Alfalfa responses to drought, salinity, and herbivory by Tetranychus urticae (Acari: Tetranychidae) and performance of the pest on water-stressed plants Author Khodayari, Samira . Department of Plant Protection, Faculty of Agriculture, University of Maragheh, P. O. Box: 55181 - 83111, Maragheh, Iran; E-mail: khodayari @ maragheh. ac. ir khodayari@maragheh.ac.ir Author Abedini, Fatemeh . Department of Horticultural Sciences, Faculty of Agriculture, University of Maragheh, P. O. Box: 55181 - 83111, Maragheh, Iran; E-mail: abedini _ 5883 @ yahoo. com abedini_5883@yahoo.com text Persian Journal of Acarology 2022 2022-10-15 11 4 695 711 journal article 10.22073/pja.v11i4.75896 2251-8169 7447461

Table 1. Mean square values and coefficient of variation (CV) of GLM procedure for relative water content, chlorophyll, carotenoid, proline, protein, MDA and H 2 O 2 contents, GPX, APX and CAT enzyme activities of leaves of alfalfa plants before and after Tetranychus urticae feeding.

ANOVA	Protein (mgg- 1 )	Relative water content	CAT (µMmi n −1 g −1 )	GPX (µMmin −1 g −1 )	APX Chl. Car. (µMmin −1 −1 −1 −1 (mgg) (mgg) g)			Proline (mgg −1 )	MDA (µgg −1 )	H 2 O 2 (µMg −1 )
Chl.: Chlorophyll, Car.: Carotenoid. ns, * and ** means P> 0.05, P <0.05 and P <0.01 respectively.
Mite effect	0.007ns	21.0**	0.089**	0.084ns	5.71**	196ns	7.85ns	2.41**	1.50**	21.42**
Drought effect	0.160**	7836**	0.029*	1.28**	1.76*	1631**	165**	1.33*	6.11*	2.34*
Mite × Drought	0.032ns	452*	0.019*	0.425ns	1.74*	0.41ns	2.68ns	2.5**	4.12*	0.72ns
CV	32	14	33	39	45	26	43	42	20	42
Mite effect	0.072ns	3407**	0.283**	0.451*	34.41**	13.60ns	10.34ns	0.71ns	4.21**	53**
Salinity effect	0.374**	5009**	0.09**	0.842**	6.9**	1605**	111**	1.94*	3.14**	13**
Mite × Salinity	0.055ns	253ns	0.07**	0.219ns	9.2**	83.38ns	4.19ns	2.66*	0.43ns	4.02**
CV	22	12	45	35	46	29	39	40	27	13