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Table 4 Comparisons of reproductive characteristics between the induced tetraploids and their corresponding diploid F. tataricum cultivars

From: Morphological, physiological, cytological and phytochemical studies in diploid and colchicine-induced tetraploid plants of Fagopyrum tataricum (L.) Gaertn

Reproductive characteristic Qianwei 2# Jinku 2# Chuanqiao 1# Liuqiao 1#
4x 2x 4x 2x 4x 2x 4x 2x
Vertical length of flower bud (mm) 4.12 ± 0.16A 3.23 ± 0.22B 4.01 ± 0.24a 3.36 ± 0.25b 3.99 ± 0.20a 3.37 ± 0.15b 4.19 ± 0.23A 3.30 ± 0.11B
Transverse diameter of flower bud (mm) 2.35 ± 0.18A 1.88 ± 0.21B 2.22 ± 0.12A 1.79 ± 0.20B 2.31 ± 0.15a 2.01 ± 0.11b 2.68 ± 0.17A 1.90 ± 0.23B
Flower diameter (mm) 5.15 ± 0.26A 3.68 ± 0.20B 6.35 ± 0.32A 3.24 ± 0.19B 5.45 ± 0.25A 3.56 ± 0.18B 6.41 ± 0.20A 3.29 ± 0.12B
Length of petal (mm) 2.69 ± 0.11A 1.63 ± 0.12B 3.01 ± 0.18A 1.51 ± 0.18B 2.23 ± 0.13A 1.25 ± 0.20B 2.95 ± 0.09A 1.17 ± 0.18B
Width of petal (mm) 0.90 ± 0.03A 0.52 ± 0.06B 0.97 ± 0.09A 0.49 ± 0.02B 0.88 ± 0.07A 0.40 ± 0.05B 0.95 ± 0.03A 0.38 ± 0.08B
Pollen grain diameter (μm) 5.01 ± 0.34A 3.91 ± 0.28B 5.57 ± 0.34A 3.82 ± 0.23B 4.98 ± 0.31A 3.88 ± 0.28B 5.55 ± 0.27A 3.89 ± 0.31B
Pollen-vigorous (%) 20.35 ± 1.38B 49.36 ± 3.21A 18.89 ± 1.34B 42.66 ± 2.89A 19.67 ± 1.89B 45.89 ± 2.92A 17.89 ± 1.25B 40.96 ± 3.01A
No. of inflorescences per plant 42 ± 6a 39 ± 8a 37 ± 7a 35 ± 8a 43 ± 7a 39 ± 5a 38 ± 9a 33 ± 5a
Average length of inflorescence (cm) 8.91 ± 4.25a 10.35 ± 4.36a 7.89 ± 5.02a 10.78 ± 5.21a 7.34 ± 4.56a 9.67 ± 3.89a 6.99 ± 4.23a 10.36 ± 5.01a
No. of flowers per inflorescence 34 ± 21a 67 ± 31a 42 ± 20a 73 ± 26a 39 ± 25a 71 ± 30a 49 ± 22a 77 ± 31a
Thousand-seed weight (g) 24.41 ± 3.67A 19.38 ± 2.25B 22.66 ± 1.89A 19.11 ± 1.12B 31.59 ± 1.35A 18.12 ± 0.98B 26.84 ± 2.01A 17.57 ± 1.03B
Seed size (mm) 8.29 ± 0.84A 5.86 ± 0.73B 8.10 ± 0.35A 6.01 ± 0.34B 7.20 ± 0.17A 5.63 ± 0.22B 7.17 ± 0.24A 5.42 ± 0.11B
  1. Different small-case/capital letters indicate the significance of difference between two mean values at the p = 0.05/0.01 level, respectively, as tested by two-sample t test, the same below