Cultivar/seedling | Average leaf area (cm2) | Petiole length (cm) | Stomata per cm2 | Foliarx N(%) | Chlorophyllcontent (SPAD) |
---|---|---|---|---|---|
Autumn Blaze | 83.9 cw | 11.8 cde | 91,350 a | 2.3 cde | 42.5 e |
Autumn Flame | 40.0 f | 12.3 cd | 68,270 f | 2.6 a | 46.2 b |
Fairview Flame | 58.3 de | 15.4 b | 63,460 i | 2.4 abc | 45.8 be |
Franksred | 53.4 e | 9.3 g | 76,410 b | 2.2 de | 52.0 a |
Karpick | 66.2 d | 9.6 fg | 70,190 e | 2.1 de | 45.3 bed |
Morgan | 93.6 b | 11.5 cde | 65,710 g | 2.2 de | 42.9 de |
Northwood | 54.7 e | 10.6 ef | 66,350 g | 2.4 abed | 51.1 a |
October Glory | 61.9 de | 17.1 a | 64,420 h | 2.5 ab | 43.2 de |
Redskin | 65.6 d | 11.4 de | 67,630 f | 2.0 e | 41.8 e |
Scarsen | 131.5a | 12.7 c | 53,420 j | 2.5 abc | 43.1 de |
Schlesingeri | 66.6 d | 12.5 cd | 72,440 c | 2.3 bed | 49.6 a |
Seedling | 53.2 e | 6.2 h | 71,450 d | 2.1 e | 43.5 cde |
Tilford | 60.5 de | 9.3 g | 67,310 g | 2.2 de | 42.9 de |
Original Auburn collection | |||||
Armstrong | 84.4 ay | 15.8 a | 68,270 a | 2.2 a | 44.2 a |
Bowhall | 89.6 a | 12.3 b | 55,130 c | 2.2 a | 41.8 a |
Gerling | 54.6 b | 11.4 c | 60,580 b | 2.0 a | 44.2 a |
↵z Means by column derived from: 520 leaves, 520 leaves, 260 leaf peels, 7800 samples, and 7800 samples, respectively.
↵y Means Original Collectionn from: 120 leaves, 120 leaves, 60 leaf peels, 1800 samples, and 1800 samples, respectively.
↵x Nitrogen levels determined with LECO CHN-600 analyzer (LECO Corp., St. Joseph, Ml).
↵w Mean separation within columns by Duncan’s Multiple Range Test, P = 0.05.