期刊名称：Proceedings of the International Academy of Ecology and Environmental Sciences
电子版ISSN：2220-8860
出版年度：2020
卷号：10
期号：2
页码：32-37
出版社：International Academy of Ecology and Environmental Sciences
摘要：Pea (Pisum sativum L.) is a valuable proteinaceous vegetable. It has 40% contribution in economy among world pulses and 3rd in ranking in consumption after garlic and beans in Pakistan. Its yield is affected by many abiotic stresses e.g. salinity, water logging, heavy metals in sewage water and wastes etc. Heavy metals are great threat to humans as they are not only dangerous to humans through food chains but also reducing its cash benefits by decreasing the yield of crop plants qualitatively and quantitatively. This study aimed to investigate the effects of lead (Pb) on vegetative, propagative and physiochemical properties of pea plants. In this regard, an experiment was conducted on two cultivars i.e., meteor and classic of pea by treating them with heavy metal salt, lead nitrate (Pb(NO3)2) at flowering stage. It was hypothesized that lead will damage vegetative characters compared to control treatments and declines in agronomic yields of pea. Chemical analyses of pea plants confirmed that pea plants activated their defensive chemical mechanisms by producing certain antioxidant chemicals against lead treatment and also reduced its nutritive chemicals.
关键词：pea ; heavy metal harms ; lead accumulation ; vegetables
