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. 2018 Nov 21;13(11):e0207888. doi: 10.1371/journal.pone.0207888

Table 3. Average content in ascorbic acid (AAC, mg·100 g-1 fresh weight) estimated in the unripe and fully ripe fruits from the peppers studied, evaluated under organic and conventional conditions and regression coefficient (β) based on environmental means.

Genotype AAC unripe stage (mg·100 g-1) AAC fully ripe stage (mg·100 g-1)
Organic Conventional β Organic Conventional β
C. annuum
Bell peppers
    Bierzo 25.1 43.7 -157.55*** 120.9 102.3 1.04***
    CW Aguila F1 39.7 59.0 -163.66*** 150.6 142.1 0.48*
    CW breeding line 39.9 84.2 -376.35*** 150.8 112.7 2.14***
    Cuneo 27.5 45.0 -148.77*** 131.5 111.4 1.12***
    Najerano 24.7 17.4 62.31* 163.8 148.5 0.86***
    Pimiento Valenciano 18.2 52.3 -289.68*** 139.4 106.0 1.87***
    Mean 29.2 50.3 142.8 120.5
Other C. annuum
    Ancho 25.1 76.4 -435.57*** 126.3 188.9 -3.51***
    Arnoia 52.9 30.5 189.83*** 117.2 92.3 1.40***
    Berbere 26.4 57.0 -259.59*** 173.1 188.0 -0.83***
    Bola 55.2 87.0 -270.46*** 129.9 118.9 0.62**
    Chile de Arbol 20.0 25.3 -44.17* 143.2 98.8 2.49***
    Chimayo 76.4 22.4 458.42*** 182.6 148.8 1.89***
    Di Senise 65.1 54.1 93.63** 124.9 117.2 0.43NS
    Doux Long des Landes 14.0 31.0 -144.39*** 121.1 119.1 0.12NS
    Espelette 26.7 37.7 -93.75** 192.2 151.1 2.30***
    Gernika 72.9 92.6 -167.99*** 172.3 147.3 1.40***
    Guindilla Ibarra 29.8 26.4 28.83NS 123.2 95.7 1.54***
    Jalapa F1 23.9 10.2 116.07*** 93.9 88.9 0.28NS
    Jalapeno Candelaria 16.7 32.4 -132.79*** 66.2 66.2 0.00NS
    Jalapeno Espinalteco 18.5 22.7 -36.16NS 70.8 66.3 0.25NS
    Mojo Palmero 76.2 28.0 409.07*** 208.0 129.0 4.42***
    Numex 6–4 65.3 19.8 385.82*** 159.8 122.2 2.11***
    Numex Big Jim 57.4 44.2 112.12*** 175.8 147.8 1.57***
    Numex Conquistador 52.6 19.3 282.18*** 151.2 118.8 1.82***
    Padron 106.9 44.8 527.09*** 155.4 102.9 2.94***
    Pasilla 35.7 46.2 -89.05** 169.4 142.6 1.50***
    Petit Marsellais 121.1 93.5 234.14*** 178.1 196.2 -1.01***
    Piquillo 71.0 52.4 158.64*** 89.6 95.6 -0.33NS
    Serrano Criollo 63.4 25.2 323.88*** 179.2 110.8 3.83***
    Serrano 32.0 36.0 -34.43NS 89.3 48.0 2.31***
    Mean 49.5 42.3 141.4 120.9
C. annuum mean 45.4 43.9 141.7 120.8
Other Capsicum species
    Aji dulce 24.2 51.0 -227.05*** 47.9 68.7 -1.16***
    BOL-37R 54.5 82.3 -235.45*** 94.1 88.1 0.34NS
    BOL-58 31.2 28.2 25.54NS 68.5 74.6 -0.34NS
    BOL-144 26.1 93.5 -572.11*** 112.4 123.3 -0.61*
    ECU-973 19.0 40.5 -182.07*** 64.1 79.6 -0.87***
    ECU-994 46.6 35.4 94.89*** 104.1 117.1 -0.73**
    PI-152225 36.7 17.3 164.61*** 111.9 119.1 -0.40NS
Other Capsicum mean 34.0 49.7 86.2 95.8
Total mean 45.6 aa 45.5 a 134.5 b 116.7 a
Environmental effect 0.06 -0.06 8.93 -8.93
Standard error 5.39 5.97 8.59 9.48

NS, *, ** and *** indicate not significant for a probability p >0.05 and significant for p <0.05, 0.01 and 0.001, respectively, according to the statistical F ratio.

a Total means with different letters within each ripening stage indicate significant differences at p< 0.05.