CAJ | 학술논문

[目的]测定丽江山荆子和八棱海棠2份材料在干旱和复水情况下叶片结构的特征指标。[方法]以丽江山荆子（Malus rockii Rehd.）和八棱海棠（Malus robusta（Carr.）Rehd.）为试验材料，利用大棚自然控水-复水进行模拟水分胁迫处理。[结果]丽江山荆子叶片有2层栅栏组织，而八棱海棠叶片栅栏组织由3层柱状细胞构成，且排列紧密。八棱海棠叶片较丽江山荆子厚，栅海比高，气孔密度大，而丽江山荆子叶片气孔对于水分变化较八棱海棠敏感，干旱复水后气孔面积增加幅度是八棱海棠的10倍。干旱复水后，2份材料叶片的 SR值提高，栅海比下降，八棱海棠2个指标的变化幅度均大于丽江山荆子。[结论]2份材料叶片在干旱-复水水分胁迫的响应不同，八棱海棠叶片抗旱结构特征较丽江山荆子明显。
[목적]측정려강산형자화팔릉해당2빈재료재간한화복수정황하협편결구적특정지표。[방법]이려강산형자（Malus rockii Rehd.）화팔릉해당（Malus robusta（Carr.）Rehd.）위시험재료，이용대붕자연공수-복수진행모의수분협박처리。[결과]려강산형자협편유2층책란조직，이팔릉해당협편책란조직유3층주상세포구성，차배렬긴밀。팔릉해당협편교려강산형자후，책해비고，기공밀도대，이려강산형자협편기공대우수분변화교팔릉해당민감，간한복수후기공면적증가폭도시팔릉해당적10배。간한복수후，2빈재료협편적 SR치제고，책해비하강，팔릉해당2개지표적변화폭도균대우려강산형자。[결론]2빈재료협편재간한-복수수분협박적향응불동，팔릉해당협편항한결구특정교려강산형자명현。
Objective] The aim was to explore leaf structure characters of Malus rocki and Malus robusta at drought and rewatering. [Method] The research used Malus rocki and Malus robusta as test materials to conduct water stress treatment by water control and rewatering. [Result] Malus rocki consists of two layers of pal-isade tissue and Malus robusta consist of three layers of columnar cel s. Leaf of Malus robusta is thicker, and the thickness of leaf palisade tissue-to-the thickness of spongy tissue ratio is higher. ln contrast, leaf stoma of Malus rocki performs more sensitively to water change, and the stoma area after rewatering is 10 times as high as Malus robusta. Besides, after rewatering, SR grows higher, the thickness of leaf palisade tissue-to-the thickness of spongy tissue ratio declines of the two test materials, but the changes of Malus robusta prove more significant. [Conclusion] The two test materials are different in responses to drought and rewatering, and the leaf structure characters of Malus robusta changes obviously than that of Malus rocki during water variation in terms of resisting drought.