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嫁接西瓜生长动态及伤流液营养元素含量的研究

标题: 嫁接西瓜生长动态及伤流液营养元素含量的研究
英文标题: THE STUDY ON GROWTH AND MINERAL CONCENTRATIONS IN THE XYLEM EXUDATE OF GRAFTED WATERMELON
作者: 陈贵林,乜兰春,赵丽丽
英文作者: CHEN GUILIN,NIE LANCHUN,ZHAO LIN
出版时间: 1999-01-01
机构: 河北农业大学
关键词: 西瓜,嫁接,伤流液,营养元素
英文关键词: WATERMELON,GRAFTED PLANT,XYLEM EXUDATA,MINERAL
刊名: 河北农业大学学报
英文刊名: JOURNAL OF AGRICULTURAL UNIVERSITY OF HEBEI
ISSN: 1000-1573
卷号: 003
基金: ^A河北省教委博士基金^B^D1%^A^B96220913D^D2
页码: 38-41
分类号: S651.01
摘要: 对嫁接西瓜和自根西瓜生长动态、根系伤流量及伤流液中营养元素含量进行了研究,结果表明:嫁接西瓜根系发育早,生长速度快,根冠比(R/T)高,根系伤流量显著增加,伤流液中NO_3-N,P,CA,MG,S含量显著高于自根西瓜,特别是NO_3-N,伸蔓期和开花期分别比自根植株高105.0%和93.7%.而伤流液中NH_4-N和K含量低于自根植株.表明嫁接西瓜具有不同于自根西瓜的营养吸收特性,施肥中应有别于自根植株.
英文摘要: Growth trends, yield of xylem exudate and mineral concentrations in the exudatewere investigated in comparison of grafted watermelon plants [Scion: Citrullus lanatus (Th. )M. cv .Xinchen; Rootstock: Lagenaria leucantha Rushy. cv. Nanzheng No. 1 ] and own - rootwatermelon plants. The results showed that the grafted plants developed root earlier and faster.Its ratio of R/T were higher, and yield of xylem exudata increased significantly. In the graftedplants, concentrations of N O3 - N, P, Ca, M g, S in xylem ...