CAJ | 학술논문

为探明土壤埋藏深度对山杏种子萌发、幼苗发育的影响,选择完好山杏种子,模拟野外条件下啮齿动物对种子的分散埋藏方式,将种子分别埋藏于土壤的0 cm、4 cm、8cm、12 cm共4个深度.结果表明:(1)萌发的种子数量和幼苗建成数量在4 cm埋藏组最高:随种子埋藏深度增加,萌发的种子萌发率、幼苗建成率均趋于减少;(2)在较深的埋藏组,霉烂的种子数增加;(3)将种予置于土壤表面(0 cm埋藏组),不利于种子的萌发;(4)埋藏深度对幼苗的发育有显著影响.本研究结果显示,适度埋藏有利于山杏种子的萌发和幼苗生长,由浅埋种子(4cm)所建成的幼苗在早期发育阶段具有一定优势.
위탐명토양매장심도대산행충자맹발、유묘발육적영향,선택완호산행충자,모의야외조건하교치동물대충자적분산매장방식,장충자분별매장우토양적0 cm、4 cm、8cm、12 cm공4개심도.결과표명:(1)맹발적충자수량화유묘건성수량재4 cm매장조최고:수충자매장심도증가,맹발적충자맹발솔、유묘건성솔균추우감소;(2)재교심적매장조,매란적충자수증가;(3)장충여치우토양표면(0 cm매장조),불리우충자적맹발;(4)매장심도대유묘적발육유현저영향.본연구결과현시,괄도매장유리우산행충자적맹발화유묘생장,유천매충자(4cm)소건성적유묘재조기발육계단구유일정우세.
A semi-greenhouse study was conducted to understand the effects of soil burial depth on seed germination and seedling develop-ment. The seeds of wild apricot (Prunus armeniaca) were buried at the soil depths of 0-cm, 4-cm, 8-cm, and 12-cm, respectively, to simulate the seed hoarding behavior of rodents in the field. The results revealed that the rates of seed germination and established seedlings from buried seeds were both the highest in 4-cm burial depth group, and then decreased with increasing soil depth. The number of rotten seeds increased in deeper burial depth. It is unfavourable for seed germination at 0-cm burial depth (i.e., seeds were laid on soil surface). There was insignifi-cant effect of burial depth on growth of established seedlings. The results from this study indicated that proper burial depth in soil would be helpful for the seed germination and seedling growth. The seedlings derived from buried seeds at shallower depth (4 cm) in this research have advan-tage in their early development.