早熟粳稻品种新90-3的特性与栽培技术

Characteristics and Cultivation Technology of Early Maturing Japonica Rice Variety Xin 90-3

新90-3是河北省农林科学院滨海农业研究所选育的早熟粳稻品种。该品种根系发达,高抗倒伏,分蘖力较弱,株高105 cm,穗粒数138粒,千粒重28.7 g,河北省水稻区域试验平均产量为8 767.5 kg/hm2,抗稻瘟病,多数米质指标达到国家优质1～2级米标准,在冀东稻区全生育期160 d,适宜河北省长城以南稻区在缺水条件下晚播种晚插秧节水栽培。

The early maturing japonica rice variety Xin 90-3 was bred by the Institute of Coastal Agriculture,Hebei Academy of Agriculture and Forestry Sciences.It had the characteristics of developed root system,high lodging resistance,weak tillering ability,and blast resistance.The plant height was 105 cm,the grain number per spike was 138,and 1 000-grain weight was 28.7 g.The average yield was 8 767.5 kg/hm2 in the regional test in Hebei.The grain quality reached 1 to 2 level of the national standard of high-quality rice.The whole growth period was 160 days in Eastern Hebei.It was suitable for the water-saving cultivation of late sowing and transplanting under water stress conditions in the south of the Great Wall in Hebei.