Role of Ca^(2+) on Growth of Brassica campestris *** ***(L.) Czern & Coss under Na^+ Stress

作     者：Badr-uz-Zaman M.Salim Rehana Asghar 

作者机构：Land Resources Research ProgrammeInstitute of Natural Resources and Environmental SciencesNational Agricultural Research Centre Department of BotanyUniversity of Arid Agriculture 

出 版 物：《Journal of Integrative Plant Biology》 (植物学报（英文版）)

年 卷 期：2010年第52卷第6期

页      面：549-555页

核心收录：

学科分类：0832[工学-食品科学与工程（可授工学、农学学位）] 08[工学] 09[农学] 0901[农学-作物学] 083202[工学-粮食、油脂及植物蛋白工程] 

主　　题：Coss under Na Czern Stress 

摘      要：Root and shoot growth of Brassica campestris L. and B. juncea increased significantly （P 〈 0.01） with enhanced Ca2＋ treatment along with 60 mM NaCl in the root medium. The maximum fresh mass of shoot and root in *** was recorded at 10 mM Ca2＋ concentration. The relative growth rate of shoot of both species reached its maximum at 8 mM of Ca2＋ concentration. Average rate of Ca2＋ intake （lCa） was higher in B. juncea than 6. campestris. In B. juncea, the average transport of Ca2＋ to shoot increased by 19%, 38%, 119%, 125% and 169% compared with the control. Furthermore specific utilization rate of Ca2＋ was higher in B. juncea than B. campestris. In B. campestris it increased by 9%, 32%, 41% and 59% at 4, 6, 8, and 10 mM of calcium in comparison to 2 mM Ca2＋ treatment. At 4, 6, 8 and 10 mM of Ca2＋ application, the increase in the leaf area ratio was 10,17, 23 and 30%, respectively. In the shoot and root portions of B. campestris and ***, Ca2＋ had a linear relationship with potassium and sulfur, whereas it was in antagonism with sodium ion.