Gao Fang, Zhang Jia-Lei, Yang Chuan-Ting, Zhang Feng, Yang Xiao-Kang, Lin Ying-Jie, Li Xiang-Dong
State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai' an 271018, Shandong, China.
Ying Yong Sheng Tai Xue Bao. 2011 Nov;22(11):2907-12.
Taking high-oil peanut cultivar Yuhua15 and high-protein peanut cultivar XB023 as test materials, a pot experiment was conducted in both 2009 and 2010 to study the effects of applying different concentration calcium (Ca) on the vegetative growth, leaf chlorophyll content, photosynthetic rate, and protective enzyme activities, as well as the yield and kernel quality of the cultivars under cadmium (Cd) stress. Applying Ca alleviated the inhibitory effects of Cd on the height growth of peanut main stem and the length growth of the branches, resulting in the increase of plant dry mass, and mitigated the Cd damage on peanut leaf, manifesting in the increase of leaf chlorophyll content, photosynthetic rate, superoxide dismutase (SOD), peroxidase (POD), and catlase (CAT) activities, and soluble protein content, and the decrease of leaf malondialdeyde (MDA) content. Under the application of Ca, both the pod yield and the kernel yield increased, mainly because of the increase of pod number per plant and of the kernel number per pod. Applying Ca also promoted the transformation of soluble sugar into fat and protein in peanut kernel, increased the kernel fat and protein contents, and improved the kernel quality under Cd stress. Ca application decreased the kernel Cd content of the cultivars, with better effect on Yuhua15 than on XB023.
以高油花生品种豫花15和高蛋白花生品种XB023为试验材料，于2009年和2010年进行盆栽试验，研究在镉（Cd）胁迫下，施用不同浓度钙（Ca）对花生营养生长、叶片叶绿素含量、光合速率、保护酶活性以及品种产量和籽仁品质的影响。施用钙缓解了镉对花生主茎高度生长和侧枝长度生长的抑制作用，使植株干质量增加，减轻了镉对花生叶片的伤害，表现为叶片叶绿素含量、光合速率、超氧化物歧化酶（SOD）、过氧化物酶（POD）和过氧化氢酶（CAT）活性以及可溶性蛋白含量增加，叶片丙二醛（MDA）含量降低。施用钙后，荚果产量和籽仁产量均增加，主要原因是单株荚果数和单荚籽仁数增加。施用钙还促进了花生籽仁中可溶性糖向脂肪和蛋白质的转化，增加了籽仁脂肪和蛋白质含量，改善了镉胁迫下的籽仁品质。施用钙降低了品种籽仁中的镉含量，对豫花15的效果优于XB023。
