作 者：
;
机构地区：
金陵科技学院园艺学院园艺系
出 处：
《金陵科技学院学报》
2005年第2期85-87,共3页
摘 要：
以7叶龄芦荟(Aloevera)为试材研究了用含NaCl的Hoagland营养液浇灌4个月后其叶片汁液的物理和化学性质。结果表明芦荟叶片汁液的常规理化性质因营养液中NaCl含量不同而有较大差异。营养液中过多的盐分使芦荟汁液的电导率增大、灰分率升高、粘度和色素稳定性降低,NaCl含量低于200mmol/L,芦荟叶片的出汁率、固形物含量、相对密度和吸光度均较对照明显增大,处于较高的有益水平上。总体而言,NaCl浓度不超过100mmol/L,盐分对芦荟叶片汁液理化性质的负作用较轻微或不明显。
Aloe is of important value in medicine and therapeutics, surfactant detergent and cosmetics, food industry, landscape and ornamental horticulture. Available information of effect of salt stress on aloe leaf juice is very little. In this study, effect of salt stress on physical-chemical properties of aloe leaf juice were investigated with seven-leafold Aloe vera under sand culture for 4-month irrigation with saline nutrient solution. The results showed that the effects of salt stress on physical-chemical properties of aloe leaf juice were sophisticated. Sodium chloride in nutrient solution resulted in the increases of electronic conductivity and ash percentage, and the decreases of rotation viscosity and pigment stability. However, the positive effects of sodium chloride on the properties of aloe leaf juice were larger than that of its negative effects. More than five indexes we tested, including the rate of leaf juice, soluble solids content, relative density, optical density, total carbohydrate and polysaccharide content, were at the beneficial degrees as sodium chloride concentration is below 100 mmol/L.
关 键 词：
芦荟
氯化钠
叶片汁液
理化性质
领 域：
[农业科学]
[农业科学]
