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中晚熟马铃薯品系比较试验

Comparative Experiment of Middle and Late Maturing Potato Lines

  • 摘要: 为筛选推广适合黑龙江省第三、四积温带种植的高产、优质及抗病性好的中晚熟马铃薯品种,以克新13为对照,以自育马铃薯品系为试验材料,对物候期、形态特征、田间性状,块茎质量及产量等各个指标进行对比分析。结果表明:6个参试品系均为中晚熟马铃薯品系,产量指标与马铃薯病害及裂薯率等缺陷性调查中,表现最好的品系为HSD4,但其商品薯率与干物质含量相对较低。抗病性调查中,参试品系在整个生长季中只表现了马铃薯早疫病,HSD1、HSD3、HSD5品系早疫病抗性较好,但薯块缺陷较重,二次生长、裂薯率及空心率较高。从抗病性、产量及块茎质量方面进行综合考量评价,HSD4品系具有高产、优质及抗病性好等特点,在黑龙江省第三、四积温带可以推广种植。

     

    Abstract: In order to screen and popularize middle and late maturing potato varieties with high yield, high quality and good disease resistance suitable for the third and fourth accumulated temperature zone in Heilongjiang Province, taking Kexin 13 as the control, self bred potato lines were used as experimental materials, the phenological period, morphological characteristics, field characters, tuber quality and yield were compared and analyzed.The results showed that the six tested lines were middle and late maturing potato lines.In the investigation of yield index, potato disease and potato cracking rate, the best line was HSD4,but its commercial potato rate and dry matter content were relatively low.In the investigation of disease resistance, the tested lines only showed potato early blight in the whole growth season.HSD1,HSD3 and HSD5 lines had good resistance to early blight, but the potato block defect was serious, and the secondary growth, potato cracking rate and hollow rate were high.From the comprehensive consideration and evaluation of disease resistance, yield and tuber quality, HSD4 line had the characteristics of high yield, high quality and good disease resistance.It can be popularized in the third or fourth accumulated temperature zone of Heilongjiang Province.

     

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