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Details of the paper
| Title |
Species composition and characterization of weed community in maize fields in Hebei Province |
| Author |
Shouhui Wei, Chaoxian Zhang, Guoying Zhai, Xiangju Li, Ruiwen Wang |
| Keywords |
maize field; weed community; species composition; relative abundance; similarity |
| Journal |
ACTA PHYTOPHYLACICA SINICA |
| Year,Vol,No |
2006,33(2) |
| Pages |
212-218 |
| Abstract |
Weed survey was conducted by sampling methods of inverted W-pattern to determine the species composition and structure of weed communities in maize fields in Hebei Province. The results showed that 136 weed species (including varieties) belonging to 34 families and 97 genera were found. Among them, 9 species were considered as dominant weeds, including Digitaria sanguinalis, Amaranthus retroflexus, Echinochloa crusgalli, Portulaca oleracea, Chenopodium album, Setaria viridis, Acalypha australis, Cephalanoplos segetum and Convolvulus arvensis; 10 species were regional dominant weeds; 21 common weed species and 96 normal weed species. The overall abundance of Digitaria sanguinalis, Amaranthus retroflexus, Echinochloa crusgalli, Portulaca oleracea, Chenopodium album and Setaria viridis were relatively high and were the main components of weed communities in all maize regions in Hebei. Weed community is mainly consisted of Amaranthus retroflexus + Setaria viridis + Chenopodium glaucum+ Chenopodium album in Zhangjiakou region, Digitaria sanguinalis + Echinochloa crusgalli + Amaranthus retroflexus + Chenopodium album in Chengde, Digitaria sanguinalis + Portulaca oleracea + Commelina communis + Echinochloa crusgalli + Amaranthus retroflexus in Tangshan-Qinhuangdao, Digitaria sanguinalis + Eleusine indica + Acalypha australis + Portulaca oleracea in Shijiazhuang. The species richness, diversity and evenness of weed community in maize fields in Zhangjiakou and Chengde were higher than other regions, but the Simpson’s index was relatively lower. Based on the Sorensen’s similarity index, the structure of weed community in Shijiazhuang region was similar to that of Tangshan-Qinhuangdao. The difference of weed occurrence and community structure might result from the geographical location, climatic condition and weed management practices. |
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2005 © Weed Research Laboratory,
Institute of Plant Protection, Chinese Academy of Agricultural Sciences
Address: No 2 West Yuanmingyuan Road, Haidian District, Beijing Postcode:
100094
Telephone: (010)62815937 Email: SHWEI@WSSC.ORG.CN
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