空气相对湿度对野生葡萄的生理影响研究

Effects of different relative humidities on physiological activities of wild grape

摘要: 试验研究气温30℃、不同空气相对湿度（60%、70%、80%、90%、100%）条件下“华东葡萄”和“里扎马特”野生葡萄叶片水势、气孔开度、蒸腾速率、电导率、脯氨酸与丙二醛含量及过氧化物酶和超氧化物歧化酶活性变化结果表明，随湿度的增加，“华东葡萄”和“里扎马特”叶片水势增加，而电导率、蒸腾速率、丙二醛含量和过氧化物酶活性下降，脯氨酸含量和超氧化物歧化酶活性则先降后升。“里扎马特”在相对湿度为70%～80%、“华东葡萄”在相对湿度为80%~90%时脯氨酸含量和超氧化物歧化酶活性值均最低，可初步认定其是二者最适生长湿度。

Abstract: Researches on the water potential，transpiration rate，electric conductivity，stomatal aperture，proline and SOD and POD and MDA contents changes in V.pseudoreticulata and Rizamat leaves at 30℃ under 5 atmospheric relative humidities（60%，70%，80%，90%，100%）show that with relative humidity rising，the water potentials of V.pseudoreticulata and Rizamat increase；the transpiration rate，electric conductivity，POD and MDA contents decrease；SOD and proline contents raise first，then drop；SOD and proline contents are at the lowest when V.pseudoreticulata in the relative humidity of 80%～90%，Rizamat in the relative humidity of 70%～80%，indicating that this relative humidity should be suitable to their growth.