A temporal assessment of nematode community structure and diversity in the rhizosphere of cisgenic Phytophthora infestans-resistant potatoes

Table 1 Comparative analysis of monthly rainfall (R), air temperature (AT), soil temperature (ST) and relative humidity (RH) measurements made from January to August for 2013, 2014 and 2015 at the field site in Oak Park, Carlow, Ireland

Month	Rainfall			Air temperature			Soil temperature			Relative humidity
Month	F value	P value	Year^a	F value	P value	Year^a	F value	P value	Year^a	F value	P value	Year^a
January	3.09	<0.051	2014^b	0	1		1.07	0.348		0	1
February	16.9	<0.001	2014^b	0.28	0.759		4.12	<0.02	2014	4.59	<0.013	2014^b
March	0.09	0.912	2014	3.41	<0.038	2013^b, 2014	29.85	<0.001	2014^b, 2015	5.87	<0.004	2014^b
April	0.85	0.429	2014	17.52	<0.001	2014^b, 2015	30.69	<0.001	2014^b, 2015	8.88	<0.001	2014^b
May	2.21	0.115	2015	5.44	<0.006	2014^b, 2015	4.95	<0.009	2014^b	6.86	<0.002	2014^b
June	0.83	0.439	2014	65.25	<0.001	2013^b, 2015	4.5	<0.014	2014^b	9.74	<0.001	2014^b, 2015
July	3.12	<0.049	2015^b	2.42	0.095	2013	45.07	<0.001	2013^b, 2014	5.86	<0.004	2014^b
August	0.30	0.742	2014	28.23	<0.001	2013^b	22.03	<0.001	2013^b	5.25	<0.007	2015^b

^aYears with the highest mean monthly value for the respective month and metric
^bRespective year in which recorded month differed significantly (P < 0.05) from same month in other 2 years

ISSN: 1472-6785