您好,欢迎访问云南省农业科学院 机构知识库!

Grafting of watermelon (Citrullus lanatus cv. Mahbubi) onto different squash rootstocks as a means to minimize cadmium toxicity

文献类型: 外文期刊

作者: Bidabadi, Siamak Shirani 1 ; Abolghasemi, Reza 1 ; Zheng, Si-Jun 2 ;

作者机构: 1.Isfahan Univ Technol, Coll Agr, Dept Hort, Esfahan 8415683111, Iran

2.Yunnan Acad Agr Sci, Kunming, Yunnan, Peoples R China

关键词: Cadmium toxicity; grafting; oxidative stress

期刊名称:INTERNATIONAL JOURNAL OF PHYTOREMEDIATION ( 影响因子:3.212; 五年影响因子:3.275 )

ISSN: 1522-6514

年卷期: 2018 年 20 卷 7 期

页码:

收录情况: SCI

摘要: To test the possibility that using appropriate rootstocks could improve the tolerance of watermelon to cadmium (Cd) toxicity, a greenhouse experiment was conducted to determine growth and antioxidant activities of watermelons, either nongrafted or grafted onto summer squash and winter squash. We provided nutrient solutions having four levels (0, 50, 100, and 200 mu M) of cadmium to treat the plants. Shoot and root biomass reduction were significantly lower in summer squash rootstock-grafted watermelon than winter squash rootstock-grafted and nongrafted watermelons. Cadmium induced a smaller decrease in leaf area index in grafted watermelons compared with nongrafted plants. The Cd-related reductions in chlorophyll content and efficiency of photosynthesis were more severe in nongrafted watermelons compared with dose grafted onto summer squash. Cd accumulation in shoot at the highest dose (200 mu M) of CdCl2 was significantly lower (19.76 mg/kg) in summer squash rootstock-grafted watermelon compared with winter squash rootstock-grafted (37.58 mg/kg) and nongrafted watermelon (72.12 mg/kg). H2O2, MDA production and electrolyte leakage of summer squash rootstock-grafted watermelon showed less increase, which was associated with a significant increase in the activities of antioxidant. The improved crop performance of grafted watermelons was attributed to their strong capacity to inhibit Cd accumulation in the aerial parts.

  • 相关文献
作者其他论文 更多>>