组培中粳8715特征特性及高产栽培技术

早熟中粳８７１５，采用生物工程技术，选取当选晚２号适宜时期的健壮幼穗，进行体细胞培养，再生稻株，经多次田间试验、示范种植选育而成。该稻性状稳定，株形理想，生长青秀，光合效率高。根系健壮发达、不早衰。穗大粒多，熟期整齐，成熟时秆青籽黄，熟相佳。品质优，综合抗性强。全生育期１３３天。亩产４５０ｋｇ以上。适宜沿淮及淮北和江淮之间种植。

Studies on characters and high-yield technique of medium japonica rice line 8715 from tissue culture

Bymeans of biotechnology,the medium japonica rice line 8715 was bred from the plant regeneration of the young spikes of Dan g xuanwan 2. Its Its main characters were as follows:The genetic feature was stable,the plant type was fine,the photosynthetic efficiency was high.It had strong roots,big spikes,many grains,good quality and wide resistance to diseases.The whole growth period was 133 days and its average yield was above 450 kg/mu.It was suitable for planting in Yanhuai,Huaibei and Jianghuai areas.