褐藻酸寡糖对草莓光合特性及植株形态的影响  

Effects of Alginate Oligosaccharides on Photosynthetic Characteristics and Plant Morphology of Strawberry

作　　者：严国富 杜朋潮 李方敏 汤洁 YAN Guofu;DU Pengchao;LI Fangmin;TANG Jie(Beijing Leili Marine Bioindustry Inc.,Beijing 100093)

机构地区：[1]北京雷力海洋生物新产业股份有限公司,北京100093

出　　处：《现代农业科技》2023年第15期60-62,69,共4页Modern Agricultural Science and Technology

基　　金：北京市科委重大项目“首都食品质量安全保障”重大子课题“藻源生物刺激素褐藻双寡糖素作物免疫调节剂创制及示范应用”(Z161100000616004)。

摘　　要：为筛选出能促进草莓生长、提高果实品质最佳的褐藻酸寡糖,以草莓红颜为试验材料,开展了不同聚合度褐藻酸寡糖对草莓形态特征、叶片光合特性和品质的影响试验。结果表明,褐藻酸寡糖能提高草莓叶片的叶绿素相对含量,改善草莓叶片的光合特性,提高草莓根系活力。施用褐藻酸寡糖1号1000倍液(聚合度为50)后,草莓根直径、根长、根数和根体积均最大,草莓可溶性固形物、可溶性蛋白、花青素含量分别较清水对照显著提高21.78%、121.51%、22.50%,可滴定酸较清水对照降低18.58%。In order to screen out the best alginate oligosaccharides that can promote the growth of strawberry and improve the fruit quality,the effects of different polymerization degrees of alginate oligosaccharides on the morphological characteristics,leaf photosynthetic characteristics and quality of strawberry were studied with strawberry Hongyan as the experimental material.The results showed that alginate oligosaccharides could increase the relative content of chlorophyll in strawberry leaves,improve the photosynthetic characteristics of strawberry leaves and enhance the root activity of strawberry leaves.After applying alginate oligosaccharide No.1(polymerization degree 50)1000 times dilution,the diameter,length,number and volume of strawberry roots were the largest.Compared with the clear water control,the contents of soluble solid matter,soluble protein and anthocyanin of strawberry significantly increased by 21.78%,121.51%and 22.50%,respectively,and the titrable acid decreased by 18.58%.

关 键 词：草莓 褐藻酸寡糖 光合特性 植株形态 

分 类 号：S668.4[农业科学—果树学]