克拜地区早熟马铃薯品系筛选

Screening of Early-Maturing Potato Strains in Kebai Area

为了筛选出高产、优质、早熟的马铃薯品系,对黑龙江省农业科学院克山分院自育的9个品系进行了生育期、田间植株性状、块茎性状、淀粉含量及产量的综合评价。结果表明,9个品系中筛选出2个早熟品系,生育期77~78 d,半直立株型。其中克202015-14花冠紫色,块茎长椭圆形,红皮黄肉,芽眼浅,产量为3 393.36 kg·(667 m^(2))^(-1),淀粉含量15.22 g·(100 g)^(-1)。克202015-122花冠白色,块茎椭圆形,黄皮黄肉,芽眼中等,产量为3 491.75 kg·(667 m^(2))^(-1),淀粉含量9.81 g·(100 g)^(-1)。克202015-76、克202015-38、克202015-69和克202015-135综合性状较好,推荐进入下一年早熟、中熟品系筛选试验。其余3个品系由于产量或熟期未达到要求,后续试验中进行淘汰处理。

In order to screen for high-yield,high-quality,and early maturing potato strains,a comprehensive evaluation was conducted on the growth period,field plant traits,tuber traits,starch content,and yield of 9 potato strains self cultivated by Keshan Branch of Heilongjiang Academy of Agricultural Sciences.The results showed that two early maturing lines with a growth period of 77-78 days and a semi upright plant type were selected from 9 strains.Ke 20215-14 had purple corollas,long elliptical tubers,red skin and yellow flesh,and shallow bud eyes.Its yield was 3393.36 kg·(667 m^(2))^(-1),and its starch content was 15.22 g·(100 g)^(-1).Ke 20215-122 had white corollas,elliptical tubers,yellow skin and flesh,and moderate bud eyes.Its yield was 3491.75 kg·(667 m^(2))^(-1),with a starch content of 9.81 g·(100 g)^(-1).Ke 202015-76,Ke 202015-38,Ke 202015-69,and Ke 202015-135 had good comprehensive traits,and they were recommended to enter the screening experiment for early and medium maturing strains in the next year.The remaining 3 strains were eliminated in subsequent experiments due to their yield or ripening period not meeting the requirements.