不同氮肥处理对荸荠产量、淀粉积累速率及淀粉合成酶活性的影响

高美萍, 陶运荣, 蒋慧萍, 胡一凤, 林志城, 方彦蓉, 欧阳秀, 江文

Effects of Different Nitrogen Fertilizer Treatments on Yield, Starch Accumulation Rate and Starch Synthase Activity of Water Chestnut

Gao Meiping, Tao Yunrong, Jiang Huiping, Hu Yifeng, Lin Zhicheng, Fang Yanrong, Ouyang Xiu, Jiang Wen

表3 不同氮肥处理对荸荠球茎膨大过程中直链、支链和总淀粉积累的影响

Table 3 Effects of different nitrogen fertilizer treatments on the accumulation of amylose, amylopectin and total starch during the expansion of water chestnut corm %

施氮量 Nitrogen application rate 施氮方式 Nitrogen application method 直链淀粉含量 Amylose content 支链淀粉含量 Amylopectin content 总淀粉含量 Total starch content 82 97 112 127 82 97 112 127 82 97 112 127 N1 T1 9.5b 8.2b 6.7c 8.2b 30.9b 34.7bc 42.3b 44.9b 40.4c 42.9bc 49.0bc 53.1b T2 12.1a 11.2a 7.5b 9.2a 32.3b 35.9b 43.5b 46.0b 44.4b 47.1b 51.0b 55.3b T3 11.5a 10.6a 6.4c 7.7bc 35.0a 39.6b 45.2b 47.9b 46.5b 50.2a 51.6b 55.5b N2 T1 10.9b 9.7b 7.6b 9.0a 32.1b 37.7b 45.7b 47.4b 43.0b 47.4b 53.3b 56.4b T2 13.6a 11.2a 8.3a 10.1a 36.8a 40.7ab 49.1ab 51.0a 50.4a 51.9a 57.4a 61.1a T3 12.5a 10.8a 7.7b 8.5b 38.1a 45.6a 54.2a 56.9a 50.6a 56.4a 61.9a 65.4a N3 T1 6.7d 6.1c 5.0d 5.8d 29.0c 30.2c 33.4d 35.8d 35.7d 36.3d 38.4d 41.6d T2 9.4b 7.9b 6.1c 7.5bc 30.2b 32.1c 35.7c 36.0c 39.6c 40.0c 41.8c 43.5c T3 8.0c 7.1bc 5.8d 6.8c 32.6b 34.9bc 38.9c 39.0c 40.6c 42.0c 44.7c 45.8c CK － 6.9d 6.4c 5.8d 6.2c 29.6c 32.5c 37.9c 39.0c 36.5d 38.9d 43.7c 45.2c