不同时期干旱对淀粉型甘薯产量形成及淀粉糊化特性的影响

陈碧伟, 鞠玺凯, 孙一鸣, 李清华, 刘庆, 曾路生

Effects of Drought in Different Periods on Yield Formation and Starch Gelatinization Characteristics of Starchy Sweet Potato

Chen Biwei, Ju Xikai, Sun Yiming, Li Qinghua, Liu Qing, Zeng Lusheng

表2 不同时期干旱对薯干产量和甘薯淀粉率的影响

Table 2 Effects of drought stress in different periods on starch percentage of sweet potato

品种 Variety	处理 Treatment	鲜薯产量 Fresh potato yield (kg/hm²)	薯干产量 Dried potato yield (kg/hm²)	薯块干物率 Potato dry matter content (%)	薯干增产率 Yield increase (%)	淀粉率 Starch ratio (%)
商薯19号 Shangshu 19	CK	33 846.0±51.3a	9544.5±11.76a	28.2±0.48c	－	22.8±0.33a
商薯19号 Shangshu 19	T1	28 573.5±52.6c	8172.0±11.71c	28.6±0.14c	-14.3±0.25c	20.1±0.17c
	T2	31.8.5±67.5b	9372.0±16.61ab	30.1±0.30b	-1.8±0.15a	20.2±0.27c
	T3	29 476.5±98.8bc	9196.5±5.99b	31.2±0.32a	-3.6±0.10b	21.4±0.24b
烟薯29号 Yanshu 29	CK	31 849.5±33.2a	9612.0±13.83a	29.9±0.31c	－	24.4±0.51a
烟薯29号 Yanshu 29	T1	26 547.0±54.7c	8043.0±2.80c	30.3±0.05b	-16.3±0.45c	20.4±0.17c
	T2	28 669.5±57.8b	8928.0±9.24b	30.5±0.19b	-7.1±0.32b	20.5±0.25c
	T3	28 458.0±23.2b	9249.0±5.50ab	32.5±0.32a	-3.8±0.12a	21.1±0.11b