Effects of Two Crops on Clonal Growth and Node Reproduction of Invasive Alternanthera philoxeroides

doi:10.11924/j.issn.1000-6850.casb2024-0034

Abstract

Abstract:

This investigation seeks to explore the effects of diverse intervention strategies employing Ipomoea batatas and Cymbopogon citratus on the Alternanthera philoxeroides growth, aiming to furnish a robust scientific foundation for its ecological management. Ground sweet potato and lemongrass parts were applied via mulching, soil mixing, and extracts to A. philoxeroides, and the effects of different treatments were evaluated by measuring its survival rate, biomass, and enzyme activity. Under 100 g/kg treatment, survival rates decreased to 55.56% (sweet potato, soil mixing) and 43.75% (lemongrass extract). High-concentration extract irrigation significantly reduced stem length (Ipomoea batatas: 3.37 cm, Cymbopogon citratus: 2.25 cm), root length (Ipomoea batatas: 3.34 cm, Cymbopogon citratus: 2.62 cm), leaf area (Ipomoea batatas: 0.46 cm², Cymbopogon citratus: 0.37 cm²), and biomass (Ipomoea batatas: 0.19 g, Cymbopogon citratus: 0.13 g). Additionally, the increase of concentration led to the elevation of superoxide dismutase (SOD) and catalase (CAT) activities, as well as the content of malondialdehyde (MDA), while the activity of peroxidase (POD) decreased, reflecting the changes in plant response to oxidative stress. This study unequivocally illustrates that treatments with a 100 g/kg concentration of Ipomoea batatas and Cymbopogon citratus substantially curtail the clonal expansion and seedling development of A. philoxeroides, particularly when applied through aqueous extract irrigation. These findings are of great significance for the development of new plant growth regulation strategies.

Key words: Alternanthera philoxeroides, ipomoea batatas, cymbopogon citratus, clonal proliferation

WU Randi, GE Liqing, ZHANG Fudou, SHEN Shicai, YANG Yunhai, YANG Shaosong, ZHENG Fengping, FAN Zewen, GAO Jiale, XU Gaofeng. Effects of Two Crops on Clonal Growth and Node Reproduction of Invasive Alternanthera philoxeroides[J]. Chinese Agricultural Science Bulletin, 2024, 40(14): 104-111.

Figures/Tables 3

References 32

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处理方式	浓度/(g/kg)	存活率/%
处理方式	浓度/(g/kg)	红薯	香茅草
表层覆盖	100	87.50±2.06Abc	89.13±3.78Abc
	80	84.38±1.39Abcd	88.13±2.34Abc
	60	86.50±1.92Abc	90.50±1.65Abc
	40	85.00±3.36Abcd	89.38±3.48Abc
	20	87.50±2.47Abc	90.63±1.53Abc
混土栽培	100	55.56±5.61Af	50.00±6.17Ahi
	80	61.11±6.25Bef	78.89±4.44Acde
	60	66.67±6.70Bef	88.89±3.27Abc
	40	83.33±3.3B3bc	94.44±5.56Aab
	20	85.33±1.59Bbc	95.44±5.56Aab
水提液浇灌	100	56.25±3.13Af	43.75±3.31Bi
	80	65.63±7.87Aef	59.38±1.95Bgh
	60	71.88±5.57Ade	65.63±2.00Bfg
	40	78.13±1.59Abcd	71.88±3.95Bef
	20	100.00±0.00Aa	75.00±2.19Bdef
CK	--	100.00±0.00Aa	100.00±0.00Aa

处理方式	浓度/(g/kg)	存活率/%
处理方式	浓度/(g/kg)	红薯	香茅草
表层覆盖	100	87.50±2.06Abc	89.13±3.78Abc
	80	84.38±1.39Abcd	88.13±2.34Abc
	60	86.50±1.92Abc	90.50±1.65Abc
	40	85.00±3.36Abcd	89.38±3.48Abc
	20	87.50±2.47Abc	90.63±1.53Abc
混土栽培	100	55.56±5.61Af	50.00±6.17Ahi
	80	61.11±6.25Bef	78.89±4.44Acde
	60	66.67±6.70Bef	88.89±3.27Abc
	40	83.33±3.3B3bc	94.44±5.56Aab
	20	85.33±1.59Bbc	95.44±5.56Aab
水提液浇灌	100	56.25±3.13Af	43.75±3.31Bi
	80	65.63±7.87Aef	59.38±1.95Bgh
	60	71.88±5.57Ade	65.63±2.00Bfg
	40	78.13±1.59Abcd	71.88±3.95Bef
	20	100.00±0.00Aa	75.00±2.19Bdef
CK	--	100.00±0.00Aa	100.00±0.00Aa

处理方式	浓度/	叶面积/cm²		生物量/g
处理方式	(g/kg)	红薯	香茅草	红薯	香茅草
表层覆盖	100	5.42±0.41Bde	7.06±0.52Aab	3.21±0.08Bgh	3.98±0.06Afg
	80	6.39±0.18Bbc	7.42±0.29Aa	3.35±0.05Bg	4.01±0.08Afg
	60	6.96±0.24Aab	7.51±0.34Aa	3.37±0.06Bg	4.16±0.11Adef
	40	7.31±0.21Aa	7.54±0.46Aa	4.25±0.13Acd	4.25±0.10Ade
	20	7.63±0.20Aa	7.69±0.33Aa	5.94±0.14Aa	5.91±0.13Aa
混土栽培	100	4.51±0.18Bfg	5.97±0.24Av	3.50±0.10Bg	3.90±0.16Ag
	80	5.13±0.24Bef	6.11±0.36Ac	3.98±0.12Bf	4.11±0.13Adef
	60	5.50±0.15Bde	6.47±0.41Abc	4.15±0.13Ade	4.26±0.12Ade
	40	5.81±0.24Bcd	6.96±0.29Aab	4.32±0.19Ac	4.68±0.13Ac
	20	6.97±0.28Aab	7.15±0.27Aa	5.44±0.37Bb	5.29±0.11Ab
水提液浇灌	100	3.37±0.08Ai	2.52±0.14Bf	3.34±0.04Ag	2.63±0.05Bj
	80	3.61±0.14Ahi	3.15±0.27Bef	3.46±0.03Ag	3.21±0.04Ai
	60	3.84±0.11Aghi	3.42±0.15Be	3.76±0.05Afg	3.73±0.12Ah
	40	4.21±0.24Agh	3.86±0.29Bde	4.27±0.08Acd	3.97±0.09Afg
	20	4.96±0.19Af	4.32±0.21Bd	5.41±0.08Ac	4.54±0.07Ac
CK	--	7.58±0.18Aa	7.58±0.18Aa	6.04±0.12Aa	6.04±0.12Aa
处理方式	浓度/	叶面积/cm²		生物量/g
处理方式	(g/kg)	红薯	香茅草	红薯	香茅草
表层覆盖	100	1.08±0.03Ac	1.24±0.05Abc	0.35±0.02Abc	0.43±0.03Aa
	80	1.13±0.05Bbc	1.31±0.04Aabc	0.41±0.03Ab	0.43±0.02Aa
	60	1.15±0.06Bbc	1.38±0.08Aab	0.41±0.01Ab	0.45±0.04Aa
	40	1.17±0.06Bbc	1.43±0.10Aa	0.43±0.04Aab	0.46±0.02Aa
	20	1.26±0.06Ab	1.45±0.11Aa	0.47±0.03Aa	0.48±0.04Aa
混土栽培	100	0.84±0.03Aef	0.87±0.06Af	0.21±0.02Aef	0.29±0.03Ac
	80	0.87±0.05Aef	0.91±0.09Aef	0.25±0.03Be	0.38±0.04Ab
	60	0.89±0.06Ade	0.96±0.10Aef	0.27±0.02Bde	0.39±0.02Ab
	40	0.91±0.08Ade	1.04±0.11Ade	0.29±0.04Bde	0.41±0.02Aab
	20	1.03±0.1A1cd	1.15±0.09Acd	0.43±0.02Aab	0.44±0.03Aa
水提液浇灌	100	0.46±0.03Ai	0.37±0.02Ah	0.19±0.01Af	0.13±0.02Ae
	80	0.55±0.02Ahi	0.41±0.02Bh	0.21±0.02Aef	0.16±0.01Ad
	60	0.67±0.07Agh	0.52±0.03Bgh	0.24±0.01Ae	0.18±0.03Ad
	40	0.75±0.05Afg	0.59±0.03Bg	0.25±0.03Ae	0.21±0.02Acd
	20	0.81±0.07Aef	0.63±0.05Bg	0.31±0.02Acd	0.28±0.02Ac
CK	--	1.42±0.13Aa	1.42±0.13Aa	0.49±0.04Aa	0.49±0.04Aa

处理方式	浓度/	叶面积/cm²		生物量/g
处理方式	(g/kg)	红薯	香茅草	红薯	香茅草
表层覆盖	100	5.42±0.41Bde	7.06±0.52Aab	3.21±0.08Bgh	3.98±0.06Afg
	80	6.39±0.18Bbc	7.42±0.29Aa	3.35±0.05Bg	4.01±0.08Afg
	60	6.96±0.24Aab	7.51±0.34Aa	3.37±0.06Bg	4.16±0.11Adef
	40	7.31±0.21Aa	7.54±0.46Aa	4.25±0.13Acd	4.25±0.10Ade
	20	7.63±0.20Aa	7.69±0.33Aa	5.94±0.14Aa	5.91±0.13Aa
混土栽培	100	4.51±0.18Bfg	5.97±0.24Av	3.50±0.10Bg	3.90±0.16Ag
	80	5.13±0.24Bef	6.11±0.36Ac	3.98±0.12Bf	4.11±0.13Adef
	60	5.50±0.15Bde	6.47±0.41Abc	4.15±0.13Ade	4.26±0.12Ade
	40	5.81±0.24Bcd	6.96±0.29Aab	4.32±0.19Ac	4.68±0.13Ac
	20	6.97±0.28Aab	7.15±0.27Aa	5.44±0.37Bb	5.29±0.11Ab
水提液浇灌	100	3.37±0.08Ai	2.52±0.14Bf	3.34±0.04Ag	2.63±0.05Bj
	80	3.61±0.14Ahi	3.15±0.27Bef	3.46±0.03Ag	3.21±0.04Ai
	60	3.84±0.11Aghi	3.42±0.15Be	3.76±0.05Afg	3.73±0.12Ah
	40	4.21±0.24Agh	3.86±0.29Bde	4.27±0.08Acd	3.97±0.09Afg
	20	4.96±0.19Af	4.32±0.21Bd	5.41±0.08Ac	4.54±0.07Ac
CK	--	7.58±0.18Aa	7.58±0.18Aa	6.04±0.12Aa	6.04±0.12Aa
处理方式	浓度/	叶面积/cm²		生物量/g
处理方式	(g/kg)	红薯	香茅草	红薯	香茅草
表层覆盖	100	1.08±0.03Ac	1.24±0.05Abc	0.35±0.02Abc	0.43±0.03Aa
	80	1.13±0.05Bbc	1.31±0.04Aabc	0.41±0.03Ab	0.43±0.02Aa
	60	1.15±0.06Bbc	1.38±0.08Aab	0.41±0.01Ab	0.45±0.04Aa
	40	1.17±0.06Bbc	1.43±0.10Aa	0.43±0.04Aab	0.46±0.02Aa
	20	1.26±0.06Ab	1.45±0.11Aa	0.47±0.03Aa	0.48±0.04Aa
混土栽培	100	0.84±0.03Aef	0.87±0.06Af	0.21±0.02Aef	0.29±0.03Ac
	80	0.87±0.05Aef	0.91±0.09Aef	0.25±0.03Be	0.38±0.04Ab
	60	0.89±0.06Ade	0.96±0.10Aef	0.27±0.02Bde	0.39±0.02Ab
	40	0.91±0.08Ade	1.04±0.11Ade	0.29±0.04Bde	0.41±0.02Aab
	20	1.03±0.1A1cd	1.15±0.09Acd	0.43±0.02Aab	0.44±0.03Aa
水提液浇灌	100	0.46±0.03Ai	0.37±0.02Ah	0.19±0.01Af	0.13±0.02Ae
	80	0.55±0.02Ahi	0.41±0.02Bh	0.21±0.02Aef	0.16±0.01Ad
	60	0.67±0.07Agh	0.52±0.03Bgh	0.24±0.01Ae	0.18±0.03Ad
	40	0.75±0.05Afg	0.59±0.03Bg	0.25±0.03Ae	0.21±0.02Acd
	20	0.81±0.07Aef	0.63±0.05Bg	0.31±0.02Acd	0.28±0.02Ac
CK	--	1.42±0.13Aa	1.42±0.13Aa	0.49±0.04Aa	0.49±0.04Aa