. 2015 Apr 28;116(6):899–906. doi: 10.1093/aob/mcv042

TABLE 2.

Means (± s.e.) of vegetative and reproductive traits, flowering phenology of the Tibetan Asteraceae Saussurea nigrescens between ambient and warmed open top-chambers (OTCs) in 2012 and 2013. All means are for the individual plant level. Plant height, aboveground vegetative biomass and capitulum number per plant were all based on single measurements per plant

	Ambient OTCs	Warmed OTCs
2012
Plant height (cm)	29·03 ± 0·56^a	30·14 ± 0·68^a
Aboveground vegetative biomass (g)	1·49 ± 0·05^a	1·38 ± 0·06^a
Seed number per plant	78·10 ± 4·63^a	49·73 ± 5·10^b
Seed set (%)	61·80 ± 1·62^a	66·60 ± 2·64^a
Seed mass per plant (mg)	185·00 ± 9·33^a	77·00 ± 8·40^b
Flowering onset time	212·10 ± 0·69^a	211·20 ± 0·55^a
Flowering offset time	228·50 ± 0·56^a	227·20 ± 0·76^a
Nectar productivity (µl)	668·32 ± 63·64^a	59·74 ± 13·54^b
2013
Plant height (cm)	28·86 ± 0·63^a	30·74 ± 0·70^a
Above-ground vegetative biomass (g)	1·52 ± 0·06^a	1·46 ± 0·10^a
Seed number per plant	83·07 ± 5·08^a	45·67 ± 3·94^b
Seed set (%)	65·00 ± 2·42^a	68·00 ± 3·33^a
Seed mass per plant (mg)	225·80 ± 14·79^a	84·40 ± 9·20^b
Flowering onset time	211·00 ± 0·46^a	210·60 ± 0·58^a
Flowering offset time	228·10 ± 0·49^a	227·20 ± 0·48^a
Nectar productivity (µl)	875·67 ± 72·91^a	96·29 ± 25·64^b

Different letters after means denote significant differences in values (P < 0·05; two-way ANOVA followed by post hoc Tukey test.

All data are normally distributed (Shapiro–Wilk test, P > 0·1 for each OTC); n = 20 for both ambient and warmed treatments.