Abstract
The present study was conducted to determine the potential of certain wheat (Triticum aestivum) varieties (Job-668, KAUZ, K-9006, MACS, PBW-588, Raj-4014, Raj-4026, Raj-4077, UP-2526, UP-2382 and WH-1003) straw allelochemicals on seed germination, seedling growth (length and dry weight), total protein content, and protein profile in three different weed species viz. Lathyrus aphaca L., Phalaris minor Ritz., and Vicia hirsuta L. In general, the extracts of Job-668, Raj-4014, Raj-4026 and Raj4077 showed more number of phenolics i.e. cinnamic, gallic, p-hydroxybenzoic, salicyclic and vanillic and inhibited both seed germination and seedling growth (both length and dry weight) in all the test weed species compared to other extracts. The extracts of K-9006 and WH-1003 showed only one phenolic acid i.e., cinnamic acid and stimulated all the parameters in both L. aphaca and P. minor. The total protein content (mg/g fwb) in different weed species was maximum (5.4) with K-9006 in P. minor and minimum (2.2) with Raj-4014 in L. aphaca. Thus, the extracts of Job668, Raj-4014, Raj-4026 and Raj-4077 suppressed different weed species in the following order: L. aphaca > P. minor and > V. hirsuta.
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