Effectivity of Azotobacter chroococcum and arbuscular mycorrhiza fungi on physiological characteristics and growth of cocoa seedlings

1st International Conference on Food Security and Sustainable Agriculture in The Tropics

农业科学;经济学

Nasaruddin^1 ; Ridwan, I.^1

Department of Agronomy, Faculty of Agriculture, Hasanuddin University, Jalan Perintis Kemerdekaan KM 10, Makassar

90245, Indonesia^1

关键词: Arbuscular mycorrhizal fungi;    Arbuscular mycorrhizas;    Azotobacter chroococcum;    Chlorophyll a;    Leaf chlorophyll content;    Leaf stomatal conductance;    Physiological characteristics;    Seedling growth;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/157/1/012014/pdf
DOI  :  10.1088/1755-1315/157/1/012014

学科分类：农业科学（综合）

来源: IOP

【 摘 要 】

This study aims to study the effectiveness of Azotobacter chroococcum bacteria and Arbuscula mycorrhiza on some physiological characteristics and growth of cocoa seedlings. The study was conducted from March to October 2015, designed in the form of a two factors experiment based on the Randomized Block Design in a screen house. Inoculation of A chroococcum as the first factor consisted of control, inoculation of 104CFU ml-1water and 106CFU ml-1water per tree given as much as 40 ml. Inoculation of arbuscula mycorrhiza as a second factor consisted of control, inoculation of 3.0 g, 6.0 g and 9.0 g per tree, respectively. The experimental results show that inoculation of Azotobacter chroococcum 106CFU ml-1water tree-1and the arbuscular mycorrhizal fungi 6.0 g tree-1resulted in higher chlorophyll a, b and total leaf chlorophyll content, increased light absorption rate, leaf stomatal conductance and better seedling growth.