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在玻璃温室内的遮荫条件下,研究不同年龄(1年生、2年生、3年生)、不同平茬强度(3年生幼苗,分别距地面0 cm、10 cm、30 cm处平茬)对辽东栎(Quercus wutaishnica)幼苗萌生能力的影响。结果表明:年龄、平茬强度对辽东栎幼苗的萌生能力均具有显著影响。萌条数、萌条高、萌条干质量、叶片总数、单株叶面积、根干质量、幼苗总干质量和比叶面积均随着幼苗年龄的增大而增大,且单株叶面积、根干质量和总干质量在不同年龄间均差异显著。轻度、中度平茬的幼苗萌条数均显著大于重度平茬幼苗,但前两者的萌条高和萌条基径均显著小于后者;萌条叶片总数、单株萌条叶面积、根干质量和总干质量均随平茬强度的增大而减小;重度平茬幼苗的萌条干质量最大,中度平茬幼苗最小,各平茬强度间无显著差异。2年生幼苗的萌生活力最大,显著大于3年生幼苗;3年生幼苗的萌生活力随平茬强度的增强而减小。
Under the condition of shading in glasshouse, the effects of different stubble intensity (3-year-old seedlings, 0 cm, 10 cm, and 30 cm at the ground) of different ages (1 year, 2 years, 3 years old) Effect of Quercus wutaishnica Seedlings on Seed Germination. The results showed that age and stubble intensity had significant effects on the seed germination ability of Quercus liaotungensis. The number of adventitious buds, the sprouting height, the dry weight of adventitious buds, the total number of leaves, the leaf area per plant, the root dry weight, the total dry weight of seedlings and the specific leaf area all increased with the increasing of seedling age, and the leaf area per plant , Root dry weight and total dry weight in different age were significantly different. The numbers of sprouting seedlings in mild and medium stubble were significantly higher than those in severe stubble seedlings, but the former two were significantly lower than those in the latter two. The total numbers of sprouting leaves, , The root dry weight and the total dry weight both decreased with the increase of stubble strength. The quality of stubble seedlings in severe stubble seedlings was the highest, the stubble seedlings in medium stubble seedlings were the smallest, and there was no significant difference among the stubble intensities. The 2-year-old seedlings had the highest germination vigor, which was significantly larger than that of 3-year-old seedlings. The germination vigor of 3-year-old seedlings decreased with the increase of stubble strength.