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园艺学报 ›› 2009, Vol. 36 ›› Issue (4): 559-564.

• 研究简报 • 上一篇    下一篇

平邑甜茶幼苗生长、根构型及吸收特性的容器调控

范伟国;杨洪强*   

  1. (山东农业大学园艺科学与工程学院, 作物生物学国家重点实验室, 山东泰安271018)
  • 收稿日期:2008-12-09 修回日期:2009-03-03 出版日期:2009-04-25 发布日期:2009-04-25
  • 通讯作者: 杨洪强

Regulation of Container Types on Growth, Root Architecture and Nutr ientsUptake of Seedling in Malus hupehensis (Pamp.) Rehd.

FAN We-guo and YANG Hong-qiang*   

  1. (College of Horticulture Science and Engineering, S tate Key Laboratory of Crop Biology, Shandong Agricultural University,Taipan, Shandong 271018, China)
  • Received:2008-12-09 Revised:2009-03-03 Online:2009-04-25 Published:2009-04-25
  • Contact: YANG Hong-qiang

摘要: 以平邑甜茶[Malus hupehensis (Pamp.) Rehd.] 幼苗为材料, 研究了栽培容器形状对幼苗新梢生长、幼苗根构型特征及根系营养吸收特性的影响。结果显示, 生长在“深窄盆”中的幼苗新梢生长量最大, 主根粗, 侧根多且短, 毛细根丰富, 对钙及锌的吸收能力较强, 但根系活力及根系对磷、铁的吸收能力较弱; “等高径盆”中幼苗新梢生长量小, 根冠比接近1, 主根细短、一级侧根少且粗长, 对钾的吸收能力较强; “浅宽盆”幼苗根冠比最大, 一级侧根数量、长度和粗度居中, 二级侧根粗长, 根系活力及根系对磷、铁的吸收能力较强, 但对钾、钙及锌的吸收能力弱。

关键词: 平邑甜茶, 根构型, 营养吸收, 盆栽容器, 粘土

Abstract: A systematic studywasmade about the effect of cultural container shapes on root architecture,nutrients uptake by roots and growth of shoots of Malus hupehensis (Pamp.) Rehd. seedling planted in the different shapes of pottery-pots. The results revealed thatwhen the seedling of M. hupehensis (Pamp.) Rehd. growing in the pots of deep and narrow, the growth of shoots was the biggest, and primary root was thick,lateral roots was short, the numbers of lateral roots and the fine rootswere more. And the root activity and the
uptake ability of P and Fe of the roots were low, but the up take ability of Ca and Zn of the roots was high.When growing in the equal height and diameter pots, the growth of shootswas the smallest, the root-top ratio
was close to 1. And p rimary rootwas thin and short, first lateral rootswere thick and long, and less numbers of the first lateral roots. And the K-up take ability of the roots was higher. When growing in the shallow and wide pots, the root-top ratio was the biggest, and the numbers, thickness and length of first lateral roots were between that in deep-narrow pots and in equal highness and diameter pots, second lateral rootswere thick and long. And the root activity and the up take ability of P and Fe of the roots produced in shallow-wide potswere higher, but the up take ability of K, Ca and Zn of the rootswas lower.

Key words: Malus hupehensis (Pamp. ) Rehd., root architecture, nutrients uptake, container type, clay soil

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