Castela coccinea




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Table S1 Seed germination percentage (mean + SE) of Chaco forest species in response to heat treatments. Different capital letters within each species indicate significant differences in germination percentage between heat treatments (DGC test; α = 0.05). Castela coccinea and Tricomaria usillo were not subjected to all treatments because of lack of seeds, indicated with a dash. Results from the 180°C treatment were not included in the statistical analyses due to the many ‘zero’ values. Germination of species subjected to mechanical scarification are given in parentheses





Treatment

Species

Control (25ºC)




70ºC (1 hour)




100ºC (5 min)




120ºC (5 min)




180ºC (5 min)

Acacia aroma

2.2 + 1.1A

(98.9 + 1.1)




2.2 + 2.2A

(85.6 + 4.4)




0.0 + 0.0A

(84.4 + 11.0)




0.0 + 0.0A

(84.4 + 8.9)




0.0 + 0.0

(0.0 + 0.0)

Acacia caven

3.3 + 0.0A

(95.6 + 1.1)




7.8 + 2.9A

(97.8 + 2.2)




5.6 + 1.1A

(94.4 + 1.1)




6.7 + 1.9A

(90.0 + 1.9)




0.0 + 0.0

(0.0 + 0.0)

Acacia gilliesii

81.1 + 5.9B










61.1 + 10.6C










88.9 + 4.9A










60.0 + 3.9C










0.0 + 0.0







Acacia praecox

84.5 + 4.0A










71.1 + 4.4B










94.4 + 2.9A










88.9 + 4.4A










0.0 + 0.0







Aloysia gratissima

6.7 + 1.9A










14.4 + 5.9A










18.9 + 2.9A










0.0 + 0.0A










0.0 + 0.0







Aristida mendocina

76.0 + 2.0A










74.7 +2.9A










63.3 + 2.4B










66.0 + 8.3A










0.0 + 0.0







Aspidosperma quebracho-blanco

5.6 + 1.1A










12.2 + 4.0A










7.8 + 2.9A










3.3 + 1.9A










0.0 + 0.0







Castela coccinea

26.7 + 6.7A










15.0 + 2.9B





















6.7 + 4.4B










0.0 + 0.0







Celtis ehrenbergiana

6.7 + 1.9B










38.9 + 7.3A










24.5 + 6.2A










4.4 + 1.1B










0.0 + 0.0







Cenchrus ciliaris

71.3 + 8.4B










91.3 + 2.4A










88.0 + 6.1A










78.0 + 3.1B










12.7 + 5.5







Cercidium praecox

14.5 + 4.0B

(58.9 + 7.8)




5.6 + 2.9B

(71.1 + 4.0)




6.7 + 1.9B

(62.2 + 5.9)




25.5 + 6.2A

(62.2 + 9.9)




0.0 + 0.0

(0.0 + 0.0)

Condalia microphylla

4.5 + 2.2A










10.0 +3.9A










4.4 + 1.1A










1.1 + 1.1A










0.0 + 0.0







Geoffroea decorticans

5.6 + 2.9A










6.7 + 3.8A










0.0 + 0.0A










4.4 +1.1A










0.0 + 0.0







Gouinia paraguayensis

0.0 + 0.0A










7.8 + 2.2A










4.5 + 2.2A










1.1 + 1.1A










0.0 + 0.0







Justicia squarrosa

32.7 + 2.9A










19.3 + 1.8B










30.7 + 4.8A










33.3 + 7.1A










0.0 + 0.0







Larrea divaricata

17.8 + 5.9A










8.9 + 1.1A










4.4 + 1.1A










3.3 + 1.9A










0.0 + 0.0







Mimozyganthus carinatus

57.8 + 2.2A










60.0 + 8.4A










52.2 + 2.9A










61.1 + 6.7A










0.0 + 0.0







Moya spinosa

50.0 + 6.9B










71.1 + 4.0A










40.0 + 5.1C










53.3 + 1.9B










0.0 0.0







Neobouteloua lophostachya

52.0 + 3.1A










50.7 + 5.7A










54.0 + 4.2A










53.3 + 4.4A










4.0 + 4.0







Papophorum vaginatum

50.0 + 6.0A










63.3 + 2.4A










50.7 + 5.7A










56.7 + 4.1A










0.0 + 0.0







Prosopis chilensis

36.7 + 1.9A

(71.1 + 5.6)




47.8 + 1.1A

(80.0 + 1.9)




45.6 + 4.8A

(68.9 + 1.1)




26.7 + 6.7B

(56.7 + 5.1)




0.0 + 0.0

(0.0 + 0.0)

Prosopis flexuosa

7.8 + 1.1B

(11.1 + 1.1)




8.9 + 1.1B

(8.9 + 1.1)




15.6 + 5.9B

(20.0 + 5.8)




27.8 + 10.6A

(28.9 + 11.1)




14.5 + 4.0

(18.9 + 4.9)

Prosopis torquata

1.1 + 1.1A

(6.7 + 1.9)




0.0 +0.0A

(2.2 + 1.1)




0.0 + 0.0A

(2.2 + 1.1)




0.0 + 0.0A

(2.2 + 1.1)




1.1 + 1.1

(1.1 + 1.1)

Setaria pampeana

6.0 + 0.0A










6.0 + 2.0A










0.0 + 0.0A










0.0 + 0.0A










0.0 + 0.0







Trichloris spp. (crinita+pluriflora)

60.7 + 5.7B










67.3 + 4.1A










62.7 + 3.3B










60.7 + 3.7B










0.0 + 0.0







Tricomaria usillo

71.1 + 8.0A










53.3 + 11.5B
































0.0 + 0.0








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