TABLE 1 Grain filling parameters under the condition of drought, heat and combined drought and heat stress around flowering in Exp. 1 and Exp. 2. TABLE 1 Grain filling parameters under the condition of drought, heat and combined drought and heat stress around flowering in Exp. 1 and Exp. 2. TABLE 1 Grain filling parameters under the condition of drought, heat and combined drought and heat stress around flowering in Exp. 1 and Exp. 2. TABLE 1 Grain filling parameters under the condition of drought, heat and combined drought and heat stress around flowering in Exp. 1 and Exp. 2. TABLE 1 Grain filling parameters under the condition of drought, heat and combined drought and heat stress around flowering in Exp. 1 and Exp. 2. TABLE 1 Grain filling parameters under the condition of drought, heat and combined drought and heat stress around flowering in Exp. 1 and Exp. 2. TABLE 1 Grain filling parameters under the condition of drought, heat and combined drought and heat stress around flowering in Exp. 1 and Exp. 2. TABLE 1 Grain filling parameters under the condition of drought, heat and combined drought and heat stress around flowering in Exp. 1 and Exp. 2. TABLE 1 Grain filling parameters under the condition of drought, heat and combined drought and heat stress around flowering in Exp. 1 and Exp. 2. TABLE 1 Grain filling parameters under the condition of drought, heat and combined drought and heat stress around flowering in Exp. 1 and Exp. 2.
Parameters Superior grains Superior grains Superior grains Superior grains Inferior grains Inferior grains Inferior grains Inferior grains
CK DS HS DHS CK DS HS DHS
Exp. 1 Exp. 1 Exp. 1 Exp. 1 Exp. 1 Exp. 1 Exp. 1 Exp. 1 Exp. 1 Exp. 1
Phase I (days) 17.83a 17.59a 17.87a 18.41a 19.29a 17.66b 18.09ab 17.98b
Phase Ⅱ (days) 15.31a 10.66c 10.75bc 13.16b 10.87a 10.66a 10.88a 10.53a
Phase Ⅲ (days) 19.06a 13.27c 13.38c 16.39b 13.55a 13.27a 13.55a 13.11a
Total Phase (days) 52.19a 41.53b 42.00b 47.96b 43.72a 41.59b 42.52ab 41.63b
V1 (mg grain-1 d-1) 3.20 a 2.78b 2.91ab 2.56b 2.63a 2.66a 2.81a 2.58a
V2 (mg grain-1 d-1) 10.18c 12.51b 13.21a 9.78c 12.73a 12.02a 12.73a 12.06a
V3 (mg grain-1 d-1) 2.85b 3.51a 3.70a 2.74b 3.57a 3.37a 3.56a 3.38a
V (mg grain-1 d-1) 5.17a 5.56a 5.86a 4.65b 5.64a 5.34b 5.49b 5.28c
Exp. 2 Exp. 2 Exp. 2 Exp. 2 Exp. 2 Exp. 2 Exp. 2 Exp. 2 Exp. 2 Exp. 2
Phase I (days) 15.94a 14.68a 14.59a 16.92a 15.28b 15.09b 21.02a 16.97b
Phase Ⅱ (days) 15.13b 15.13b 17.10a 18.54a 16.56b 14.71bc 20.25a 21.58a
Phase Ⅲ (days) 18.84b 18.84b 21.29a 23.08a 20.62b 18.32bc 25.23a 26.87a
Total Phase (days) 49.92c 48.65c 52.98b 58.55a 52.46b 48.12c 66.49a 65.42a
V1 (mg grain-1 d-1) 2.94a 2.20b 2.06b 1.96b 2.30a 1.45c 1.85ab 1.71b
V2 (mg grain-1 d-1) 8.47a 5.84b 4.79b 4.89b 5.81a 4.08b 5.24ab 3.66b
V3 (mg grain-1 d-1) 2.37a 1.63b 1.34b 1.37b 1.63a 1.14c 1.47b 1.03c
V (mg grain-1 d-1) 4.45a 3.14b 2.68b 2.68b 3.18a 2.16c 2.77b 2.09c
Note: Phase I: Slow-increase period; Phase Ⅱ: Fast-increase period; Phase Ⅲ: Slight-increase period; Total Phase: Filling duration period; V1: Mean filling rate of slow-increase period; V2: Mean filling rate of fast-increase period; V3: Mean filling rate of slight-increase period; V: Mean filling rate. Values the same line followed by different letters are significantly different at P< 0.05, comparisons within the same parameter only. CK, control treatment. DS, drought stress treatment. HS, heat stress treatment. DHS, combined drought and heat stress treatment. Note: Phase I: Slow-increase period; Phase Ⅱ: Fast-increase period; Phase Ⅲ: Slight-increase period; Total Phase: Filling duration period; V1: Mean filling rate of slow-increase period; V2: Mean filling rate of fast-increase period; V3: Mean filling rate of slight-increase period; V: Mean filling rate. Values the same line followed by different letters are significantly different at P< 0.05, comparisons within the same parameter only. CK, control treatment. DS, drought stress treatment. HS, heat stress treatment. DHS, combined drought and heat stress treatment. Note: Phase I: Slow-increase period; Phase Ⅱ: Fast-increase period; Phase Ⅲ: Slight-increase period; Total Phase: Filling duration period; V1: Mean filling rate of slow-increase period; V2: Mean filling rate of fast-increase period; V3: Mean filling rate of slight-increase period; V: Mean filling rate. Values the same line followed by different letters are significantly different at P< 0.05, comparisons within the same parameter only. CK, control treatment. DS, drought stress treatment. HS, heat stress treatment. DHS, combined drought and heat stress treatment. Note: Phase I: Slow-increase period; Phase Ⅱ: Fast-increase period; Phase Ⅲ: Slight-increase period; Total Phase: Filling duration period; V1: Mean filling rate of slow-increase period; V2: Mean filling rate of fast-increase period; V3: Mean filling rate of slight-increase period; V: Mean filling rate. Values the same line followed by different letters are significantly different at P< 0.05, comparisons within the same parameter only. CK, control treatment. DS, drought stress treatment. HS, heat stress treatment. DHS, combined drought and heat stress treatment. Note: Phase I: Slow-increase period; Phase Ⅱ: Fast-increase period; Phase Ⅲ: Slight-increase period; Total Phase: Filling duration period; V1: Mean filling rate of slow-increase period; V2: Mean filling rate of fast-increase period; V3: Mean filling rate of slight-increase period; V: Mean filling rate. Values the same line followed by different letters are significantly different at P< 0.05, comparisons within the same parameter only. CK, control treatment. DS, drought stress treatment. HS, heat stress treatment. DHS, combined drought and heat stress treatment. Note: Phase I: Slow-increase period; Phase Ⅱ: Fast-increase period; Phase Ⅲ: Slight-increase period; Total Phase: Filling duration period; V1: Mean filling rate of slow-increase period; V2: Mean filling rate of fast-increase period; V3: Mean filling rate of slight-increase period; V: Mean filling rate. Values the same line followed by different letters are significantly different at P< 0.05, comparisons within the same parameter only. CK, control treatment. DS, drought stress treatment. HS, heat stress treatment. DHS, combined drought and heat stress treatment. Note: Phase I: Slow-increase period; Phase Ⅱ: Fast-increase period; Phase Ⅲ: Slight-increase period; Total Phase: Filling duration period; V1: Mean filling rate of slow-increase period; V2: Mean filling rate of fast-increase period; V3: Mean filling rate of slight-increase period; V: Mean filling rate. Values the same line followed by different letters are significantly different at P< 0.05, comparisons within the same parameter only. CK, control treatment. DS, drought stress treatment. HS, heat stress treatment. DHS, combined drought and heat stress treatment. Note: Phase I: Slow-increase period; Phase Ⅱ: Fast-increase period; Phase Ⅲ: Slight-increase period; Total Phase: Filling duration period; V1: Mean filling rate of slow-increase period; V2: Mean filling rate of fast-increase period; V3: Mean filling rate of slight-increase period; V: Mean filling rate. Values the same line followed by different letters are significantly different at P< 0.05, comparisons within the same parameter only. CK, control treatment. DS, drought stress treatment. HS, heat stress treatment. DHS, combined drought and heat stress treatment. Note: Phase I: Slow-increase period; Phase Ⅱ: Fast-increase period; Phase Ⅲ: Slight-increase period; Total Phase: Filling duration period; V1: Mean filling rate of slow-increase period; V2: Mean filling rate of fast-increase period; V3: Mean filling rate of slight-increase period; V: Mean filling rate. Values the same line followed by different letters are significantly different at P< 0.05, comparisons within the same parameter only. CK, control treatment. DS, drought stress treatment. HS, heat stress treatment. DHS, combined drought and heat stress treatment. Note: Phase I: Slow-increase period; Phase Ⅱ: Fast-increase period; Phase Ⅲ: Slight-increase period; Total Phase: Filling duration period; V1: Mean filling rate of slow-increase period; V2: Mean filling rate of fast-increase period; V3: Mean filling rate of slight-increase period; V: Mean filling rate. Values the same line followed by different letters are significantly different at P< 0.05, comparisons within the same parameter only. CK, control treatment. DS, drought stress treatment. HS, heat stress treatment. DHS, combined drought and heat stress treatment.