Page 93 - 《华中农业大学学报（自然科学版）》2022年第5期

第 5 期 刘小曼 等：镁肥对温州蜜柑果实产量及品质的影响 87

表 2 不同镁水平对温州蜜柑果皮色差值的影响（2019—2020年）
Table 2 Effect of different Mg application levels on the color difference of satsuma mandarin peel from 2019 to 2020
年份 时期 处理 L a b C H
Year Period Treatment
CK 46.45±0.28b -7.46±0.52c 33.04±0.68b 33.08±0.55b 102.76±1.58a
转色期 T1 47.96±2.47b -7.17±1.72c 35.28±3.97b 36.15±3.68b 102.14±5.07a
Turning T2 61.06±0.55a 4.16±1.79b 56.47±1.82a 56.68±1.88a 85.86±2.52b
color period T3 63.95±0.55a 10.91±2.37a 60.71±0.61a 61.76±1.00a 79.87±2.96bc
T4 62.45±0.22a 13.21±0.63a 58.99±1.02a 60.46±1.00a 77.37±0.88c
2019
CK 62.97±0.78a 26.74±1.36b 54.05±1.21a 60.35±1.22a 48.00±1.12a
T1 62.89±0.85a 27.98±1.06ab 53.67±1.27a 60.57±0.84a 47.43±1.21a
成熟期
T2 63.11±0.85a 29.60±0.53ab 54.30±0.79a 61.86±0.61a 46.97±0.62a
Ripening period
T3 62.12±0.29a 30.44±1.34a 53.12±0.52a 61.26±0.70a 46.41±1.10a
T4 61.90±0.66a 29.13±0.90ab 52.67±0.73a 60.21±0.64a 46.81±0.85a
CK 58.90±0.34b 1.88±0.60b 38.75±0.62b 38.80±0.64b 56.70±0.26a
转色期 T1 63.09±0.85a 11.14±1.78a 46.37±1.38a 47.75±1.72a 53.21±0.63b
Turning T2 63.63±1.38a 15.09±2.19a 47.07±2.32a 49.50±2.83a 51.66±0.67c
color period T3 64.22±0.48a 15.50±1.00a 47.86±0.81a 50.32±1.01a 51.52±0.35c
T4 64.61±0.05a 15.11±0.93a 48.76±0.19a 51.07±0.33a 51.79±0.38ab
2020
CK 63.71±0.67a 25.81±0.84a 40.76±0.90a 48.28±0.64ab 45.15±0.61a
T1 63.19±0.07a 26.89±0.27a 39.55±0.18a 47.83±0.25b 44.24±0.13a
成熟期
T2 63.53±0.56a 27.49±0.18a 40.32±0.82a 48.81±0.72ab 44.18±0.26a
Ripening period
T3 63.38±0.31a 27.12±0.60a 40.53±0.66a 48.78±0.54ab 44.44±0.43a
T4 64.09±0.35a 26.94±0.53a 41.70±0.55a 49.66±0.44a 44.91±0.36a
表 3 不同镁水平对温州蜜柑果皮色素的影响（2019—2020年）
Table 3 Effect of different Mg application levels on peel pigment of satsuma mandarin from 2019 to 2020
μ g/g
年份 时期 处理 叶绿素a 叶绿素b 总叶绿素 类胡萝卜素
Year Period Treatment Chlorophyll a Chlorophyll b Total chlorophyll Carotenoid
CK 23.54±2.30a 19.25±0.63a 42.79±2.88a 13.29±1.37b
转色期 T1 23.76±6.13a 19.83±2.21a 43.59±8.34a 13.71±0.97b
Turning T2 13.35±1.41b 14.99±0.45ab 28.34±1.69b 17.83±0.81b
color period T3 12.99±1.39b 18.20±2.71ab 31.19±3.96ab 24.95±1.95a
T4 9.53±0.43b 13.54±0.62b 23.07±1.01b 17.19±1.71b
2019
CK 5.41±0.15a 8.79±0.24ab 14.20±0.32ab 13.70±2.34b
T1 5.21±0.34a 8.57±0.27b 13.78±0.61b 15.21±1.89ab
成熟期
T2 5.22±0.22a 9.07±0.31ab 14.29±0.52ab 19.96±3.22ab
Ripening period
T3 5.65±0.16a 9.55±0.18a 16.11±0.97a 17.73±1.08ab
T4 5.31±0.23a 9.14±0.39ab 14.45±0.62ab 22.23±2.12a
CK 28.47±0.86a 15.57±0.63a 44.04±1.29a 17.06±0.95a
转色期 T1 17.60±1.74b 13.00±1.44ab 30.60±3.16b 17.98±0.78a
Turning T2 15.79±2.43b 12.14±1.01b 27.94±3.36b 17.80±0.96a
color period T3 14.13±1.23b 11.16±0.73b 25.30±1.95b 14.92±1.36ab
T4 12.85±1.10b 11.26±0.38b 24.11±1.47b 12.84±1.00b
2020
CK 5.58±0.25a 9.36±0.35a 14.94±0.58a 27.08±3.13a
T1 5.31±0.31a 8.99±0.34a 14.30±0.63a 26.39±1.59a
成熟期
T2 5.13±0.08a 8.70±0.08a 13.83±0.16a 25.65±3.72a
Ripening period
T3 4.96±0.19a 8.74±0.30a 13.70±0.49a 19.68±2.06ab
T4 5.08±0.18a 9.34±0.53a 14.42±0.52a 17.17±1.39b