Regression equation
Northeastern China
