PJB-2019-276
Impact of chemical priming on root infecting fungi, photosynthesis and yield components of cowpea and mung bean
Shahnaz Dawar, Marium Tariq, Zamin Shaheed Siddiqui and Nazish Bashir
Abstract
The aim of the present research is to provide information regarding the effect of signal molecule (H2O2) and a growth hormone (SA) on growth of cowpea (Vigna unguiculata [L.] Walp) and mung bean (Vigna radiata L.) plants under lab and in field conditions. Three different concentrations of SA and H2O2 (0.5, 1 and 2%) were prepared and subsequently seeds were primed with the above concentrations for 5 mins. and placed on Petri plates against root infecting fungi. Results revealed that the seeds primed with 0.5% showed germination while 2% concentration inhibited the growth of Rhizoctonia solani Kuhn, Fusarium oxysporum Schlechtendahl and Macrophomina phaseolina (Tassi) Goid by displaying zone of inhibition. In field, shoot length and weight, root length and weight, nodules, number, length and weight of pods were increased when cowpea and mung seeds primed with H2O2 at 0.5% concentration. However, root infecting fungi like M. phaseolina, R. solani and Fusarium species was also decreased by application of H2O2 at 0.5% as compared to other treatments. Increased Fv/Fm was recorded in cowpea and mung bean seeds primed with water while increased performance index was obtained in seeds primed with H2O2 resulting in improved chlorophyll performance. However, seeds primed with water showed decrease in performance index.
To Cite this article:
Dawar, S., M. Tariq, Z.S. Siddiqui and N. Bashir. 2020. Impact of chemical priming on root infecting fungi, photosynthesis and yield components of cowpea and mung bean. Pak. J. Bot., 52(6): DOI: http://dx.doi.org/10.30848/PJB2020-6(7)
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