CAJ | 학술논문

[目的]研究新疆骆驼蓬种子特征、萌发条件及耐盐耐旱特性.[方法]以生长在新疆石河子市郊的骆驼蓬种子为材料,研究其种子特性,测定种子活力和种子吸水率,并以发芽率为指标探讨其最适萌发条件.[结果]骆驼蓬种子种皮具有复杂精细的表面纹饰;长宽比为1.653,千粒重为2.302 g;种子活力和吸水率都较高;种子具有较强的耐盐性,当NaCl浓度为0.8%时,萌发率达16%,但随着盐浓度的升高,萌发率相应下降;在聚乙二醇(PEG)模拟水分胁迫条件下,低浓度PEG(<5.0%)可提高骆驼蓬种子萌发率,而较高浓度PEG(>5.0%)下,种子萌发率随着胁迫强度的增加而降低;光照对骆驼蓬种子萌发有促进作用;土壤条件对骆驼蓬种子萌发也有影响,其中骆驼蓬种子在沙壤土(50%)中萌发率最大,其次是河沙(45%),再次是黏土(40%);骆驼蓬种子的最适萌发温度为30 ℃;0.5 cm为其最适播种深度.[结论]为骆驼蓬人工繁育及大规模人工种植提供理论依据.
[목적]연구신강락타봉충자특정、맹발조건급내염내한특성.[방법]이생장재신강석하자시교적락타봉충자위재료,연구기충자특성,측정충자활력화충자흡수솔,병이발아솔위지표탐토기최괄맹발조건.[결과]락타봉충자충피구유복잡정세적표면문식;장관비위1.653,천립중위2.302 g;충자활력화흡수솔도교고;충자구유교강적내염성,당NaCl농도위0.8%시,맹발솔체16%,단수착염농도적승고,맹발솔상응하강;재취을이순(PEG)모의수분협박조건하,저농도PEG(<5.0%)가제고락타봉충자맹발솔,이교고농도PEG(>5.0%)하,충자맹발솔수착협박강도적증가이강저;광조대락타봉충자맹발유촉진작용;토양조건대락타봉충자맹발야유영향,기중락타봉충자재사양토(50%)중맹발솔최대,기차시하사(45%),재차시점토(40%);락타봉충자적최괄맹발온도위30 ℃;0.5 cm위기최괄파충심도.[결론]위락타봉인공번육급대규모인공충식제공이론의거.
[Objective] The research aimed to study the seed characteristics, germination condition and the tolerant ability to salt and drought. [Method] Seeds of Peganum harmala grown in the suburbs of Shihezi were collected as the material, the basic characteristics, the seed vitality and water-absorption potential of the seeds were studied. Optimal germination condition of the seed were determined according to the germination rate. [Result] The results showed that there was the complex and elaborate surface sculpture on Peganum harmala seed coat. Its ratio of length and width was 1.653, and 1 000-grain weight was 2.302 g. Its seed vitality and water-absorption potential were high. Its seed had high salt resistance. When NaCl concentration was 0.8%, the germination rate was up to 16%, but the germination rate gradually descended along with the increase of NaCl concentration. Under the water stress condition, the low concentration polyehylene glycol(PEG) ,less than 5.0%, could increase the seed germination rate, but under the higher concentration PEG(>5.0%) condition, the seed germination rate descended along with the stress intensity increasing. The illumination had the stimulative action on the seed germination of Peganum harmala. The soil condition also had the influence on the seed germination of Peganum harmala, the germination rate was the biggest in the sandy soil(50%), the next was in the river sand(45%), the last was in the clay(40%). The most suitable germination temperature of Peganum harmala seed was 30 ℃. The most suitable sowing depth of Peganum harmala seed was 0.5 cm. [Conclusion] The study can provide the theoretical basis for artificial breeding and manual work in large scale of Peganum harmala.