摘要
为确定脱毒种薯费乌瑞它的最佳生产用种级别,对从高海拔一季作繁种区引进的脱毒种薯费乌瑞它不同级别种薯进行了种性退化对比试验。结果表明,原种二级种薯生物经济性状表现最优,抗病抗逆性强,种性退化减产幅度最小,大、中薯比例和商品率高,投资少,纯收益最高为28 463.9元/hm2,投产比1∶3.0。建议二季作区生产用种选用原种二级种薯。
A comparison test was done on degeneration of virus-free seed potatoes （Favorita） with differ- ent levels introduced from high-altitude single-cropping breeding areas, to determine the best potato level for production. The results showed that the original secondary seed potatoes had optimal bio-economic traits, strong resistance to diseases, smallest production cut by degradation, high proportion of large and medium potatoes, and high commodity rate. This kind of seed potatoes needed less investment, but gen- erated the highest net income,28 463.9 yuan/ha,with put into operation more than 1 ： 3.0. Thus,the o- riginal secondary seed potatoes are recommend in two-cropping areas.
出处
《河南农业科学》
CSCD
北大核心
2012年第8期49-51,共3页
Journal of Henan Agricultural Sciences
基金
现代农业技术体系专项资金(CARS-10)
关键词
脱毒马铃薯
种性退化
生物性状
经济产量
virus-free potato
degradation of seed potato trait
biological traits
economic output
