CAJ | 학술논문

为明确必需元素钙对人参生长的影响，利用水培试验在霍格兰氏营养液基础上，设置3个钙浓度梯度作为处理：分别为0?25（低钙组），4（正常组），16（高钙组） mmol／L，研究钙胁迫下人参生物学特征及其体内生理响应机制。试验结果表明：与正常组相比，低钙处理人参叶片深绿、面积小且皱缩，茎弯曲，根系弱小、侧根少且呈红褐色，高钙组人参叶片黄绿，侧根发达；高钙阻碍了人参叶片叶绿素的合成，提高了叶片光合捕光能力，叶绿素含量为2?692 mg／g，叶绿素a与叶绿素b比值为2?602；低钙破坏了细胞膜透性，增大了人参茎电解质渗透率，其电解质渗透率是正常组的2?1倍，为35?64％；人参根系活力的比较，正常组＞高钙组＞低钙组（ P＜0?05）分别为53?94，49?32，42?74μg／（ g·h）；人参各器官的钙积累随着钙浓度的增加而相应增大，其中人参叶片增加的幅度最大，其钙含量为1?751 mg／g。
위명학필수원소개대인삼생장적영향，이용수배시험재곽격란씨영양액기출상，설치3개개농도제도작위처리：분별위0?25（저개조），4（정상조），16（고개조） mmol／L，연구개협박하인삼생물학특정급기체내생리향응궤제。시험결과표명：여정상조상비，저개처리인삼협편심록、면적소차추축，경만곡，근계약소、측근소차정홍갈색，고개조인삼협편황록，측근발체；고개조애료인삼협편협록소적합성，제고료협편광합포광능력，협록소함량위2?692 mg／g，협록소a여협록소b비치위2?602；저개파배료세포막투성，증대료인삼경전해질삼투솔，기전해질삼투솔시정상조적2?1배，위35?64％；인삼근계활력적비교，정상조＞고개조＞저개조（ P＜0?05）분별위53?94，49?32，42?74μg／（ g·h）；인삼각기관적개적루수착개농도적증가이상응증대，기중인삼협편증가적폭도최대，기개함량위1?751 mg／g。
To study the effects of different concentration of calcium on ginseng growth under hydro?ponics conditions, Hoagland nutrient solution including three different calcium concentration, 0?25 mmol/L(low calcium group), 4 mmol/L (normal group) and 16 mmol/L(high calcium group), were used. The results showed that low calcium group presented dark green and shrinking leaves, curve stems and weak roots with a few of brown red lateral roots, while high calcium group had yellow green leaves and developed lateral roots compared with the normal group. High calcium impe?ded synthesis of chlorophyll and improved the ability to catch light in photosynthesis. The chlorophyll was 2?692 mg/g and chl a/b was 2?602 in ginseng. Low calcium injured membranous permeability of ginseng stem and increased the electrolyte leakage of stem. Its electrolyte leakage was 35?64%, 2?1 times as much as the normal group. The root activity was normal group > high calcium group >low calcium group (P<0?05), 53?94,49?32 and 42?74 μg/(g·h) respectively. As the calcium concentration increasing in the nutrition solution, the calcium accumulation of each organ of ginseng increased. The calcium accumulation of leaf increased most, and its calcium content was 1?751 mg/g. The deficiency of calcium seriously affects the growth and development of ginseng root, stem and leaf. Meanwhile, it decreases ginseng′s resistance to adversity. Under high calcium envi?ronment, calcium can improve the adversity resistance of ginseng by reducing the rate of stem emer?gence and increasing the generative capacity of ginseng lateral roots. However, excessive calcium will inhibit ginseng growth.