Allelopathic effects of Neotyphodium endophytes of Elymus dahuricus on seeds and seedlings of three turf grass species

Abstract

Abstract: Allelopathic effects of Neotyphodium infected Elymus dahuricus were tested on seeds and seedlings of Lolium perenne, Festuca arundinacea, and Poa pratensis found to affect all three grasses. The seed germination experiment showed that extracts from E. dahuricus inhibited seed germination and seedling growth of all three grasses under germination conditions. The Neotyphodium endophyte considerably enhanced the inhibition of E. dahuricus on seed weights of L. perenne, seed germination of P. pratensis and seed germination, root length, seedling length, and seed weight of F. arundinacea (P<0.05). However, the endophyte considerably reduced inhibition of E. dahuricus on root length and seedling length of L. perenne, seedling length of P. pratensis, and seed weight of F. arundinacea (P<0.05). In a pot experiment, extracts from E. dahuricus accelerated plant growth of all 3 grasses, thus while the Neotyphodium endophyte reduced seed germination of L. perenne, and seed length of P. pratensis (P<0.05), it enhanced the seed germination of F. arundinacea (P<0.05).

CLC Number:

S324
Q945.79

YANG Song, LI Chun-jie, CHAI Qing, HUANG Xi, NAN Zhi-biao. Allelopathic effects of Neotyphodium endophytes of Elymus dahuricus on seeds and seedlings of three turf grass species[J]. Acta Prataculturae Sinica, 2010, 19(4): 33-40.

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