豚草和三裂叶豚草拮抗植物的筛选

doi:10.6048/j.issn.1001-4330.2022.12.019

新疆农业科学 ›› 2022, Vol. 59 ›› Issue (12): 3030-3046.DOI: 10.6048/j.issn.1001-4330.2022.12.019

• 作物遗传育种·耕作栽培·种质资源 • 上一篇下一篇

豚草和三裂叶豚草拮抗植物的筛选

付开赟¹(), 王钿², 丁新华¹, 贾尊尊¹, 吐尔逊·阿合买提¹, 张国良³, 付卫东³, 文俊⁴, 加马力丁·吾拉扎汗⁴, 王兰², 郭文超¹()

1.新疆农业科学院植物保护研究所/农业部西北荒漠绿洲作物有害生物综合治理重点实验室,乌鲁木齐 830091
2.塔里木大学农学院,新疆阿拉尔 843300
3.中国农业科学院农业环境与可持续发展研究所,北京 100081
4.伊犁州治蝗灭鼠指挥中心,新疆伊宁 835000

收稿日期:2022-02-23 出版日期:2022-12-20 发布日期:2023-01-30
通信作者: 付卫东,文俊,加马力丁·吾拉扎汗,王兰,郭文超
作者简介:付开赟(1987-),男,浙江人,助理研究员,博士,研究方向为外来入侵生物综合防控,(E-mail)fukaiyun000@foxmail.com
基金资助:
新疆维吾尔自治区科技支疆计划“新疆重大恶性入侵杂草应急灭除与持续治理关键技术研发及应用”(2020E0203);新疆农业科学院科技创新重点培育专项“新疆重大新发农林入侵生物监测预警与综合防控”(xjkcpy-002)

Screening of Antagonistic Plants: Ragweed and Giant Ragweed

FU Kaiyun¹(), WANG Dian², DING Xinhua¹, JIA Zunzun¹, Tursun Ahmat¹, ZHANG Guoliang³, FU Weidong³, WEN Jun⁴, Jiamaliding · Wulazahan⁴, WANG La², GUO Wenchao¹()

1. Key Laboratory of Intergraded Management of Harmful Crop Vermin of China Northwestern Oasis, MOARA/Institute of Plant Protection, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China
2. College of Agronomy, Tarim University, Aral Xinjiang 843300, China
3. Institute of Agricultural Environment and Sustainable Development, Chinese Academy of Agricultural Sciences, Beijing 100081, China
4. Command Center of Controlling Locusts and Rodents in Ili Prefecture, Yining Xinjiang 835000, China

Received:2022-02-23 Online:2022-12-20 Published:2023-01-30
Correspondence author: FU Weidong, WEN Jun, Jiamaliding · Wulazahan, WANG La, GUO Wenchao
Supported by:
The S & T Assisting Xinjiang Project of Xinjiang Uygur Autonomous Region "Research and Application of Key Technologies for Emergency Elimination and Sustainable Control of Major Invasive Weeds in Xinjiang"(2020E0203);Key Technology Innovation Incubation Project of Xinjiang Academy of Agricultural Sciences "Monitoring, Early Warning and Comprehensive Prevention and Control of Major New Agricultural and Forestry Invasive Organisms in Xinjiang "(xjkcpy-002)

摘要/Abstract

摘要： 【目的】 研究豚草(Ambrosia artemisiifolia L.)和三裂叶豚草(Ambrosia trifida L.)浸提液对常用替代牧草高羊茅、早熟禾、黑麦草、披碱草,以及对苜蓿、葵花、玉米、小麦、甜菜种子萌发的影响;筛选对豚草和三裂叶豚草具有防控效果的替代植物以及最佳混种方式。【方法】 采用培养皿滤纸法,研究豚草和三裂叶豚草浸提液对供试种子萌发的影响。采用盆栽竞争试验,运用DeWit取代试验研究法,设置牧草和入侵杂草5种混种方式,混种比例分别为1∶1、1∶2、1∶3、2∶1、3∶1,研究黑麦草、披碱草和高羊茅与豚草和三裂叶豚草的竞争效应,分析3种牧草对豚草和三裂叶豚草的替代控制潜力。【结果】 随着豚草和三裂叶豚草的浸提液浓度的增加,4种常用替代牧草种子和新源县5种主要作物种子发芽率,发芽指数和化感效应指数均下降。5种混种密度下,黑麦草、高羊茅与三裂叶豚草混种比例为3∶1时,三裂叶豚草的竞争平衡指数分别为(-0.505 1±0.301 5)、(-0.757 6±0.265 88)均显著小于0(P<0.05);黑麦草、高羊茅与豚草混种比例为1:3时豚草竞争平衡指数分别为(-0.955 8±0.518 08)、(-2.049 7±0.178 55)均显著小于0(P<0.05)。【结论】 豚草和三裂叶豚草浸提液对供试种子萌发具有化感抑制作用;且浸提液浓度越大抑制作用越强,同时叶部化感抑制作用大于根部。三裂叶豚草对四种牧草种子萌发的化感抑制作用大于豚草。黑麦草和高羊茅可以作为豚草和三裂叶豚草的替代植物。黑麦草和高羊茅防治三裂叶豚草时建议播种比例为3∶1;防治豚草时建议播种比例为1∶3。豚草和三裂叶豚草发生密度较大时其化感抑制作用越强,影响牧草萌发生长,应适当加大替代牧草播种量。

关键词: 豚草; 三裂叶豚草; 浸提液; 化感作用; 生物替代

Abstract:

【Objective】 To study the effects of extracts of ragweed and giant ragweed on seed germination of common alternative forages tall fescue, Kentucky bluegrass, ryegrass and Elymus, as well as alfalfa, sunflower, corn, wheat and sugar beet in order to screen the alternative plants with control effect on ragweed and giant ragweed and the best mixed painting method.【Methods】 The effect of ragweed and giant ragweed extract on seed germination was studied by using petri dish filter paper. A pot competition experiment was conducted, and DeWit was used to replace the experimental method to set up five mixed methods of herbage and invasive weeds, whose ratios were 1:1, 1:2, 1:3, 2:1 and 3:1, respectively. The competition effects of Ryegrass, Elymus dahuricus and Festuca Elata with ragweed and giant ragweed were studied to identify the potential of the three forages for the control of ragweed and giant ragweed.【Results】 With the increase of the extract concentration of ragweed and giant ragweed, the germination rate, germination index and allelopathic index of the 4 common substitute forage seeds and the 5 common crop seeds in Xinyuan County decreased on average. Under the 5 mixed densities, when the mixed ratio of ryegrass, tall fescue and giant ragweed was 3:1, the comparison indexes of giant ragweed were (-0.505,1±0.301,5) and (-0.757,6±0.265,88) respectively, which were both significant lower than 0 (P<0.05); When the ratios of ryegrass, tall fescue and ragweed were 1:3, the ragweed competition balance index was (-0.955,8±0.518,08) and (-2.049,7±0.178,55), which were significantly lower than 0 (P<0.05); Under the mixed ratios of Elymus triloba and ragweed and giant ragweed, there was no significant difference in the comparative balance index between ragweed and giant ragweed from 0 (P<0.05).【Conclusion】 The extracts of ragweed and giant ragweed showed allelopathic inhibition on seed germination, and the higher the concentration of the extracts, the stronger the inhibition. At the same time, the allelopathic effect of leaf was greater than that of root. The allelopathic effect of giant ragweed on seed germination of four forage grasses was stronger than that of ragweed. Ryegrass and tall fescue could be used as substitutes for ragweed and giant ragweed. Ryegrass and tall fescue have a recommended ratio of 3:1 for giant ragweed and 1:3 for ragweed. Considering that when the density of ragweed and giant ragweed is higher, the allelopathic inhibitory effect will be stronger, they will affect the germination and growth of forage, so the sowing amount of substitute forage should be increased appropriately.

Key words: ragweed; giant ragweed; extract; allelopathy; biological replacement

中图分类号:

S451

付开赟, 王钿, 丁新华, 贾尊尊, 吐尔逊·阿合买提, 张国良, 付卫东, 文俊, 加马力丁·吾拉扎汗, 王兰, 郭文超. 豚草和三裂叶豚草拮抗植物的筛选[J]. 新疆农业科学, 2022, 59(12): 3030-3046.

FU Kaiyun, WANG Dian, DING Xinhua, JIA Zunzun, Tursun Ahmat, ZHANG Guoliang, FU Weidong, WEN Jun, Jiamaliding · Wulazahan, WANG La, GUO Wenchao. Screening of Antagonistic Plants: Ragweed and Giant Ragweed[J]. Xinjiang Agricultural Sciences, 2022, 59(12): 3030-3046.

图/表 22

参考文献 41

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种子名称 Seed name		供体 Donor	质量浓度 Mass concentration (g/L)	发芽率GR Germination rate (%)	化感效应指数Rl1 Allelopathy index	发芽指数GI Germination Index	化感效应指数Rl2 Allelopathy index
玉米 Zea mays		叶 leaf	0	95.20^a	0	48.46^a	0
			2.5%	84.80^b	-0.12	38.48^b	-0.26
			5.0%	76.00^c	-0.25	31.61^c	-0.53
			7.5%	72.00^c	-0.32	30.03^c	-0.61
			10.0%	71.60^c	-0.33	30.89^c	-0.57
油葵 Helianthus annuus			0	90.00^a	0	37.73^a	0
			2.5%	78.40^b	-0.15	26.09^b	-0.45
			5.0%	66.80^c	-0.35	18.58^c	-1.03
			7.5%	36.80^d	-1.45	12.74^d	-1.96
			10.0%	32.80^d	-1.74	11.63^d	-2.24
甜菜 Beta vulgaris		叶 leaf	0	50.00^a	0	10.82^a	0
			2.5%	25.60^b	-0.95	5.60^b	-0.93
			5.0%	16.00^c	-2.13	4.48^b	-1.42
			7.5%	11.60^cd	-3.31	2.81^d	-2.86
			10.0%	11.20^d	-3.46	3.09^dc	-2.5
小麦 Triticum aestivum			0	94.00^a	0	42.14^a	0
			2.5%	84.40^b	-0.11	34.02^b	-0.24
			5.0%	77.60^c	-0.21	29.58^c	-0.42
			7.5%	77.20^c	-0.22	28.24^c	-0.49
			10.0%	58.80^d	-0.6	21.18^d	-0.99
苜蓿 Medicago Sativa			0	83.60^a	0	38.08^a	0
			2.5%	80.00^a	-0.04	31.33^b	-0.22
			5.0%	45.60^b	-0.83	9.88^c	-2.85
			7.5%	5.60^c	-13.93	1.11^d	-33.2
			10.0%	1.20^d	-68.67	0.19^d	-195.97
黑麦草 Lolium perenne			0	97.60^a	0	45.83^a	0
			2.5%	85.20^b	-0.15	30.94^b	-0.48
			5.0%	58.40^c	-0.67	17.37^c	-1.64
			7.5%	44.40^d	-1.2	10.26^d	-3.47
			10.0%	32.00^e	-2.05	6.03^e	-6.61
早熟禾 Poa pratensis			0	50.00^a	0	18.20^a	0
			2.5%	20.00^b	-1.5	5.29^b	-2.44
			5.0%	2.00^c	-24	0.53^c	-33.67
			7.5%	0.80^c	-61.5	0.10^c	-184.08
			10.0%	0.40^c	-124	0.02^c	-909
披碱草 Elymus dahuricus			0	66.00^a	0	21.33^a	0
			2.5%	52.00^b	-0.27	15.99^b	-0.33
			5.0%	39.20^c	-0.68	10.68^c	-1
			7.5%	24.00^d	-1.75	5.99^d	-2.56
			10.0%	14.40^e	-3.58	3.10^e	-5.89
高羊茅 Festuca elata			0	94.00^a	0	38.18^a	0
			2.5%	85.20^b	-0.1	31.09^b	-0.23
			5.0%	78.40^b	-0.2	23.68^c	-0.61
			7.5%	58.40^c	-0.61	15.48^d	-1.47
			10.0%	32.40^d	-1.9	5.54^e	-5.9
玉米 Zea mays		根 root	0	95.20^a	0	48.46^a	0
			2.5%	88.00^b	-0.08	44.73^b	-0.08
			5.0%	86.80^bc	-0.1	41.22^c	-0.18
			7.5%	84.40^cd	-0.13	40.34^c	-0.2
			10.0%	83.20^d	-0.14	38.27^c	-0.27
油葵 Helianthus annuus			0	90.00^a	0	37.73^a	0
			2.5%	78.00^b	-0.15	32.84^b	-0.15
			5.0%	70.00^c	-0.29	29.68^bc	-0.27
			7.5%	65.60^c	-0.37	26.71^cd	-0.41
			10.0%	65.60^c	-0.37	25.28^d	-0.49
甜菜 Beta vulgaris	根 root		0	50.00^a	0	10.82^a	0
			2.5%	26.4^b	-0.89	7.24^b	-0.49
			5.0%	22.40^b	-1.23	5.49^b	-0.97
			7.5%	24.40^b	-1.05	4.95^b	-1.18
			10.0%	24.00^b	-1.08	6.43^b	-0.68
小麦 Triticum aestivum			0	94.00^a	0	42.14^a	0
			2.5%	88.80^b	-0.06	42.02^a	0
			5.0%	85.60^c	-0.1	36.70^b	-0.15
			7.5%	80.80^d	-0.16	36.84^b	-0.14
			10.0%	81.20^d	-0.16	31.78^b	-0.33
苜蓿 Medicago Sativa			0	83.60^a	0	38.08^a	0
			2.5%	79.60^b	-0.05	32.20^b	-0.18
			5.0%	79.60^b	-0.05	33.45^b	-0.14
			7.5%	79.60^b	-0.05	33.64^bc	-0.13
			10.0%	79.20^b	-0.06	30.03^c	-0.27
黑麦草 Lolium perenne			0	97.60^a	0	45.83^a	0
			2.5%	96.80^ab	-0.01	41.19^b	-0.11
			5.0%	96.00^b	-0.02	35.60^c	-0.29
			7.5%	96.40^ab	-0.01	34.08^c	-0.34
			10.0%	96.40^ab	-0.01	34.33^c	-0.34
早熟禾 Poa pratensis			0	50.00^a	0	18.20^a	0
			2.5%	47.60^ab	-0.05	8.78^b	-1.07
			5.0%	41.20^b	-0.21	7.04^bc	-1.59
			7.5%	38.00^b	-0.32	4.51^cd	-3.04
			10.0%	25.20^c	-0.98	2.89^d	-5.29
披碱草 Elymus dahuricus			0	66.00^a	0	21.33^a	0
			2.5%	59.20^ab	-0.11	17.06^b	-0.25
			5.0%	58.40^bc	-0.13	16.20^b	-0.32
			7.5%	60.00^ab	-0.1	15.24^b	-0.4
			10.0%	51.60^c	-0.28	12.33^c	-0.73
高羊茅 Festuca elata			0	94.00^a	0	38.18^a	0
			2.5%	77.20^b	-0.22	19.80^b	-0.93
			5.0%	75.20^b	-0.25	18.88^b	-1.02
			7.5%	74.80^b	-0.26	17.10^c	-1.23
			10.0%	75.20^b	-0.25	15.14^d	-1.52

种子名称 Seed name		供体 Donor	质量浓度 Mass concentration (g/L)	发芽率GR Germination rate (%)	化感效应指数Rl1 Allelopathy index	发芽指数GI Germination Index	化感效应指数Rl2 Allelopathy index
玉米 Zea mays		叶 leaf	0	95.20^a	0	48.46^a	0
			2.5%	84.80^b	-0.12	38.48^b	-0.26
			5.0%	76.00^c	-0.25	31.61^c	-0.53
			7.5%	72.00^c	-0.32	30.03^c	-0.61
			10.0%	71.60^c	-0.33	30.89^c	-0.57
油葵 Helianthus annuus			0	90.00^a	0	37.73^a	0
			2.5%	78.40^b	-0.15	26.09^b	-0.45
			5.0%	66.80^c	-0.35	18.58^c	-1.03
			7.5%	36.80^d	-1.45	12.74^d	-1.96
			10.0%	32.80^d	-1.74	11.63^d	-2.24
甜菜 Beta vulgaris		叶 leaf	0	50.00^a	0	10.82^a	0
			2.5%	25.60^b	-0.95	5.60^b	-0.93
			5.0%	16.00^c	-2.13	4.48^b	-1.42
			7.5%	11.60^cd	-3.31	2.81^d	-2.86
			10.0%	11.20^d	-3.46	3.09^dc	-2.5
小麦 Triticum aestivum			0	94.00^a	0	42.14^a	0
			2.5%	84.40^b	-0.11	34.02^b	-0.24
			5.0%	77.60^c	-0.21	29.58^c	-0.42
			7.5%	77.20^c	-0.22	28.24^c	-0.49
			10.0%	58.80^d	-0.6	21.18^d	-0.99
苜蓿 Medicago Sativa			0	83.60^a	0	38.08^a	0
			2.5%	80.00^a	-0.04	31.33^b	-0.22
			5.0%	45.60^b	-0.83	9.88^c	-2.85
			7.5%	5.60^c	-13.93	1.11^d	-33.2
			10.0%	1.20^d	-68.67	0.19^d	-195.97
黑麦草 Lolium perenne			0	97.60^a	0	45.83^a	0
			2.5%	85.20^b	-0.15	30.94^b	-0.48
			5.0%	58.40^c	-0.67	17.37^c	-1.64
			7.5%	44.40^d	-1.2	10.26^d	-3.47
			10.0%	32.00^e	-2.05	6.03^e	-6.61
早熟禾 Poa pratensis			0	50.00^a	0	18.20^a	0
			2.5%	20.00^b	-1.5	5.29^b	-2.44
			5.0%	2.00^c	-24	0.53^c	-33.67
			7.5%	0.80^c	-61.5	0.10^c	-184.08
			10.0%	0.40^c	-124	0.02^c	-909
披碱草 Elymus dahuricus			0	66.00^a	0	21.33^a	0
			2.5%	52.00^b	-0.27	15.99^b	-0.33
			5.0%	39.20^c	-0.68	10.68^c	-1
			7.5%	24.00^d	-1.75	5.99^d	-2.56
			10.0%	14.40^e	-3.58	3.10^e	-5.89
高羊茅 Festuca elata			0	94.00^a	0	38.18^a	0
			2.5%	85.20^b	-0.1	31.09^b	-0.23
			5.0%	78.40^b	-0.2	23.68^c	-0.61
			7.5%	58.40^c	-0.61	15.48^d	-1.47
			10.0%	32.40^d	-1.9	5.54^e	-5.9
玉米 Zea mays		根 root	0	95.20^a	0	48.46^a	0
			2.5%	88.00^b	-0.08	44.73^b	-0.08
			5.0%	86.80^bc	-0.1	41.22^c	-0.18
			7.5%	84.40^cd	-0.13	40.34^c	-0.2
			10.0%	83.20^d	-0.14	38.27^c	-0.27
油葵 Helianthus annuus			0	90.00^a	0	37.73^a	0
			2.5%	78.00^b	-0.15	32.84^b	-0.15
			5.0%	70.00^c	-0.29	29.68^bc	-0.27
			7.5%	65.60^c	-0.37	26.71^cd	-0.41
			10.0%	65.60^c	-0.37	25.28^d	-0.49
甜菜 Beta vulgaris	根 root		0	50.00^a	0	10.82^a	0
			2.5%	26.4^b	-0.89	7.24^b	-0.49
			5.0%	22.40^b	-1.23	5.49^b	-0.97
			7.5%	24.40^b	-1.05	4.95^b	-1.18
			10.0%	24.00^b	-1.08	6.43^b	-0.68
小麦 Triticum aestivum			0	94.00^a	0	42.14^a	0
			2.5%	88.80^b	-0.06	42.02^a	0
			5.0%	85.60^c	-0.1	36.70^b	-0.15
			7.5%	80.80^d	-0.16	36.84^b	-0.14
			10.0%	81.20^d	-0.16	31.78^b	-0.33
苜蓿 Medicago Sativa			0	83.60^a	0	38.08^a	0
			2.5%	79.60^b	-0.05	32.20^b	-0.18
			5.0%	79.60^b	-0.05	33.45^b	-0.14
			7.5%	79.60^b	-0.05	33.64^bc	-0.13
			10.0%	79.20^b	-0.06	30.03^c	-0.27
黑麦草 Lolium perenne			0	97.60^a	0	45.83^a	0
			2.5%	96.80^ab	-0.01	41.19^b	-0.11
			5.0%	96.00^b	-0.02	35.60^c	-0.29
			7.5%	96.40^ab	-0.01	34.08^c	-0.34
			10.0%	96.40^ab	-0.01	34.33^c	-0.34
早熟禾 Poa pratensis			0	50.00^a	0	18.20^a	0
			2.5%	47.60^ab	-0.05	8.78^b	-1.07
			5.0%	41.20^b	-0.21	7.04^bc	-1.59
			7.5%	38.00^b	-0.32	4.51^cd	-3.04
			10.0%	25.20^c	-0.98	2.89^d	-5.29
披碱草 Elymus dahuricus			0	66.00^a	0	21.33^a	0
			2.5%	59.20^ab	-0.11	17.06^b	-0.25
			5.0%	58.40^bc	-0.13	16.20^b	-0.32
			7.5%	60.00^ab	-0.1	15.24^b	-0.4
			10.0%	51.60^c	-0.28	12.33^c	-0.73
高羊茅 Festuca elata			0	94.00^a	0	38.18^a	0
			2.5%	77.20^b	-0.22	19.80^b	-0.93
			5.0%	75.20^b	-0.25	18.88^b	-1.02
			7.5%	74.80^b	-0.26	17.10^c	-1.23
			10.0%	75.20^b	-0.25	15.14^d	-1.52

种子名称 Seed name	供体 Donor	质量浓度 Mass concentration (g/L)	发芽率GR Germination rate (%)	化感效应指数Rl1 Allelopathy index	发芽指数GI Germination Index	化感效应指数Rl2 Allelopathy index
黑麦草 Lolium perenne	叶 leaf	0	98.50^a	0.00	48.17^a	0.00
		2.5%	96.50^a	-0.02	42.74^b	-0.13
		5.0%	95.50^a	-0.03	40.79^b	-0.18
		7.5%	94.50^a	-0.04	39.23^b	-0.23
		10.0%	94.00^a	-0.05	31.71^c	-0.52
早熟禾 Poa pratensis		0	77.00^a	0.00	11.71^a	0.00
		2.5%	74.50^a	-0.03	10.90^a	-0.07
		5.0%	70.00^ab	-0.10	10.08^a	-0.16
		7.5%	67.50^ab	-0.14	9.96^a	-0.18
		10.0%	57.00^b	-0.35	4.70^b	-1.49
披碱草 Elymus dahuricus		0	71.00^a	0.00	29.14^a	0.00
		2.5%	66.00^a	-0.08	28.00^a	-0.04
		5.0%	63.00^a	-0.13	27.25^a	-0.07
		7.5%	61.50^a	-0.15	18.90^b	-0.54
		10.0%	60.50^a	-0.17	16.52^b	-0.76
高羊茅 Festuca elata		0	88.50^a	0.00	39.71^a	0.00
		2.5%	87.00^a	-0.02	32.11^b	-0.24
		5.0%	83.00^ab	-0.07	29.61^bc	-0.34
		7.5%	77.50^bc	-0.14	26.05^cd	-0.52
		10.0%	74.00^c	-0.20	22.69^d	-0.75
黑麦草 Lolium perenne	根 root	0	98.50^a	0.00	48.15^a	0.00
		2.5%	98.00^a	-0.01	46.05^ab	-0.05
		5.0%	97.50^a	-0.01	41.00^b	-0.17
		7.5%	96.50^a	-0.02	35.74^c	-0.35
		10.0%	91.00^b	-0.08	30.21^d	-0.59
早熟禾 Poa pratensis		0	77.00^a	0.00	11.71^a	0.00
		2.5%	71.50^a	-0.08	11.06^a	-0.06
		5.0%	68.50^a	-0.12	10.91^a	-0.07
		7.5%	67.50^a	-0.14	10.56^a	-0.11
		10.0%	45.00^b	-0.71	8.27^b	-0.42
披碱草 Elymus dahuricus		0	71.00^a	0.00	29.14^a	0.00
		2.5%	66.00^a	-0.08	27.37^ab	-0.06
		5.0%	62.50^ab	-0.14	27.15^ab	-0.07
		7.5%	62.00^ab	-0.15	23.38^b	-0.25
		10.0%	54.00^b	-0.31	23.13^b	-0.26
高羊茅 Festuca elata		0	88.50^a	0.00	39.71^a	0.00
		2.5%	86.50^a	-0.02	33.64^b	-0.18
		5.0%	83.50^a	-0.06	27.86^c	-0.43
		7.5%	81.50^a	-0.09	25.24^c	-0.57
		10.0%	81.00^a	-0.09	24.20^c	-0.64

种子名称 Seed name	供体 Donor	质量浓度 Mass concentration (g/L)	发芽率GR Germination rate (%)	化感效应指数Rl1 Allelopathy index	发芽指数GI Germination Index	化感效应指数Rl2 Allelopathy index
黑麦草 Lolium perenne	叶 leaf	0	98.50^a	0.00	48.17^a	0.00
		2.5%	96.50^a	-0.02	42.74^b	-0.13
		5.0%	95.50^a	-0.03	40.79^b	-0.18
		7.5%	94.50^a	-0.04	39.23^b	-0.23
		10.0%	94.00^a	-0.05	31.71^c	-0.52
早熟禾 Poa pratensis		0	77.00^a	0.00	11.71^a	0.00
		2.5%	74.50^a	-0.03	10.90^a	-0.07
		5.0%	70.00^ab	-0.10	10.08^a	-0.16
		7.5%	67.50^ab	-0.14	9.96^a	-0.18
		10.0%	57.00^b	-0.35	4.70^b	-1.49
披碱草 Elymus dahuricus		0	71.00^a	0.00	29.14^a	0.00
		2.5%	66.00^a	-0.08	28.00^a	-0.04
		5.0%	63.00^a	-0.13	27.25^a	-0.07
		7.5%	61.50^a	-0.15	18.90^b	-0.54
		10.0%	60.50^a	-0.17	16.52^b	-0.76
高羊茅 Festuca elata		0	88.50^a	0.00	39.71^a	0.00
		2.5%	87.00^a	-0.02	32.11^b	-0.24
		5.0%	83.00^ab	-0.07	29.61^bc	-0.34
		7.5%	77.50^bc	-0.14	26.05^cd	-0.52
		10.0%	74.00^c	-0.20	22.69^d	-0.75
黑麦草 Lolium perenne	根 root	0	98.50^a	0.00	48.15^a	0.00
		2.5%	98.00^a	-0.01	46.05^ab	-0.05
		5.0%	97.50^a	-0.01	41.00^b	-0.17
		7.5%	96.50^a	-0.02	35.74^c	-0.35
		10.0%	91.00^b	-0.08	30.21^d	-0.59
早熟禾 Poa pratensis		0	77.00^a	0.00	11.71^a	0.00
		2.5%	71.50^a	-0.08	11.06^a	-0.06
		5.0%	68.50^a	-0.12	10.91^a	-0.07
		7.5%	67.50^a	-0.14	10.56^a	-0.11
		10.0%	45.00^b	-0.71	8.27^b	-0.42
披碱草 Elymus dahuricus		0	71.00^a	0.00	29.14^a	0.00
		2.5%	66.00^a	-0.08	27.37^ab	-0.06
		5.0%	62.50^ab	-0.14	27.15^ab	-0.07
		7.5%	62.00^ab	-0.15	23.38^b	-0.25
		10.0%	54.00^b	-0.31	23.13^b	-0.26
高羊茅 Festuca elata		0	88.50^a	0.00	39.71^a	0.00
		2.5%	86.50^a	-0.02	33.64^b	-0.18
		5.0%	83.50^a	-0.06	27.86^c	-0.43
		7.5%	81.50^a	-0.09	25.24^c	-0.57
		10.0%	81.00^a	-0.09	24.20^c	-0.64

竞争组合 Competitive Combination	混种比例 Hybrid alignment	牧草相对产量RYb Relative yield of forage grass	三裂叶豚草相对产量Rya Relative yield of giant ragweed	三裂叶豚草的竞争平衡指数Cba Giant Ragweed's Competitive Balance Index
高羊茅+三裂叶豚草 Festuca elata+ A. trifida	1∶1	1.027 7±0.256 75^a	0.979 8±0.070 27^a	0.010 0±0.208 74^c
	2∶1	0.681 4±0.035 78^ab*	0.830 4±0.04091^a*	0.198 2±0.102 11^bc
	3∶1	0.963 8±0.036 52^a	0.478 4±0.121 41^a*	-0.757 6±0.265 88^d**
	1∶2	0.428 6±0.083 94^b*	1.052 4±0.061 8^a	0.932±0.141 04^a**
	1∶3	0.428 6±0.083 94^b*	1.095 6±0.451 49^a	0.821 5±0.204 89^ab**
黑麦草+三裂叶豚草 Lolium perenne+ A. trifida	1∶1	0.484 7±0.192 27^a*	0.605 8±0.041 26^a*	0.412 8±0.518 4^a**
	2∶1	0.528 2±0.047 13^a*	0.550 9±0.087 72^a*	0.021 7±0.241 88^a
	3∶1	0.672 6±0.046 06^a*	0.519 5±0.106 76^a*	-0.505 1±0.301 51^a**
	1∶2	0.423 9±0.053 61^a*	0.551 4±0.200 97^a*	0.052 4±0.093^a
	1∶3	0.538 7±0.107 54^a*	0.597 2±0.024 96^a*	0.148 5±0.266 97^a
披碱草+三裂叶豚草 Elymus dahuricus+ A. trifida	1∶1	0.934 7±0.065 53^a	0.738 2±0.038 8^a*	-0.233 7±0.049 57^a
	2∶1	0.731 5±0.165 62^a*	1.018 9±0.298 47^a	0.299 1±0.072 52^a
	3∶1	0.847 0±0.052 84^a*	0.836 1±0.243 87^a	-0.093 8±0.230 17^a
	1∶2	0.731 1±0.020 95^a*	0.557 9±0.019 12^a*	-0.270 6±0.046 54^a
	1∶3	0.612±0.155 68^a*	0.796 9±0.129 67^a*	0.309 3±0.406 63

豚草和三裂叶豚草拮抗植物的筛选

Screening of Antagonistic Plants: Ragweed and Giant Ragweed

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Metrics

竞争组合 Competitive Combination	混种比例 Hybrid alignment	牧草相对产量RYb Relative yield of forage grass	豚草相对产量Rya Relative yield of ragweed	豚草的竞争平衡指数Cba Competitive Balance Index of ragweed
高羊茅+豚草 Festuca elata+ A. artemisiifolia	1∶1	0.552 3±0.087 6^a*	1.077 0±0.172 47^a	0.668 2±0.306 48^a**
	2∶1	2.045 4±0.372 0^a*	0.690 2±0.313 99^a	-1.253 4±0.650 83^b**
	3∶1	2.525 9±1.517 1^a	0.684 2±0.242 53^a	-1.025 7±0.305 52^b**
	1∶2	0.621 6±0.112 2^a*	1.042 6±0.270 01^a	0.492 4±0.296 22^a
	1∶3	2.919 4±0.819 8^a	0.382 9±0.135 72^a*	-2.049 7±0.178 55^b**
黑麦草+豚草 Lolium perenne+ A. artemisiifolia	1∶1	0.475 6±0.041 52^b*	1.081 3±0.285 22^a	0.764 8±0.228 73^a**
	2∶1	1.582 3±0.236 23^a*	0.699 7±0.204 14^a*	-0.8917±0.187 72^b**
	3∶1	0.977 5±0.105 93^b	0.422 9±0.157 33^a*	-0.7816±0.333 90^b**
	1∶2	0.774 7±0.246 14^b	0.526 2±0.047 8^a*	-0.2740±0.372 38^ab
	1∶3	0.913 8±0.134 71^b	0.421 4±0.195 15^a*	-0.9558±0.518 08^b**
披碱草+豚草 Elymus dahuricus+ A. artemisiifolia	1∶1	0.613 3±0.156 77^a*	0.546 7±0.157 09^a*	-0.120 9±0.386 8^a
	2∶1	0.853 3±0.144 03^a*	0.846 7±0.108 06^a*	0.006 9±0.202 11^a
	3∶1	0.840 0±0.112 69^a*	0.570 0±0.060 28^a*	-0.310 4±0.067 61^a
	1∶2	0.726 7±0.178 36^a*	0.843 3±0.214 04^a	0.140 2±0.535 51^a
	1∶3	0.846 7±0.149 48^a*	0.653 3±0.213 65^a*	-0.328 0±0.135 39^a

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