草业学报 ›› 2023, Vol. 32 ›› Issue (1): 99-111.DOI: 10.11686/cyxb2022027
收稿日期:
2022-01-12
修回日期:
2022-02-24
出版日期:
2023-01-20
发布日期:
2022-11-07
通讯作者:
陈爱萍
作者简介:
E-mail: xjauchenaiping@sina.com基金资助:
Rui-qiang LI(), Yu-xiang WANG, Yu-lan SUN, Lei ZHANG, Ai-ping CHEN()
Received:
2022-01-12
Revised:
2022-02-24
Online:
2023-01-20
Published:
2022-11-07
Contact:
Ai-ping CHEN
摘要:
为了明确不同无芒雀麦苗期耐盐能力的强弱,本研究选择5份不同株型的无芒雀麦作为供试材料。根据新疆土壤盐碱成分设置中性盐(M盐):NaCl∶Na2SO4∶Na2CO3=1∶4∶0和碱性盐(A盐):NaCl∶Na2SO4∶Na2CO3=1∶1∶8两种处理,于三叶期每盆一次性浇灌2 L电导率(EC)为20 ms·cm-1的盐处理液,CK浇灌等量自来水。处理30 d后测定生长指标、叶绿素荧光特性参数、丙二醛(MDA)和渗透调节物质含量,并通过相关性分析、主成分分析、隶属函数分析对13个指标进行分析评价。结果表明:除Fv/Fm和Fv/Fo外,盐胁迫显著影响其余11个指标,且5份材料间差异显著(P<0.05);5份无芒雀麦的株高、茎粗、分蘖数、地上生物量、根冠比、MDA和脯氨酸含量在不同盐胁迫下表现出不同的适应变化;L2和L4的株高均表现出A盐处理显著高于M盐处理;A盐处理显著增加L3的地上生物量,而M盐处理与CK相比无显著差异;L1、L2和L5的MDA含量在A盐处理下的增幅明显大于M盐处理,A盐处理下L2的MDA含量明显高于其他材料;盐胁迫严重抑制了无芒雀麦的根系发育以及可溶性糖含量的积累,5份材料的地下生物量和可溶性糖含量较CK相比均出现不同程度的降低。主成分分析结果表明,渗透调节物质和生长指标可作为评价无芒雀麦耐盐能力强弱的综合指标。由耐盐评价D值得出L4耐盐能力较强,L5耐盐能力较弱。
李瑞强, 王玉祥, 孙玉兰, 张磊, 陈爱萍. 盐胁迫对5份无芒雀麦苗期生长和生理生化的影响及综合性评价[J]. 草业学报, 2023, 32(1): 99-111.
Rui-qiang LI, Yu-xiang WANG, Yu-lan SUN, Lei ZHANG, Ai-ping CHEN. Effects of salt stress on the growth, physiology, and biochemistry of five Bromus inermis varieties[J]. Acta Prataculturae Sinica, 2023, 32(1): 99-111.
指标 Index | 材料Materials | 盐处理Salt treatment | 材料×处理Materials×salt treatment | ||||||
---|---|---|---|---|---|---|---|---|---|
自由度df | 均方 Mean square | F | 自由度 df | 均方 Mean square | F | 自由度 df | 均方 Mean square | F | |
株高Plant height | 4 | 777.57 | 192.95*** | 2 | 108.55 | 26.94*** | 8 | 127.83 | 31.72*** |
分蘖数Number of tillers | 4 | 3.04 | 44.23*** | 2 | 1.35 | 19.62*** | 8 | 0.61 | 8.81*** |
茎粗Stem diameter | 4 | 0.70 | 24.08*** | 2 | 0.33 | 11.23*** | 8 | 0.08 | 2.90*** |
地上生物量Aboveground biomass | 4 | 27.08 | 380.11*** | 2 | 5.50 | 77.26*** | 8 | 2.35 | 32.99*** |
地下生物量Underground biomass | 4 | 17.64 | 161.41*** | 2 | 23.55 | 215.44*** | 8 | 1.35 | 12.34*** |
根冠比Root-crown ratio | 4 | 0.18 | 422.46*** | 2 | 0.81 | 1914.21*** | 8 | 0.09 | 211.73*** |
丙二醛MDA | 4 | 474739.30 | 536.83*** | 2 | 407127.30 | 460.38*** | 8 | 66493.20 | 75.19*** |
脯氨酸Pro | 4 | 927.37 | 78.77*** | 2 | 2111.03 | 179.31*** | 8 | 839.68 | 71.32*** |
可溶性糖Soluble sugar | 4 | 89.81 | 50.43*** | 2 | 161.78 | 90.84*** | 8 | 23.82 | 13.38*** |
初始荧光Fo | 4 | 1813.89 | 4.88*** | 2 | 1490.82 | 4.01 | 8 | 926.55 | 2.49* |
最大荧光Fm | 4 | 82546.16 | 50.26** | 2 | 25138.70 | 15.31*** | 8 | 16645.65 | 10.14*** |
最大光化学效率Fv/Fm | 4 | 0.00 | 0.08 | 2 | 0.00 | 0.13 | 8 | 0.00 | 0.08 |
潜在光化学效率Fv/Fo | 4 | 0.30 | 1.26 | 2 | 0.39 | 1.68 | 8 | 0.12 | 0.50 |
表1 盐胁迫和不同材料对无芒雀麦苗期影响的双因素方差分析
Table 1 Two-factor analysis of variance on effects of salt stress and different materials on B. inermis seedlings
指标 Index | 材料Materials | 盐处理Salt treatment | 材料×处理Materials×salt treatment | ||||||
---|---|---|---|---|---|---|---|---|---|
自由度df | 均方 Mean square | F | 自由度 df | 均方 Mean square | F | 自由度 df | 均方 Mean square | F | |
株高Plant height | 4 | 777.57 | 192.95*** | 2 | 108.55 | 26.94*** | 8 | 127.83 | 31.72*** |
分蘖数Number of tillers | 4 | 3.04 | 44.23*** | 2 | 1.35 | 19.62*** | 8 | 0.61 | 8.81*** |
茎粗Stem diameter | 4 | 0.70 | 24.08*** | 2 | 0.33 | 11.23*** | 8 | 0.08 | 2.90*** |
地上生物量Aboveground biomass | 4 | 27.08 | 380.11*** | 2 | 5.50 | 77.26*** | 8 | 2.35 | 32.99*** |
地下生物量Underground biomass | 4 | 17.64 | 161.41*** | 2 | 23.55 | 215.44*** | 8 | 1.35 | 12.34*** |
根冠比Root-crown ratio | 4 | 0.18 | 422.46*** | 2 | 0.81 | 1914.21*** | 8 | 0.09 | 211.73*** |
丙二醛MDA | 4 | 474739.30 | 536.83*** | 2 | 407127.30 | 460.38*** | 8 | 66493.20 | 75.19*** |
脯氨酸Pro | 4 | 927.37 | 78.77*** | 2 | 2111.03 | 179.31*** | 8 | 839.68 | 71.32*** |
可溶性糖Soluble sugar | 4 | 89.81 | 50.43*** | 2 | 161.78 | 90.84*** | 8 | 23.82 | 13.38*** |
初始荧光Fo | 4 | 1813.89 | 4.88*** | 2 | 1490.82 | 4.01 | 8 | 926.55 | 2.49* |
最大荧光Fm | 4 | 82546.16 | 50.26** | 2 | 25138.70 | 15.31*** | 8 | 16645.65 | 10.14*** |
最大光化学效率Fv/Fm | 4 | 0.00 | 0.08 | 2 | 0.00 | 0.13 | 8 | 0.00 | 0.08 |
潜在光化学效率Fv/Fo | 4 | 0.30 | 1.26 | 2 | 0.39 | 1.68 | 8 | 0.12 | 0.50 |
材料 Materials | 盐处理 Salt treatment | 株高 Plant height (cm) | 茎粗 Stem diameter (mm) | 分蘖数 Number of tillers | 地上生物量 Aboveground biomass (g) | 地下生物量 Underground biomass (g) | 根冠比 Root-crown ratio |
---|---|---|---|---|---|---|---|
L1 | CK | 32.80±1.76a | 1.75±0.07b | 3.40±0.20b | 8.97±0.49a | 8.63±0.67a | 0.96±0.12b |
M盐M salt | 28.91±1.07a | 1.88±0.09b | 3.87±0.07ab | 7.95±1.06b | 8.00±1.16ab | 1.01±0.09a | |
A盐A salt | 28.34±1.22a | 2.31±0.09a | 4.10±0.30a | 8.89±0.36a | 7.29±0.08b | 0.82±0.09c | |
L2 | CK | 34.65±1.54c | 1.65±0.06a | 2.90±0.15a | 8.25±0.79c | 7.58±1.18a | 0.92±0.10a |
M盐M salt | 44.10±1.67b | 1.81±0.14a | 2.23±0.19b | 9.57±0.81b | 7.45±0.55a | 0.79±0.16b | |
A盐A salt | 56.52±2.04a | 1.89±0.17a | 2.87±0.12a | 10.19±1.15a | 5.13±0.45b | 0.50±0.12c | |
L3 | CK | 22.34±0.87a | 2.55±0.11a | 4.63±0.33a | 6.60±0.53b | 8.91±0.31a | 1.35±0.08a |
M盐M salt | 20.57±0.93a | 2.35±0.11a | 3.63±0.46b | 6.12±0.67b | 6.43±0.13b | 1.05±0.07b | |
A盐A salt | 24.57±0.87a | 2.64±0.08a | 4.17±0.50ab | 8.07±0.68a | 6.58±0.45b | 0.82±0.13c | |
L4 | CK | 44.02±8.84a | 2.10±0.12a | 4.23±0.52a | 5.13±0.52b | 6.02±0.64a | 1.17±0.05a |
M盐M salt | 33.21±1.14b | 2.19±0.05a | 3.23±0.19b | 5.90±0.23a | 4.29±0.21b | 0.73±0.18b | |
A盐A salt | 44.38±1.16a | 2.39±0.09a | 2.83±0.09b | 5.89±0.08a | 3.46±0.94c | 0.59±0.14c | |
L5 | CK | 35.07±1.33a | 2.22±0.12a | 3.30±0.06a | 6.55±0.25a | 7.38±0.73a | 1.13±0.09b |
M盐M salt | 24.92±0.98b | 1.70±0.07b | 2.53±0.15b | 3.68±0.29b | 4.98±0.66b | 1.35±0.09a | |
A盐A salt | 24.42±1.40b | 2.11±0.08a | 3.37±0.28a | 6.18±0.50a | 3.60±0.53c | 0.58±0.12c |
表2 盐胁迫对5份无芒雀麦苗期生长特性的影响
Table 2 Effects of salt stress on growth characteristics of 5 B. inermis seedlings
材料 Materials | 盐处理 Salt treatment | 株高 Plant height (cm) | 茎粗 Stem diameter (mm) | 分蘖数 Number of tillers | 地上生物量 Aboveground biomass (g) | 地下生物量 Underground biomass (g) | 根冠比 Root-crown ratio |
---|---|---|---|---|---|---|---|
L1 | CK | 32.80±1.76a | 1.75±0.07b | 3.40±0.20b | 8.97±0.49a | 8.63±0.67a | 0.96±0.12b |
M盐M salt | 28.91±1.07a | 1.88±0.09b | 3.87±0.07ab | 7.95±1.06b | 8.00±1.16ab | 1.01±0.09a | |
A盐A salt | 28.34±1.22a | 2.31±0.09a | 4.10±0.30a | 8.89±0.36a | 7.29±0.08b | 0.82±0.09c | |
L2 | CK | 34.65±1.54c | 1.65±0.06a | 2.90±0.15a | 8.25±0.79c | 7.58±1.18a | 0.92±0.10a |
M盐M salt | 44.10±1.67b | 1.81±0.14a | 2.23±0.19b | 9.57±0.81b | 7.45±0.55a | 0.79±0.16b | |
A盐A salt | 56.52±2.04a | 1.89±0.17a | 2.87±0.12a | 10.19±1.15a | 5.13±0.45b | 0.50±0.12c | |
L3 | CK | 22.34±0.87a | 2.55±0.11a | 4.63±0.33a | 6.60±0.53b | 8.91±0.31a | 1.35±0.08a |
M盐M salt | 20.57±0.93a | 2.35±0.11a | 3.63±0.46b | 6.12±0.67b | 6.43±0.13b | 1.05±0.07b | |
A盐A salt | 24.57±0.87a | 2.64±0.08a | 4.17±0.50ab | 8.07±0.68a | 6.58±0.45b | 0.82±0.13c | |
L4 | CK | 44.02±8.84a | 2.10±0.12a | 4.23±0.52a | 5.13±0.52b | 6.02±0.64a | 1.17±0.05a |
M盐M salt | 33.21±1.14b | 2.19±0.05a | 3.23±0.19b | 5.90±0.23a | 4.29±0.21b | 0.73±0.18b | |
A盐A salt | 44.38±1.16a | 2.39±0.09a | 2.83±0.09b | 5.89±0.08a | 3.46±0.94c | 0.59±0.14c | |
L5 | CK | 35.07±1.33a | 2.22±0.12a | 3.30±0.06a | 6.55±0.25a | 7.38±0.73a | 1.13±0.09b |
M盐M salt | 24.92±0.98b | 1.70±0.07b | 2.53±0.15b | 3.68±0.29b | 4.98±0.66b | 1.35±0.09a | |
A盐A salt | 24.42±1.40b | 2.11±0.08a | 3.37±0.28a | 6.18±0.50a | 3.60±0.53c | 0.58±0.12c |
图1 盐胁迫对5份无芒雀麦苗期叶片叶绿素荧光参数的影响不同字母表示同一材料不同处理间差异显著(P<0.05)。下同。Different letters indicate that there are significant differences among different treatments of the same material (P<0.05). The same below.
Fig.1 Effects of salt stress on chlorophyll fluorescence parameters in leaves of 5 B. inermis seedlings
指标 Index | 株高 Plant height | 分蘖数 Number of tillers | 茎粗 Stem diameter | 地上生物量 Aboveground biomass | 地下生物量 Underground biomass | 根冠比 Root-crown ratio | 丙二醛 MDA | 脯氨酸 Pro | 可溶性糖 Soluble sugar | 初始 荧光 Fo | 最大 荧光 Fm | 最大光化学效率 Fv/Fm |
---|---|---|---|---|---|---|---|---|---|---|---|---|
分蘖数Number of tillers | -0.585 | |||||||||||
茎粗Stem diameter | -0.375 | 0.592 | ||||||||||
地上生物量Aboveground biomass | 0.715 | -0.036 | -0.061 | |||||||||
地下生物量Underground biomass | 0.237 | 0.196 | -0.213 | 0.775* | ||||||||
根冠比Root-crown ratio | 0.738* | -0.109 | 0.298 | 0.582 | -0.046 | |||||||
丙二醛MDA | 0.510 | 0.340 | -0.076 | 0.652 | 0.431 | 0.581 | ||||||
脯氨酸Pro | 0.675 | -0.472 | -0.592 | 0.115 | -0.236 | 0.438 | 0.488 | |||||
可溶性糖Soluble sugar | 0.414 | -0.811* | -0.912** | -0.139 | -0.149 | -0.183 | -0.140 | 0.679 | ||||
初始荧光Fo | -0.968** | 0.695 | 0.587 | -0.595 | -0.200 | -0.572 | -0.434 | -0.768 | -0.624 | |||
最大荧光Fm | -0.847 | 0.722 | 0.097 | -0.534 | -0.016 | -0.695 | -0.058 | -0.359 | -0.285 | 0.777* | ||
最大光化学效率Fv/Fm | -0.435 | 0.553 | -0.208 | -0.375 | -0.064 | -0.385 | 0.352 | 0.217 | 0.025 | 0.331 | 0.823* | |
潜在光化学效率Fv/Fo | -0.366 | 0.402 | -0.418 | -0.333 | 0.038 | -0.487 | 0.309 | 0.266 | 0.208 | 0.219 | 0.778 | 0.972** |
表3 中性盐胁迫下5份无芒雀麦苗期各指标耐盐系数相关性
Table 3 Correlation of salt tolerance coefficient of 5 B. inermis seedlings under neutral salt stress
指标 Index | 株高 Plant height | 分蘖数 Number of tillers | 茎粗 Stem diameter | 地上生物量 Aboveground biomass | 地下生物量 Underground biomass | 根冠比 Root-crown ratio | 丙二醛 MDA | 脯氨酸 Pro | 可溶性糖 Soluble sugar | 初始 荧光 Fo | 最大 荧光 Fm | 最大光化学效率 Fv/Fm |
---|---|---|---|---|---|---|---|---|---|---|---|---|
分蘖数Number of tillers | -0.585 | |||||||||||
茎粗Stem diameter | -0.375 | 0.592 | ||||||||||
地上生物量Aboveground biomass | 0.715 | -0.036 | -0.061 | |||||||||
地下生物量Underground biomass | 0.237 | 0.196 | -0.213 | 0.775* | ||||||||
根冠比Root-crown ratio | 0.738* | -0.109 | 0.298 | 0.582 | -0.046 | |||||||
丙二醛MDA | 0.510 | 0.340 | -0.076 | 0.652 | 0.431 | 0.581 | ||||||
脯氨酸Pro | 0.675 | -0.472 | -0.592 | 0.115 | -0.236 | 0.438 | 0.488 | |||||
可溶性糖Soluble sugar | 0.414 | -0.811* | -0.912** | -0.139 | -0.149 | -0.183 | -0.140 | 0.679 | ||||
初始荧光Fo | -0.968** | 0.695 | 0.587 | -0.595 | -0.200 | -0.572 | -0.434 | -0.768 | -0.624 | |||
最大荧光Fm | -0.847 | 0.722 | 0.097 | -0.534 | -0.016 | -0.695 | -0.058 | -0.359 | -0.285 | 0.777* | ||
最大光化学效率Fv/Fm | -0.435 | 0.553 | -0.208 | -0.375 | -0.064 | -0.385 | 0.352 | 0.217 | 0.025 | 0.331 | 0.823* | |
潜在光化学效率Fv/Fo | -0.366 | 0.402 | -0.418 | -0.333 | 0.038 | -0.487 | 0.309 | 0.266 | 0.208 | 0.219 | 0.778 | 0.972** |
指标 Index | 株高 Plant height | 分蘖数 Number of tillers | 茎粗 Stem diameter | 地上生物量 Aboveground biomass | 地下生物量 Underground biomass | 根冠比 Root-crown ratio | 丙二醛 MDA | 脯氨酸 Pro | 可溶性糖 Soluble sugar | 初始 荧光 Fo | 最大 荧光 Fm | 最大光化学效率Fv/Fm |
---|---|---|---|---|---|---|---|---|---|---|---|---|
分蘖数Number of tillers | -0.797 | |||||||||||
茎粗Stem diameter | -0.585 | 0.615 | ||||||||||
地上生物量Aboveground biomass | 0.390 | 0.176 | -0.355 | |||||||||
地下生物量Underground biomass | -0.298 | 0.809* | 0.341 | 0.670 | ||||||||
根冠比Root-crown ratio | 0.758 | -0.933** | -0.802 | 0.012 | -0.733 | |||||||
丙二醛MDA | 0.393 | 0.013 | -0.565 | 0.781 | 0.484 | 0.089 | ||||||
脯氨酸Pro | 0.797 | -0.492 | -0.174 | 0.442 | -0.080 | 0.488 | 0.057 | |||||
可溶性糖Soluble sugar | 0.823* | -0.826* | -0.295 | -0.101 | -0.509 | 0.603 | 0.128 | 0.518 | ||||
初始荧光Fo | -0.212 | 0.425 | 0.907** | -0.101 | 0.380 | -0.628 | -0.422 | 0.233 | -0.034 | |||
最大荧光Fm | -0.392 | 0.460 | 0.930** | -0.353 | 0.303 | -0.738 | -0.389 | -0.152 | -0.002 | 0.888** | ||
最大光化学效率Fv/Fm | 0.409 | 0.037 | 0.362 | 0.343 | 0.428 | -0.263 | 0.285 | 0.478 | 0.491 | 0.652 | 0.584 | |
潜在光化学效率Fv/Fo | 0.149 | 0.060 | 0.372 | -0.034 | 0.261 | -0.363 | 0.261 | -0.035 | 0.497 | 0.465 | 0.680 | 0.817* |
表4 碱性盐胁迫下5份无芒雀麦苗期各指标耐盐系数相关性
Table 4 Correlation of salt tolerance coefficient of 5 B. inermis seedlings under alkaline salt stress
指标 Index | 株高 Plant height | 分蘖数 Number of tillers | 茎粗 Stem diameter | 地上生物量 Aboveground biomass | 地下生物量 Underground biomass | 根冠比 Root-crown ratio | 丙二醛 MDA | 脯氨酸 Pro | 可溶性糖 Soluble sugar | 初始 荧光 Fo | 最大 荧光 Fm | 最大光化学效率Fv/Fm |
---|---|---|---|---|---|---|---|---|---|---|---|---|
分蘖数Number of tillers | -0.797 | |||||||||||
茎粗Stem diameter | -0.585 | 0.615 | ||||||||||
地上生物量Aboveground biomass | 0.390 | 0.176 | -0.355 | |||||||||
地下生物量Underground biomass | -0.298 | 0.809* | 0.341 | 0.670 | ||||||||
根冠比Root-crown ratio | 0.758 | -0.933** | -0.802 | 0.012 | -0.733 | |||||||
丙二醛MDA | 0.393 | 0.013 | -0.565 | 0.781 | 0.484 | 0.089 | ||||||
脯氨酸Pro | 0.797 | -0.492 | -0.174 | 0.442 | -0.080 | 0.488 | 0.057 | |||||
可溶性糖Soluble sugar | 0.823* | -0.826* | -0.295 | -0.101 | -0.509 | 0.603 | 0.128 | 0.518 | ||||
初始荧光Fo | -0.212 | 0.425 | 0.907** | -0.101 | 0.380 | -0.628 | -0.422 | 0.233 | -0.034 | |||
最大荧光Fm | -0.392 | 0.460 | 0.930** | -0.353 | 0.303 | -0.738 | -0.389 | -0.152 | -0.002 | 0.888** | ||
最大光化学效率Fv/Fm | 0.409 | 0.037 | 0.362 | 0.343 | 0.428 | -0.263 | 0.285 | 0.478 | 0.491 | 0.652 | 0.584 | |
潜在光化学效率Fv/Fo | 0.149 | 0.060 | 0.372 | -0.034 | 0.261 | -0.363 | 0.261 | -0.035 | 0.497 | 0.465 | 0.680 | 0.817* |
项目 Item | M盐M salt | A盐A salt | ||||
---|---|---|---|---|---|---|
主成分1 Principal component 1 | 主成分2 Principal component 2 | 主成分3 Principal component 3 | 主成分1 Principal component 1 | 主成分2 Principal component 2 | 主成分3 Principal component 3 | |
脯氨酸Pro | 0.97 | -0.13 | 0.20 | 0.57 | 0.77 | -0.11 |
丙二醛MDA | 0.91 | -0.09 | 0.20 | -0.65 | 0.38 | -0.25 |
最大光化学效率Fv/Fm | 0.80 | 0.59 | -0.09 | 0.96 | 0.24 | -0.06 |
潜在光化学效率Fv/Fo | 0.66 | 0.65 | -0.12 | 0.72 | 0.43 | -0.46 |
最大荧光Fm | 0.02 | 0.93 | 0.34 | 0.88 | 0.03 | -0.33 |
分蘖数Number of tillers | -0.01 | 0.82 | -0.02 | -0.20 | -0.88 | 0.23 |
地上生物量Aboveground biomass | 0.16 | -0.18 | 0.97 | 0.59 | 0.57 | 0.57 |
茎粗Stem diameter | 0.09 | 0.32 | 0.92 | 0.74 | -0.48 | -0.25 |
株高Plant height | -0.66 | 0.07 | 0.73 | 0.46 | 0.43 | 0.61 |
地下生物量Underground biomass | -0.42 | 0.62 | 0.66 | 0.69 | -0.66 | 0.29 |
根冠比Root-crown ratio | 0.50 | -0.59 | 0.61 | -0.39 | 0.92 | -0.07 |
初始荧光Fo | 0.28 | 0.43 | -0.47 | 0.67 | -0.44 | -0.35 |
可溶性糖Soluble sugar | -0.39 | 0.56 | -0.29 | 0.97 | -0.02 | 0.20 |
特征值Eigenvalues | 3.95 | 3.70 | 3.63 | 6.11 | 3.96 | 1.47 |
贡献率Contribution rate (%) | 30.38 | 28.49 | 27.93 | 47.01 | 30.42 | 11.33 |
累计贡献率Cumulative contribution (%) | 30.38 | 58.87 | 86.80 | 47.01 | 77.43 | 88.76 |
表5 5份无芒雀麦各指标耐盐系数主成分分析的特征向量及贡献率
Table 5 The characteristic vector and contribution rate of principal component analysis of salt tolerance coefficient in 5 B. inermis
项目 Item | M盐M salt | A盐A salt | ||||
---|---|---|---|---|---|---|
主成分1 Principal component 1 | 主成分2 Principal component 2 | 主成分3 Principal component 3 | 主成分1 Principal component 1 | 主成分2 Principal component 2 | 主成分3 Principal component 3 | |
脯氨酸Pro | 0.97 | -0.13 | 0.20 | 0.57 | 0.77 | -0.11 |
丙二醛MDA | 0.91 | -0.09 | 0.20 | -0.65 | 0.38 | -0.25 |
最大光化学效率Fv/Fm | 0.80 | 0.59 | -0.09 | 0.96 | 0.24 | -0.06 |
潜在光化学效率Fv/Fo | 0.66 | 0.65 | -0.12 | 0.72 | 0.43 | -0.46 |
最大荧光Fm | 0.02 | 0.93 | 0.34 | 0.88 | 0.03 | -0.33 |
分蘖数Number of tillers | -0.01 | 0.82 | -0.02 | -0.20 | -0.88 | 0.23 |
地上生物量Aboveground biomass | 0.16 | -0.18 | 0.97 | 0.59 | 0.57 | 0.57 |
茎粗Stem diameter | 0.09 | 0.32 | 0.92 | 0.74 | -0.48 | -0.25 |
株高Plant height | -0.66 | 0.07 | 0.73 | 0.46 | 0.43 | 0.61 |
地下生物量Underground biomass | -0.42 | 0.62 | 0.66 | 0.69 | -0.66 | 0.29 |
根冠比Root-crown ratio | 0.50 | -0.59 | 0.61 | -0.39 | 0.92 | -0.07 |
初始荧光Fo | 0.28 | 0.43 | -0.47 | 0.67 | -0.44 | -0.35 |
可溶性糖Soluble sugar | -0.39 | 0.56 | -0.29 | 0.97 | -0.02 | 0.20 |
特征值Eigenvalues | 3.95 | 3.70 | 3.63 | 6.11 | 3.96 | 1.47 |
贡献率Contribution rate (%) | 30.38 | 28.49 | 27.93 | 47.01 | 30.42 | 11.33 |
累计贡献率Cumulative contribution (%) | 30.38 | 58.87 | 86.80 | 47.01 | 77.43 | 88.76 |
处理 Treatment | 材料 Materials | 主成分1 Principal component 1 | 主成分2 Principal component 2 | 主成分3 Principal component 3 | U(X1) | U(X2) | U(X3) | D值 D value | 耐盐性排名 Salt tolerance ranking |
---|---|---|---|---|---|---|---|---|---|
M盐 M salt | L1 | 0.51 | 0.61 | 0.52 | 0.13 | 1.00 | 0.50 | 0.54 | 2 |
L2 | 0.47 | 0.52 | 0.65 | 0.04 | 0.19 | 0.99 | 0.39 | 3 | |
L3 | 0.45 | 0.45 | 0.51 | 0.00 | 0.08 | 0.46 | 0.18 | 4 | |
L4 | 0.90 | 0.40 | 0.65 | 1.00 | 0.00 | 1.00 | 0.67 | 1 | |
L5 | 0.55 | 0.52 | 0.39 | 0.22 | 0.19 | 0.00 | 0.14 | 5 | |
权重Weight | 0.35 | 0.33 | 0.32 | ||||||
A盐 A salt | L1 | 0.68 | -0.82 | -0.04 | 0.98 | 0.00 | 0.42 | 0.57 | 4 |
L2 | 0.30 | 0.36 | 0.13 | 0.85 | 0.80 | 0.95 | 0.85 | 2 | |
L3 | 0.33 | -0.03 | 0.15 | 0.86 | 0.54 | 1.00 | 0.77 | 3 | |
L4 | 0.73 | 0.65 | -0.17 | 1.00 | 1.00 | 0.00 | 0.87 | 1 | |
L5 | -2.05 | -0.03 | -0.04 | 0.00 | 0.53 | 0.41 | 0.24 | 5 | |
权重Weight | 0.53 | 0.34 | 0.13 |
表6 5份无芒雀麦苗期各综合指标值、权重、隶属函数值、D值及综合评价
Table 6 The comprehensive index value, weight, membership function value, D value and comprehensive evaluation of 5 B. inermis seedlings
处理 Treatment | 材料 Materials | 主成分1 Principal component 1 | 主成分2 Principal component 2 | 主成分3 Principal component 3 | U(X1) | U(X2) | U(X3) | D值 D value | 耐盐性排名 Salt tolerance ranking |
---|---|---|---|---|---|---|---|---|---|
M盐 M salt | L1 | 0.51 | 0.61 | 0.52 | 0.13 | 1.00 | 0.50 | 0.54 | 2 |
L2 | 0.47 | 0.52 | 0.65 | 0.04 | 0.19 | 0.99 | 0.39 | 3 | |
L3 | 0.45 | 0.45 | 0.51 | 0.00 | 0.08 | 0.46 | 0.18 | 4 | |
L4 | 0.90 | 0.40 | 0.65 | 1.00 | 0.00 | 1.00 | 0.67 | 1 | |
L5 | 0.55 | 0.52 | 0.39 | 0.22 | 0.19 | 0.00 | 0.14 | 5 | |
权重Weight | 0.35 | 0.33 | 0.32 | ||||||
A盐 A salt | L1 | 0.68 | -0.82 | -0.04 | 0.98 | 0.00 | 0.42 | 0.57 | 4 |
L2 | 0.30 | 0.36 | 0.13 | 0.85 | 0.80 | 0.95 | 0.85 | 2 | |
L3 | 0.33 | -0.03 | 0.15 | 0.86 | 0.54 | 1.00 | 0.77 | 3 | |
L4 | 0.73 | 0.65 | -0.17 | 1.00 | 1.00 | 0.00 | 0.87 | 1 | |
L5 | -2.05 | -0.03 | -0.04 | 0.00 | 0.53 | 0.41 | 0.24 | 5 | |
权重Weight | 0.53 | 0.34 | 0.13 |
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