【摘要】 通过在低纬高原地区分期播种试验分析优质稻“云恢290”各品质的变异,得出:“云恢290”各品质指标的气候敏感性不一致。通过多时段多气候因子多种曲线形式的拟合,找出了对气候影响最敏感型品质指标的关键气候因子与关键时段,总体上看,对稻米品质有影响的时段为齐穗前10d-齐穗后30d,尤以齐穗-齐穗后30d的气象条件影响大;关键气象因子有平均气温、日照时数、气温日较差和雨量。更多还原

【Abstract】 The data from date test of high quality rice variety Yunhui 290 in the lower latitude plateau of Yunnan Province was used to analyze the rice quality and key climate factors which influence the rice quality.It was concluded that rice quality was influenced by climate differently.In general,the key period influencing the rice quality was from the 10 days before full heading to 30 days after full heading.Especially the meteorological factors during full heading and 30 days after full heading had biggest influence in rice quality.The key meteorological factors influencing the rice quality were daily mean temperature,sunshine duration,daily range of temperature and precipitation.更多还原