钙+IAA对成熟期夜间低温胁迫下薄皮甜瓜果实营养品质的调控作用  

Effect of Ca + IAA on the Nutritional Quality of Muskmelon Fruit under Low Temperature Stress at Night during Maturity

作　　者：李天来[1] 杜哲[1] 郝敬虹[1] 阚素娥[1] 

机构地区：[1]沈阳农业大学园艺学院/辽宁省设施园艺重点实验室,沈阳110161

出　　处：《沈阳农业大学学报》2009年第3期269-272,共4页Journal of Shenyang Agricultural University

基　　金："十一五"国家科技支撑项目(2006BAD07B04);"十一五"辽宁省重大科技攻关项目(2006215001)

摘　　要：研究了硝酸钙+IAA处理对成熟期不同夜间低温下设施薄皮甜瓜果实品质的影响,以薄皮甜瓜(Cucumis melo L.)玉美人为试材,选择浓度为0.5%硝酸钙和20×10-6IAA喷施甜瓜植株。结果表明:硝酸钙+IAA处理明显提高了12℃和9℃夜温下薄皮甜瓜果实中可溶性固形物、维生素C、果糖、葡萄糖、蔗糖和总糖的含量,喷施硝酸钙+IAA处理的总糖含量在12℃和9℃低夜温处理后分别比未喷施硝酸钙+IAA提高了12.63mg·g-1和9.877 mg·g-1,蔗糖也分别提高了7.403 mg·g-1和5.768 mg·g-1。12℃低夜温处理喷施硝酸钙+IAA比未喷施硝酸钙+IAA的苹果酸和酒石酸含量降低了16.7%,9℃低夜温处理喷施硝酸钙+IAA比未喷施处理降低了18.4%。硝酸钙+IAA处理降低了果实中有机酸含量,改善了果实营养品质。Muskmelon ＂Yu mei ren＂ was taken as the experimental material and the mixture of calcium nitrate （0.5%） and IAA （20×10^6） was sprayed to melon plants in order to study the effect of calcium nitrate ＋ IAA treatment on the maturation of muskmelon fruit under low temperature stress at night. The results showed that calcium nitrate ＋ IAA treatment increased significantly soluble solids, vitamin C, fructose, glucose, sucrose and total sugar content in muskmelon fruit at the night temperatures of 12 ℃ and 9 ℃. Total sugar contents increased 12.63 mg·g^1 and 9.877mg·g^1 at the 9 ℃and 12 ℃, and the sucrose also raised 7.403 mg·g^1 and 5.768 mg·g^1. The malic acid and tartaric acid contents reduced 16.7% at 12℃ and 18.4% at 9℃. So calcium nitrate ＋ IAA could reduce content of organic acid in muskmelon fruit and improve its nutritional quality.

关 键 词：薄皮甜瓜 硝酸钙 IAA 低温 营养品质 

分 类 号：S652[农业科学—果树学]