叶面施肥对早园竹叶片叶绿素及光合产物的影响  

Effects of Foliar Fertilization on Leaf Chlorophyll and Photosynthetic Products of Phyllostachys propinqua

作　　者：姜媛 冯小虎 Jiang Yuan;Feng Xiaohu(Beijing Black Bamboo Park,Beijing 100048,China)

机构地区：[1]北京市紫竹院公园管理处,北京100048

出　　处：《世界竹藤通讯》2023年第4期49-54,共6页World Bamboo and Rattan

基　　金：北京市公园管理中心紫竹院科技经费(11000022T000000471333)。

摘　　要：采用L8(27)正交设计,对早园竹(Phyllostachys propinqua)实施叶面施肥试验,研究大量元素(A)、芸薹素内酯(BRs)(B)、微量元素(C)3个因素的2种浓度水平对叶片SPAD值及叶绿素、可溶性糖和淀粉含量的影响。结果表明:微量元素能够独立、显著地提高叶片SPAD值、叶绿素含量及淀粉含量;大量元素对叶片可溶性糖含量有重要影响;BRs与大量元素、微量元素之间均有明显的交互作用,总体上能促进二者效能的发挥。对叶片SPAD值和叶绿素含量的最优处理组合为A2B2C2(大量元素35 mL/L、BRs 0.2 mL/L、微量元素400 mg/L);对叶片淀粉含量和可溶性糖含量的最优处理组合分别为A1B1C1(大量元素15 mL/L,BRs 0.1 mL/L,微量元素200 mg/L)和A2B1C2(大量元素35 mL/L,BRs 0.1 mL/L,微量元素400 mg/L)。与对照相比,叶面施肥增强了竹子叶片的光合作用,可作为竹子施肥的一种技术措施。With orthogonal test of L8(27),foliar fertilization test is conducted on Phyllostachys propinqua to study the effects of 2 types of concentrations of 3 factors,i.e.,major elements(A),brassinosteroids(BRs)(B)and trace elements(C),on leaf's SPAD,chlorophyll,soluble sugar and starch content.The results show that trace elements can affect SPAD,chlorophyll and starch content of leaves independently and significantly.Major elements can affect soluble sugar content of leaves to a major extent.BRs have obvious interactions with major elements and trace elements and can enhance the efficiencies of the both.The best treatment for SPAD and chlorophyll content of leaves is A2B2C2(major elements 35 mL/L,BRs 0.2 mL/L,and trace elements 400 mg/L).The best treatments for starch and soluble sugar content are A1B1C1(major elements 15 mL/L,BRs 0.1 mL/L and trace elements 200 mg/L)and A2B1C2(major elements 35 mL/L,BRs 0.1 mL/L,and trace elements 400 mg/L),respectively.Compared to the CK,foliar fertilization enhances the photosynthesis of bamboo leaves,which could be an adoptable technique for bamboo fertilization.

关 键 词：叶面施肥 早园竹 叶绿素 光合产物 北京 

分 类 号：S795[农业科学—林木遗传育种]