Exogenous Glucosamine: Effects on the Growth of Hydroponic Maize Seedlings

doi:10.11923/j.issn.2095-4050.cjas2021-0151

Abstract

Abstract:

To investigate the effect of exogenous glucosamine on the growth and development of crops, maize seedlings were used as materials in hydroponic culture without stress. The effects of different concentrations of exogenous glucosamine on plant height, stem diameter, chlorophyll content, root system, plant fresh weight and root fresh weight of maize seedlings were studied. The results showed that all the parameters were increased by some degrees compared with those of the control under 0.1-5 mg/L glucosamine treatment. The stem diameter, plant fresh weight and root fresh weight of maize treated with 2 mg/L glucosamine were increased by 11.30%, 26.58% and 19.32%, respectively. In addition, the total root length, root surface area, and the total branch number of root were increased by glucosamine treatment, and the maximum increase was found in the treatment of 2 mg/L. The chlorophyll content was increased along with the glucosamine concentration. Taken together, the growth and development of maize seedlings are improved by different concentrations of glucosamine, and the suggested dosage is 2 mg/L in this study. Glucosamine, as a novo natural synergy material, its effect on crop growth needs more study.

Key words: glucosamine, maize seedlings, hydroponics, root growth, chlorophyll content

LIU Hui, YANG Xiaoyun, SONG Weijie, HU Juwei, SONG Tao. Exogenous Glucosamine: Effects on the Growth of Hydroponic Maize Seedlings[J]. Journal of Agriculture, 2023, 13(1): 1-5.

Figures/Tables 4

References 25

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处理	氨基葡萄糖浓度/(mg/L)
CK	0
T1	0.1
T2	0.5
T3	1
T4	2
T5	5

处理	氨基葡萄糖浓度/(mg/L)
CK	0
T1	0.1
T2	0.5
T3	1
T4	2
T5	5

处理	株高/cm	茎粗/mm	植株鲜重（单株重）/g	根系鲜重（单株重）/g
CK	27.22±0.69a	3.01±0.40a	1.58±0.24b	0.71±0.13b
T1	28.92±2.27a	3.07±0.39a	1.80±0.10ab	0.80±0.11ab
T2	29.18±1.08a	3.10±0.37a	1.78±0.21ab	0.76±0.12ab
T3	28.78±0.65a	3.22±0.43a	1.73±0.24b	0.79±0.09ab
T4	28.95±1.65a	3.35±0.39a	2.00±0.27a	0.88±0.18a
T5	30.76±3.60a	3.07±0.23a	1.72±0.16b	0.71±0.08b

处理	株高/cm	茎粗/mm	植株鲜重（单株重）/g	根系鲜重（单株重）/g
CK	27.22±0.69a	3.01±0.40a	1.58±0.24b	0.71±0.13b
T1	28.92±2.27a	3.07±0.39a	1.80±0.10ab	0.80±0.11ab
T2	29.18±1.08a	3.10±0.37a	1.78±0.21ab	0.76±0.12ab
T3	28.78±0.65a	3.22±0.43a	1.73±0.24b	0.79±0.09ab
T4	28.95±1.65a	3.35±0.39a	2.00±0.27a	0.88±0.18a
T5	30.76±3.60a	3.07±0.23a	1.72±0.16b	0.71±0.08b

处理	总根长/cm	根表面积/cm²	根平均直径/mm	总分枝数/个	总交叉数/个
CK	225.7±62.4b	29.5±7.0b	0.420±0.03a	200.5±48.5b	482.8±137.7b
T1	367.6±19.0a	43.0±2.7a	0.372±0.02b	269.8±24.6a	921.5±156.5a
T2	366.0±60.8a	43.5±5.7a	0.380±0.02b	247.3±29.6ab	844.8±230.9a
T3	334.8±101.9a	40.3±11.2a	0.385±0.01b	236.8±59.0ab	849.8±231.3a
T4	374.8±43.4a	44.8±5.8a	0.381±0.03b	296.8±28.7a	888.3±199.5a
T5	348.1±27.9a	41.4±4.0a	0.378±0.02b	287.0±27.9a	899.5±166.1a