| 不同盐碱胁迫条件下PAM施用深度对藜麦生长及产量的影响 |
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| 引用本文： | 梁萍,张永清,张萌,高艳梅,王丹,严翻翻,合佳敏,王慧娟.不同盐碱胁迫条件下PAM施用深度对藜麦生长及产量的影响[J].干旱地区农业研究,2023(5):130-137. |
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| 作者姓名： | 梁萍 张永清 张萌 高艳梅 王丹 严翻翻 合佳敏 王慧娟 |
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| 作者单位： | 山西师范大学生命科学学院，山西 太原 030000;山西师范大学生命科学学院，山西 太原 030000；山西师范大学地理科学学院,山西 太原 030000 |
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| 基金项目： | 国家自然科学基金(NSFC-31571604) |
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| 摘 要： | 以‘陇藜4号’为试验材料，采用根管土柱栽培的方式，研究了不同程度盐碱胁迫(S1:轻度盐碱胁迫；S2:中度盐碱胁迫；S3:重度盐碱胁迫)条件下土壤调理剂PAM施用深度(PAM0-10:距地表0～10 cm; PAM10-20:距地表10～20 cm; PAM20-30:距地表20～30 cm; PAM0-30:距地表0～30 cm)对藜麦根系生长、叶片渗透调节物质含量、植株生物量及产量的影响。结果表明：在PAM施用深度为0～10 cm时，轻度盐胁迫处理藜麦的根长、生物量及产量指标较对照组(S0:不加入盐碱和PAM)分别高出35.71%、15.48%和4.60%,表明藜麦具有较强的耐盐能力。当盐碱胁迫增加到一定程度(S2和S3处理)时，藜麦的形态指标有显著下降趋势，与对照组处理相比重度盐胁迫藜麦的根长、生物量下降幅度最大，平均分别下降了53.72%和62.99%,但在同等重度盐碱胁迫程度时，PAM0-10处理能够缓解盐碱对藜麦生长产生的胁迫作用，与对照组相比藜麦的根长和生物量分别降...
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| 关 键 词： | 藜麦 盐碱胁迫 PAM 施用深度 生长 产量 |
Effects of PAM application depth on the growth and yield of quinoa under different salt\|alkali stress |
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| LIANG Ping,ZHANG Yongqing,ZHANG Meng,GAO Yanmei,WANG Dan,YAN Fanfan,HE Jiamin,WANG Huijuan.Effects of PAM application depth on the growth and yield of quinoa under different salt\|alkali stress[J].Agricultural Research in the Arid Areas,2023(5):130-137. |
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| Authors: | LIANG Ping ZHANG Yongqing ZHANG Meng GAO Yanmei WANG Dan YAN Fanfan HE Jiamin WANG Huijuan |
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| Abstract: | Taking Longli No.4 as the experimental material, the effects of soil conditioner PAM application depth (PAM0-10: 0~10 cm from the surface, PAM10-20: 10~20 cm from the surface, PAM20-30: 20~30 cm from the surface, PAM0-30: 0~30 cm from the surface ) on the root growth, leaf osmotic adjustment substance content, plant biomass and yield of quinoa under different degrees of saline\|alkali stress (S1: mild saline\|alkali stress, S2: moderate saline\|alkali stress, S3: severe saline\|alkali stress ) were studied by root canal soil column cultivation. The results showed that when the depth of PAM application was 0~10 cm, the root length, biomass and yield indexes of quinoa under mild salt stress were 35.71%, 15.48% and 4.60% higher than those of the control group (S0: no saline\|alkali and PAM), respectively, indicating that quinoa did have strong salt tolerance. When the saline\|alkali stress increased to a certain extent (S2 and S3 treatment), the morphological indexes of quinoa showed a significant downward trend. Compared with the control group, the root length and biomass of quinoa under severe saline\|alkali stress decreased the most, which decreased by 53.72% and 62.99% respectively. However, under the same degree of severe saline\|alkali stress, PAM0-10 treatment could alleviate the stress effect of saline\|alkali on the growth of quinoa. Compared with the control group, the root length and biomass indexes of quinoa decreased by 39.31% and 45.42%, respectively. Based on the comprehensive indexes, the effects of different PAM application methods on the growth indexes of quinoa under different saline\|alkali stress conditions showed that the effect of surface centralized application (PAM0-10) was the best (P<0.05). The membership function analysis showed that the growth of quinoa was alleviated under different treatment conditions as follows: S1>S2>S3, PAM0-10>PAM0-30>PAM10-20>PAM20-30, indicating that in the actual cultivation process, the method of concentrated application of PAM (0~10 cm) on the surface layer had the most obvious mitigation effect on the growth of quinoa under saline\|alkali stress. |
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| Keywords: | quinoa saline\|alkali stress PAM application depth growth yield |
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