成都平原东北部核桃资源优系筛选

Selection of Superior Strains of Walnut Resources in Northeastern Chengdu Plain

为进一步挖掘四川本地核桃种质资源,在对德阳本地100份优良核桃种质进行筛选的基础上,将筛选出的种质与辽核1号和香玲的开花结果情况、坚果性状与品质、抗逆性等进行了比较。结果表明:(1)筛选出的核桃种质分别为旌科1号和旌科2号。(2)旌科1号和旌科2号均具有外观质量好、壳薄、取仁容易、仁色浅和种仁品质佳的特点,保留了母本的遗传优良性,并且表现出品质好、产量高、抗逆性强等特点。(3)旌科1号和旌科2号抗逆性优于引进的良种辽核1号和香玲。

In order to further tap the local walnut germplasm resources,100 excellent walnut germplasms in Deyang were screened and compared with‘Liaohe No.1’and‘Xiangling’in terms of flowering and fruiting,nut traits and quality,stress resistance and so on.The results showed that(1)the selected walnut germplasms were‘Jingke 1’and‘Jingke 2’,respectively.(2)Both‘Jingke 1’and‘Jingke 2’had the characteristics of good appearance,thin shell,light color and good quality of kernels with the genetic superiority of their parents,and showed the characteristics of good quality,high yield and strong resistance to stress.(3)The stress resistance of‘Jingke 1’and‘Jingke 2’was better than that of‘Liaohe 1’and‘Xiangling’.