|Table of Contents|

Effects of Intercropping With Post-Grafting Generations of Galinsoga parviflora on Cadmium Accumulation of Cyphomandra betacea Seedlings

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2019年07
Page:
94-101
Research Field:
Publishing date:

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Title:
Effects of Intercropping With Post-Grafting Generations of Galinsoga parviflora on Cadmium Accumulation of Cyphomandra betacea Seedlings
Author(s):
LIAN Huashan1; LIAO Ming′an2; LIN Lijin3
(1.Department of Landscape Gardening，Chengdu Agricultural College，Chengdu，Sichuan 611130；2.College of Horticulture，Sichuan Agricultural University，Chengdu，Sichuan 611130；3.Institute of Pomology and Olericulture，Sichuan Agricultural University，Chengdu，Sichuan 611130)
Keywords:
Cyphomandra betacea seedlings; intercropping; Galinsoga parviflora; post-grafting generation; cadmium
PACS:
-
DOI:
10.11937/bfyy.20183223
Abstract:
In order to screen out the intercropping mode which could effectively promote the growth of Cyphomandra betacea seedlings and reduce its cadmium content under cadmium stress，the fruit tree C.betacea seedlings and cadmium hyperaccumualtor plant Galinsoga parviflora were used in the pot experiment，and the effects of intercropping with the post-grafting generations of Galinsoga parviflora (the rootstocks of G.parviflora，Siegesbeckia orientalis，Bidens pilosa and Tagetes erecta，and ungrafted，which marked as SG，SS，SB，ST and SN) on cadmium accumulation of Cyphomandra betacea seedlings were studied.The results showed that intercropping with generations of G. parviflora not only significantly increased the roots，stems and leaves biomasses of C.betacea seedlings，but also increased the photosynthetic pigment contents in that.Among them，intercropping with SB had the most significant effect on the growth of C.betacea seedlings，and the total biomass increased by 312.48%,compared with the monoculture.For the cadmium content in C.betacea seedlings，intercropping with post-grafting generations of G. parviflora (SG，SS，SB and ST) was significantly lower than those of intercropping with SN and the monoculture of C.betacea seedlings.Intercropping with SB had the lowest cadmium content in roots，stems and leaves of C.betacea seedlings，which decreased by 46.30%，36.68%，and 22.10%，respectively，compared with the monoculture.For the post generations of G.parviflora，the roots and shoots biomasses of SN were significantly higher than those of other post-grafting generations of G.parviflora，but the cadmium content in SN reached the lowest in all treatments.Therefore，intercropping with post-grafting generations of G.parviflora could promote the growth of C.betacea seedlings and decrease the cadmium content in C.betacea seedlings，and the best effect was SB intercropping with C.betacea seedlings.

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Last Update: 2019-05-05