不同Ca2+浓度对蒲公英和橡胶草种子萌发及根系生长的影响

doi:10.6048/j.issn.1001-4330.2022.05.011

新疆农业科学 ›› 2022, Vol. 59 ›› Issue (5): 1128-1134.DOI: 10.6048/j.issn.1001-4330.2022.05.011

不同Ca²⁺浓度对蒲公英和橡胶草种子萌发及根系生长的影响

严青青¹(), 邢涛², 王莉¹(), 张龑¹(), 高强¹, 徐麟¹, 王永刚¹

1.新疆农业科学院农作物品种资源研究所,乌鲁木齐 830091
2.山东玲珑轮胎股份有限公司,山东招远 265400

收稿日期:2021-11-30 出版日期:2022-05-20 发布日期:2022-06-09
通信作者: 王莉,张龑
作者简介:严青青(1993-),女,四川渠县人,助理研究员,硕士研究生,研究方向为作物栽培生理生态,(E-mail) 1359055572@qq.com
基金资助:
国家重点研发计划“黄河三角洲耐盐碱作物提质增效技术集成研究与示范”(2019YFD1002703);北京玲珑蒲公英科技发展有限公司项目“橡胶草栽培装备技术模式研究与原料基地建设”;国家重点研发计划“绿色、水基、高效、低成本蒲公英橡胶制备关键技术和性能研究”(2017YFB0306901);新疆农业科学院自主培育项目“新疆农作物种质资源优异特性挖掘与利用”(nkyzzkj-008)

Effects of Different Ca²⁺ Concentrations on Seed Germination and Root Growth of Taraxacum mongolicum and Taraxacumkok-saghyz

YAN Qingqing¹(), XING Tao², WANG Li¹(), ZHANG Yan¹(), GAO Qiang¹, XU Lin¹, WANG Yonggang¹

1. Institute of Crop Germplasm Resources, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China
2. Linglong Shandong Dandelion Technology& Development Co., Ltd, Zhaoyuan Shandong 265400, China

Received:2021-11-30 Online:2022-05-20 Published:2022-06-09
Correspondence author: WANG Li, ZHANG Yan
Supported by:
National Key R & D Program in China - Integrated Research and Demonstration on Improving Quality and Efficiency of Saline Alkali Tolerant crops in the Yellow River Delta(2019YFD1002703);Project of Linglong Beijing Dandelion Technology & Development Co., Ltd. (Study on Cultivation Equipment and Technical Mode of Rubber Grass and Construction of Raw Material Base);National Key R & D Program in China-Study on Key Technologies and Properties of Green, Water-Based, Efficient and Low-Cost Dandelion Rubber(2017YFB0306901);Independent Cultivation Project of Xinjiang Academy of Agricultural Sciences - Mining and Utilization of Excellent Characteristics of Crop Germplasm Resources in Xinjiang(nkyzzkj-008)

摘要/Abstract

摘要：

【目的】研究黄蒲蒲公英和科根橡胶草2个品系种子萌发和根系生长对不同Ca²⁺浓度的响应,分析其种子及根部对Ca²⁺的响应特征。【方法】以新疆当地黄蒲蒲公英、科根橡胶草为材料,2020年设置室内试验。设0(CK)、0.04、0.08、0.12、0.16 mol/L 5个Ca²⁺浓度处理。【结果】与CK相比,0.04 mol/L Ca²⁺处理未显著影响黄蒲蒲公英和科根橡胶草的种子发芽率、发芽势、发芽指数,其余Ca²⁺处理下的种子萌发参数均随着浓度增加呈降低趋势。根系参数与种子萌发参数表现一致,根系总长度、表面积、体积均随着Ca²⁺浓度的增加逐渐降低,科根橡胶草的细根长度(直径(d)<0.5 mm)在0.04、0.08 mol/L Ca²⁺浓度处理下大于黄蒲蒲公英。【结论】黄蒲蒲公英和科根橡胶草在不同的Ca²⁺浓度处理下的根系生长适应性不同。尤其在0.04、0.08 mol/L Ca²⁺浓度处理下科根橡胶草细根长度要大于黄蒲蒲公英,发芽率也要大于黄蒲蒲公英。

关键词: 黄蒲蒲公英; 科根橡胶草; Ca²⁺; 根系生长

Abstract:

【Objective】 To study the response of seed germination and root growth to different concentrations of Ca²⁺ and elucidate the response characteristics of seed and root to Ca²⁺.【Method】 In this study, we used theTaraxacum mongolicum strain Huangpu and Taraxacumkok-saghyz strain Kegen in Xinjiang as materials, In 2020, the laboratory experiment was carried out Institute of Crop Germplasm Resources, Xinjiang Academy of Agricultural Sciences. 【Result】 Compared with CK, 0.04 mol/L Ca²⁺ treatment had no significant effect on the germination rate, germination potential and germination index of Huangpu and Kegen. The germination parameters of other Ca²⁺ treatments decreased with the increase of concentration. The total length, surface area and volume of roots decreased gradually with the increase of Ca²⁺ concentration. The fine root length (diameter (d) < 0.5 mm) of Kegen was larger than that of Huangpu under 0.04 and 0.08 mol/L Ca²⁺ concentrations. 【Conclusion】 The root growth adaptability of Huangpu and Kegen is different under different Ca²⁺ concentrations. Especially at the concentration of 0.04 and 0.08 mol/L Ca²⁺, the fine root length of Kegen is longer than that of Huangpu, and the germination rate of Kegen is higher than that of Huangpu.

Key words: Taraxacum mongolicum; Taraxacumkok-saghyz; Ca²⁺; root growth

中图分类号:

S812

严青青, 邢涛, 王莉, 张龑, 高强, 徐麟, 王永刚. 不同Ca²⁺浓度对蒲公英和橡胶草种子萌发及根系生长的影响[J]. 新疆农业科学, 2022, 59(5): 1128-1134.

YAN Qingqing, XING Tao, WANG Li, ZHANG Yan, GAO Qiang, XU Lin, WANG Yonggang. Effects of Different Ca²⁺ Concentrations on Seed Germination and Root Growth of Taraxacum mongolicum and Taraxacumkok-saghyz[J]. Xinjiang Agricultural Sciences, 2022, 59(5): 1128-1134.

图/表 6

图1 不同Ca2+浓度下蒲公英和橡胶草发芽率变化

Fig.1 Effect of different Ca2+ on germination rate of Taraxacum mongolicum and Taraxacum kok-saghyz

图2 不同Ca2+浓度下蒲公英和橡胶草发芽势变化

Fig.2 Effect of different Ca2+ concentration on germination potential of Taraxacum mongolicum and Taraxacum kok-saghyz

图3 不同Ca2+浓度下蒲公英和橡胶草发芽指数变化

Fig.3 Effect of different Ca2+ on germination index of Taraxacum mongolicum and Taraxacum kok-saghyz

表1 不同Ca2+浓度下蒲公英和橡胶草不同径级根系长度(L)变化

Table 1 Effects of different Ca2+ concentrations on root length (L) of different diameter classes of Taraxacum mongolicum and Taraxacum kok-saghyz

品系 Strain	Ca²⁺浓度 Ca²⁺ Concentration (mol/L)	根系总长度 Total root length-L (cm)	直径 Diameter-d≤0.5 mm 根系长度L(cm)	0.5<直径 Diameter-d≤2.0 mm 根系长度L(cm)
科根Kegen	CK	328.86^b	268.94^b	59.69^a
	0.04	174.22^c	155.99^c	16.81^b
	0.08	161.61^c	147.7 $3 c d$	13.22^b
	0.12	125.21^d	114.9 $4 d e$	10.26^b
	0.16	108.41^d	92.84^e	14.84^b
黄蒲Huangpu	CK	393.72^a	365.10^a	28.33^b
	0.04	172.57^c	160.70^c	11.87^b
	0.08	126.74^d	110.8 $7 d e$	15.57^b
	0.12	55.51^e	48.12^f	7.37^b
	0.16	33.05^e	31.09^f	1.96^b

表1 不同Ca2+浓度下蒲公英和橡胶草不同径级根系长度(L)变化

Table 1 Effects of different Ca2+ concentrations on root length (L) of different diameter classes of Taraxacum mongolicum and Taraxacum kok-saghyz

品系 Strain	Ca²⁺浓度 Ca²⁺ Concentration (mol/L)	根系总长度 Total root length-L (cm)	直径 Diameter-d≤0.5 mm 根系长度L(cm)	0.5<直径 Diameter-d≤2.0 mm 根系长度L(cm)
科根Kegen	CK	328.86^b	268.94^b	59.69^a
	0.04	174.22^c	155.99^c	16.81^b
	0.08	161.61^c	147.7 $3 c d$	13.22^b
	0.12	125.21^d	114.9 $4 d e$	10.26^b
	0.16	108.41^d	92.84^e	14.84^b
黄蒲Huangpu	CK	393.72^a	365.10^a	28.33^b
	0.04	172.57^c	160.70^c	11.87^b
	0.08	126.74^d	110.8 $7 d e$	15.57^b
	0.12	55.51^e	48.12^f	7.37^b
	0.16	33.05^e	31.09^f	1.96^b

表2 不同Ca2+浓度下蒲公英和橡胶草不同径级根系表面积(SA)变化

Table 2 Effects of different Ca2+ concentrations on root surface area (SA) of different diameter classes of Taraxacum mongolicum and Taraxacum kok-saghyz

品系 Strain	Ca²⁺浓度 Ca²⁺ Concentration (mol/L)	根系总表面积(cm²/株) Total root surface area-SA ( cm²/plant)	直径Diameter-d ≤0.5 mm 根系表面积SA( cm²)	0.5<直径 Diameter-d≤2.0 mm 根系表面积SA( cm²)
科根Kegen	CK	23.12^b	17.12^b	5.88^a
	0.04	17.06^c	12.76^c	3.7 $2 a b c$
	0.08	12.16^d	9.68^d	2.0 $6 b c d$
	0.12	9.58^e	7.6 $6 d e$	1.9 $3 b c d$
	0.16	8.64^e	6.39^e	1.5 $5 c d$
黄蒲Huangpu	CK	26.85^a	22.42^a	4.2 $5 a b$
	0.04	15.23^c	13.37^c	1.8 $6 b c d$
	0.08	7.3 $8 e f$	5.7 $4 e f$	1.4 $3 c d$
	0.12	5.40^f	3.6 $3 f g$	1.7 $2 b c d$
	0.16	2.37^g	2.06^g	0.31^d

表2 不同Ca2+浓度下蒲公英和橡胶草不同径级根系表面积(SA)变化

Table 2 Effects of different Ca2+ concentrations on root surface area (SA) of different diameter classes of Taraxacum mongolicum and Taraxacum kok-saghyz

品系 Strain	Ca²⁺浓度 Ca²⁺ Concentration (mol/L)	根系总表面积(cm²/株) Total root surface area-SA ( cm²/plant)	直径Diameter-d ≤0.5 mm 根系表面积SA( cm²)	0.5<直径 Diameter-d≤2.0 mm 根系表面积SA( cm²)
科根Kegen	CK	23.12^b	17.12^b	5.88^a
	0.04	17.06^c	12.76^c	3.7 $2 a b c$
	0.08	12.16^d	9.68^d	2.0 $6 b c d$
	0.12	9.58^e	7.6 $6 d e$	1.9 $3 b c d$
	0.16	8.64^e	6.39^e	1.5 $5 c d$
黄蒲Huangpu	CK	26.85^a	22.42^a	4.2 $5 a b$
	0.04	15.23^c	13.37^c	1.8 $6 b c d$
	0.08	7.3 $8 e f$	5.7 $4 e f$	1.4 $3 c d$
	0.12	5.40^f	3.6 $3 f g$	1.7 $2 b c d$
	0.16	2.37^g	2.06^g	0.31^d

表3 不同Ca2+浓度下蒲公英和橡胶草不同径级根系体积(V)变化

Table 3 Effects of different Ca2+ concentrations on root volume (V) of different diameter classes of Taraxacum mongolicum and Taraxacum kok-saghyz

品系 Strain	Ca²⁺浓度 Ca²⁺ Concentration (mol/L)	根系总体积(cm³/株) Total root volume-V (cm³/plant)	直径Diameter- d≤0.5 mm 根系体积V(cm³)	0.5<直径Diameter- d≤2.0 mm 根系体积V(cm³)
科根 Kegen	CK	0.25^b	0.1 $3 a b$	0.12^a
	0.04	0.20^c	0.1 $0 c d$	0.0 $5 b c$
	0.08	0.1 $5 c d e$	0.0 $7 d e$	0.06^b
	0.12	0.10^e	0.05^e	0.0 $5 b c$
	0.16	0.10^e	0.0 $6 d e$	0.0 $3 b c$
黄蒲Huangpu	CK	0.29^b	0.16^a	0.12^a
	0.04	0.36^a	0.16^a	0.11^a
	0.08	0.1 $8 c d$	0.1 $1 b c$	0.0 $5 b c$
	0.12	0.1 $2 d e$	0.0 $8 c d e$	0.0 $4 b c$
	0.16	0.01^f	0.01^f	0.00^c

表3 不同Ca2+浓度下蒲公英和橡胶草不同径级根系体积(V)变化

Table 3 Effects of different Ca2+ concentrations on root volume (V) of different diameter classes of Taraxacum mongolicum and Taraxacum kok-saghyz

品系 Strain	Ca²⁺浓度 Ca²⁺ Concentration (mol/L)	根系总体积(cm³/株) Total root volume-V (cm³/plant)	直径Diameter- d≤0.5 mm 根系体积V(cm³)	0.5<直径Diameter- d≤2.0 mm 根系体积V(cm³)
科根 Kegen	CK	0.25^b	0.1 $3 a b$	0.12^a
	0.04	0.20^c	0.1 $0 c d$	0.0 $5 b c$
	0.08	0.1 $5 c d e$	0.0 $7 d e$	0.06^b
	0.12	0.10^e	0.05^e	0.0 $5 b c$
	0.16	0.10^e	0.0 $6 d e$	0.0 $3 b c$
黄蒲Huangpu	CK	0.29^b	0.16^a	0.12^a
	0.04	0.36^a	0.16^a	0.11^a
	0.08	0.1 $8 c d$	0.1 $1 b c$	0.0 $5 b c$
	0.12	0.1 $2 d e$	0.0 $8 c d e$	0.0 $4 b c$
	0.16	0.01^f	0.01^f	0.00^c

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不同Ca²⁺浓度对蒲公英和橡胶草种子萌发及根系生长的影响

Effects of Different Ca²⁺ Concentrations on Seed Germination and Root Growth of Taraxacum mongolicum and Taraxacumkok-saghyz

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