000			03391nab a2200373 i 4500
003			BR-BrBNA
005			20230920131306.0
008			230808b2020 bl.ar|pooa||| 00| 0 eng |
040			_aBR-BrBNA _beng
072			_aH60
100			_aHayyat, M.S.
100			_aSafdar, M.E.
100			_aAsif, M.
100			_aTanveer, A.
100			_aAli, L.
100			_aQamar, R.
100			_aAli, H.H.
100			_aFarooq, N.
100			_aJaveed, H.M.A.
100			_aTarar, Z.H.
245			_aAllelopathic effect of waste-land weeds on germination and growth of winter crops
500			_aPublicação on-line; 30 ref.; 4 tables; Summary (En)
520			_a ABSTRACT Background: Waste-land weeds present around the fields exert their allelopathic influence on crops through their leaf leachates and rhizospheric soils. Objective: A study was conducted to investigate the phytotoxic action of four common waste-land weeds Parthenium hysterophorus L., Achyranthes aspera L., Lantana camara L. and Withania somnifera L. through their aqueous extracts and rhizospheric soils against winter crops Avena sativa L., Cicer arietinum L., Hordeum vulgare L. and Triticum aestivum L. Methods: Experiments were conducted in Agronomy laboratory in College of Agriculture at the University of Sargodha. In first experiment, 5% (w/v) water extract from entire plant of each weed was applied to germinating seeds of crops whereas in second experiment, crop seeds were subjected to the rhizospheric soil of each weed for germination test. Results: Results revealed that aqueous extracts of weeds were more phyto-inhibitory compared to their rhizospheric soils. Minimum germination percentage (42.5%), germination index (7.4), seedling vigor index (665.3), root length (3.27 cm), seedling length (14.15 cm) and seedling biomass (74.2 mg) of crops were recorded in response to aqueous extract of P. hysterophorus. Root growth of the crops was affected more compared to the shoot growth. Minimum germination percentage was observed in A. sativa (13.3) by the action of L. camara aqueous extract. Rhizospheric soil of L. camara and P. hysterophorus resulted in minimum germination percentages (57.5 and 58.3, respectively) and seedling vigor indices (1472.5 and 2008.4, respectively) of crops. The lowest germination (30%) and germination index (3.7) was observed for T. aestivum seeds germinated in the rhizospheric soil of W. somnifera. Among crops, A. sativa and C. arietinum were more susceptible to the aqueous extracts whereas T. aestivum to rhizospheric soils of weeds. Conclusions: It can be concluded that waste-land weeds especially P. hysterophorus and L. camara negatively affect the crops by their allelopathy. Keywords: allelopathy aqueous extracts germination rhizospheric soil waste-land weeds winter crops.
650			_aALELOPATIA
650			_aEXTRATO VEGETAL
650			_aERVA DANINHA
650			_aGERMINAÇÃO
650			_aINVERNO
650			_aCOLHEITA
773	0		_0886 _91817 _dLondrina-PR : Sociedade Brasileira da Ciência das Plantas Daninhas, 1978 _o2023-031024 _tPlanta Daninha (Brazil) _x0100-8358; 1806-9681 (on-line) _gv. 38 p. 1-8; (2020) _wBR2023000848
856			_uhttps://www.scielo.br/j/pd/a/pdMZmVYYLw76JRpmsxP4HTy/?format=pdf&lang=en
942			_cAnalítica
999			_c9762 _d9762