Chemical constituents of Cinnamomum septentrionale leaf litter and its allelopathic activity on the growth of maize (Zea mays).
A pot experiment was conducted to study the effect of decomposing Cinnamomum septentrionale leaf litter on the growth of maize. In this study, the morphological traits of maize were significantly inhibited when the leaf litter amount reached or exceeded 40 g per pot; Furthermore, during the early growth stage or with a large amount of litter addition, the pigment contents were inhibited by C. septentrionale leaf litter. Gas chromatography-mass spectrometry was used to determine the volatile substances of leaf litter and 34 compounds were identified, several of which were reported to be phytotoxic. In conclusion, the leaf litter of C. septentrionale showed a strong allelopathic effect on the growth of maize. Thus, it is better to avoid the growing of maize under or near the C. septentrionale plantation unless the leaf litter could be eliminated in time or other effective leaf litter processing methods could be implemented.
a Key Laboratory of Forestry Ecological Engineering of Sichuan Province , College of Forestry, Sichuan Agricultural University , Chengdu , China.
Shanshan
S
Yang
a Key Laboratory of Forestry Ecological Engineering of Sichuan Province , College of Forestry, Sichuan Agricultural University , Chengdu , China.
Hongling
H
Hu
a Key Laboratory of Forestry Ecological Engineering of Sichuan Province , College of Forestry, Sichuan Agricultural University , Chengdu , China.
Tingxing
T
Hu
b Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Ministry of Education , College of Life Science, Southwest University , Chongqing , China.
Qian
Q
Wang
a Key Laboratory of Forestry Ecological Engineering of Sichuan Province , College of Forestry, Sichuan Agricultural University , Chengdu , China.
Mao
M
Ye
a Key Laboratory of Forestry Ecological Engineering of Sichuan Province , College of Forestry, Sichuan Agricultural University , Chengdu , China.
Jie
J
Luo
a Key Laboratory of Forestry Ecological Engineering of Sichuan Province , College of Forestry, Sichuan Agricultural University , Chengdu , China.
Yong
Y
Peng
a Key Laboratory of Forestry Ecological Engineering of Sichuan Province , College of Forestry, Sichuan Agricultural University , Chengdu , China.
Ruyi
R
Zhang
D064089:Allelopathy; D027424:Cinnamomum / Q000737:chemistry / Q000633:toxicity*; D008401:Gas Chromatography-Mass Spectrometry; D018515:Plant Leaves / Q000737:chemistry / Q000633:toxicity*; D055549:Volatile Organic Compounds / Q000494:pharmacology; D003313:Zea mays / Q000187:drug effects / Q000254:growth & development*
D055549:Volatile Organic Compounds
A1:40 g leaf litter per pot; A2: 80 g leaf litter per pot; A3: 160 g leaf litter per pot; CK: 0 g leaf litter per pot; Car: Carotenoid content; Chl: chlorophyll; Chla: chlorophyll a; Chlb: chlorophyll b; Cinnamomum septentrionale; GC/MS; T1: 20 days after germination; T2: 40 days after germination; T3: 60 days after germination; allelopathy; growth; maize