混种少花龙葵嫁接后代对镉胁迫枇杷实生幼苗磷、钾养分吸收的影响

doi:10.14088/j.cnki.issn0439-8114.2019.11.020

湖北农业科学 ›› 2019, Vol. 58 ›› Issue (11): 87-90.doi: 10.14088/j.cnki.issn0439-8114.2019.11.020

混种少花龙葵嫁接后代对镉胁迫枇杷实生幼苗磷、钾养分吸收的影响

石军¹, 项祖芬¹, 刘定友¹, 黄廷友¹, 廖明安, 林立金

1.绵阳市农业科学研究院,四川绵阳 621023;
2.四川农业大学,a.园艺学院;b.果蔬研究所,成都 611130

收稿日期:2018-10-15 出版日期:2019-06-10 发布日期:2019-12-05
通讯作者: 林立金（1980-）,男,四川成都人,副研究员,博士,主要从事果树生理生态研究,（电话）13882431976（电子信箱）llj800924@163.com。
作者简介:石军（1980-）,男,四川绵阳人,副研究员,博士,主要从事植物逆境生态研究,（电话）13548423717（电子信箱）tibm@163.com。
基金资助:
四川省科学技术厅应用基础计划项目（2016JY0258）; 四川省科学技术厅重点研发计划项目（2017FZ0022）

Effects of intercropping with post-grafting generation of Solanum photeinocarpum on phosphorus and potassium nutrient absorption of loquat seedlings under cadmium stress

SHI Jun¹, XIANG Zu-fen¹, LIU Ding-you¹, HUANG Ting-you¹, LIAO Ming-an, LIN Li-jin

1.Mianyang Academy of Agricultural Sciences,Mianyang 621023,Sichuan,China;
2a.College of Horticulture; 2b.Institute of Pomology and Olericulture,Sichuan Agricultural University,Chengdu 611130,China

Received:2018-10-15 Online:2019-06-10 Published:2019-12-05

摘要/Abstract

摘要： 为研究混种少花龙葵（Solanum photeinocarpum）嫁接后代对镉胁迫条件下枇杷[Eriobotrya japonica （Thumb.） Lindl.]养分吸收的影响,采用盆栽试验,将4种少花龙葵嫁接后代和枇杷实生幼苗（大五星枇杷和川早枇杷）混种种植于镉污染的土壤中,研究了混种对2种枇杷植物磷、钾养分的影响。结果表明,混种后,大五星枇杷和川早枇杷实生幼苗的全磷含量、全钾含量均高于单种,全磷含量较单种分别提高8.65%~96.49%和9.65%~97.37%,全钾含量较单种分别提高5.74%~45.92%和9.68%~52.42%。少花龙葵嫁接后代植株的全磷和全钾含量也得到不同程度的提高;混种后的土壤速效磷含量均高于两者单种的含量,而混种大五星枇杷实生幼苗的土壤速效磷含量低于其混种川早枇杷实生幼苗;混种后的土壤速效钾含量均高于两者单种的含量,其中,少花龙葵嫁接后代混种大五星枇杷实生幼苗的土壤速效钾含量低于其混种川早枇杷实生幼苗;混种后土壤蔗糖酶活性、脲酶活性及过氧化氢酶活性均高于单种。由此可知,在镉胁迫条件下,少花龙葵嫁接后代混种枇杷实生幼苗的搭配方式合理,促进了两种植物养分的吸收。

关键词: 少花龙葵（Solanum photeinocarpum）, 嫁接后代, 枇杷[Eriobotrya japonica （Thumb.） Lindl.], 混种, 镉胁迫

Abstract: To study the effects of intercropping with post-grafting generation of Solanum photeinocarpum on nutrients absorption of loquat[Eriobotrya japonica（Thumb.） Lindl.] under cadmium stress, four post-grafting generations of S. photeinocarpum were intercropped with loquat seedlings（Dawuxing and Chuanzao） in cadmium contaminated soil, and the pot experiment was carried out to study the effects of intercropping on phosphorus and potassium nutrients absorption of two plant species. Intercropping with post-grafting generation of S. photeinocarpum on phosphorus and potassium nutrient absorption of loquat seedling showed that, compared with the order was monoculture, intercropping could significantly improve the phosphorus and potassium nutrient uptake of loquat seedling, and total phosphorus contents increased by 8.65%~96.49% and 9.65%~97.37%, total potassium contents increased by 5.74%~45.92% and 9.68%~52.42%. Post-grafting generation of S. photeinocarpum on total phosphorus and total potassium contents have been improved to different extent; Compared with the order was monoculture, intercropping could significantly improve the soil available phosphorus content, but intercropping with post-grafting generation of S. photeinocarpum on soil available phosphorus content of Dawuxing loquat seedling lower than the Chuanzao loquat seedling; Intercropping could also significantly improve the soil available potassium content, and intercropping with post-grafting generation of S. photeinocarpum on soil available potassium content of Dawuxing loquat seedling was lower than the Chuanzao loquat seedling; Intercropping could also improve the soil invertase activity, urease activity and catalase activity. So the post-grafting generation of S. photeinocarpum intercropping with loquat seedlings was a reasonable collocation method under cadmium stress, which could promote the two kinds of plants absorption of nourishment.

Key words: Solanum photeinocarpum, post-grafting generation, loquat[Eriobotrya japonica （Thumb.） Lindl.], intercropping, cadmium stress

中图分类号:

石军, 项祖芬, 刘定友, 黄廷友, 廖明安, 林立金. 混种少花龙葵嫁接后代对镉胁迫枇杷实生幼苗磷、钾养分吸收的影响[J]. 湖北农业科学, 2019, 58(11): 87-90.

SHI Jun, XIANG Zu-fen, LIU Ding-you, HUANG Ting-you, LIAO Ming-an, LIN Li-jin. Effects of intercropping with post-grafting generation of Solanum photeinocarpum on phosphorus and potassium nutrient absorption of loquat seedlings under cadmium stress[J]. HUBEI AGRICULTURAL SCIENCES, 2019, 58(11): 87-90.

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混种少花龙葵嫁接后代对镉胁迫枇杷实生幼苗磷、钾养分吸收的影响

Effects of intercropping with post-grafting generation of Solanum photeinocarpum on phosphorus and potassium nutrient absorption of loquat seedlings under cadmium stress

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