摘要
胡麻种间杂交技术是我国胡麻育种上的一个重大突破,克服了胡麻栽培种与野生种之间的不亲和性。通过分析胡麻种间杂交种各主要农艺性状与产量之间的相关性,探讨了胡麻杂交种主要农艺性状对产量的影响。结果表明:单位面积产量与分茎数、单果粒数、单株产量和千粒重呈正相关关系,但相关程度均未达到显著水平,其中与千粒重的相关性最高,相关系数为0.795;与株高、工艺长、主茎分枝数和有效果数呈负相关关系,其中与株高的相关性达到了显著水平,与工艺长的相关性达到了极显著水平。通过品种(品系)各农艺性状的隶属度函数对参试胡麻品种进行了综合评价,筛选出综合表现最好的胡麻材料是杂交品系1062。与常规栽培种(双对照)相比,胡麻种间杂交种的株高和工艺长较短,分茎数较多,千粒重较大,产量较高,增产优势明显。
Interspecific hybridization technology is a major breakthrough of oil flax breeding in our country , which overcomes the incompatibility between cultivated and wild species.Through correlation analysis between the main agronomic traits and yield of interspecific hybrids , the effects of main agronomic traits on yield of hybrids was discussed.The results showed that it was positive correlation between per unit area yield and stems number , grain number per fruit, plant yield and 1000-grain weight, but the correlation did not reach significant level.The highest correlation coefficient was 0.795 which between the yield and 1000-grain weight.It is negative correlation between per unit area yield and plant height, long process, main stem number and effective fruit number, and the correlation of plant height reached significant level, correlation between process long was the very significant level.Through comprehensive evaluation the membership functions of agronomic traits of varieties （ strains ） , the best comprehensive performance hybrid strains flax material 1062 was selected.Interspecific hybridization have shorter plant height and process length, more stems, higher 1000-grain weight and yield compared with the conventional culture （ double） .
出处
《河北农业科学》
2014年第3期76-78,88,共4页
Journal of Hebei Agricultural Sciences
基金
现代农业产业技术体系建设专项资金资助项目(CARS-17-GW-1)
关键词
胡麻
种间杂交种
农艺性状
产量
相关系数
综合评价
Flax
Interspecific hybrids
Agronomic traits
Yield
Coefficient of correlation
Comprehensive evaluation
