Effect of genotype and environment on agronomical characters of alfalfa (Medicago sativa L.) in a typical acidic soil environment in southwest China

Tian, Zheng; Yang, Zhengyu; Lu, Zhongjie; Luo, Ben; Hao, Yunfei; Wang, Xiaowen; Feng, Yijun; Wang, Song; Chen, Chao; Dong, Rui

doi:10.3389/fsufs.2023.1144061

Cited by 3 publications

(2 citation statements)

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“…The generalized heritability is calculated according to the following formula (Tian et al, 2023). is the error, n l is the environment, and n r is the number of replicates.…”

Section: Heritability Calculationmentioning

confidence: 99%

“…A pivotal facet in plant agronomy lies in comprehending the intricate interplay between genotype and environment. Such interactions significantly impact agronomic traits across varied plant species, including wheat, oats, and alfalfa (Purchase, 1997;Peterson et al, 2005;Qiu et al, 2023;Tian et al, 2023). Distinct acidic soils further underscore genotype's pivotal role in shaping alfalfa traits, as elucidated by Achir et al (2020), who deem environmental influence on alfalfa yield as paramount.…”

Section: G × E Interaction and Salt Tolerance Evaluationmentioning

confidence: 99%

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Genetic diversity and salt tolerance assessment of 51 alfalfa (Medicago sativa) varieties under saline soil conditions

Fan,

Chen,

et al. 2023

Front. Sustain. Food Syst.

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IntroductionSalt stress significantly impacts plant growth worldwide. Although alfalfa exhibits some tolerance to salt-alkali soils, the specific salt tolerance levels across different alfalfa varieties remain inadequately understood. For this purpose, we conducted a study to investigate the diversity of agronomic traits of alfalfa (Medicago sativa) under different soil environments in order to elucidate the salt tolerance of 51 alfalfa varieties.MethodsWe chose three different soil conditions for our study: normal conditions in Yantai as control, saline conditions in Yantai with soil salt concentrations ranging from 0.25 to 0.33%, and saline-alkali conditions in Dongying with soil salt concentrations ranging from 0.28 to 0.32%. We chose 51 alfalfa varieties from different sources as our experimental materials. Planting was conducted following a completely randomized block design with three replicates for each variety. Harvesting was performed when the plants reached 50% flowering, cutting them at a height of 5 cm above the ground. Comprehensive assessments encompassed 10 parameters, namely fresh weight, dry weight, stem-leaf ratio, branch count, plant height, crude protein content, crude fat content, acid detergent fiber, neutral detergent fiber, and ash content.ResultsOur findings revealed that the 51 studied alfalfa varieties displayed significant generalized heritability and coefficient of variation, indicating a high level of genetic diversity. Using principal component and cluster analyses, we categorized the varieties into three distinct clusters based on their agronomic traits. Grey correlation degree analysis revealed the commendable performance of Ying st, PI 672734, and Mei zuo across diverse environments. Genotype emerged as a predominant determinant of all parameters, except crude fat, acid detergent fiber, and neutral detergent fiber. Through the application of membership function analysis, PI 672768 emerged as a variety that demonstrated strong tolerance in both saline soil contexts.DiscussionDespite extensive previous studies indicating Zhong Mu No. 1 as a salt-tolerant alfalfa variety, its performance in this experiment did not distinguish itself. The findings of this study provide a fundamental basis for improving the management of saline-alkali lands and advancing alfalfa cultivation practices.

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“…The generalized heritability is calculated according to the following formula (Tian et al, 2023). is the error, n l is the environment, and n r is the number of replicates.…”

Section: Heritability Calculationmentioning

confidence: 99%

Section: G × E Interaction and Salt Tolerance Evaluationmentioning

confidence: 99%

Genetic diversity and salt tolerance assessment of 51 alfalfa (Medicago sativa) varieties under saline soil conditions

Fan,

Chen,

et al. 2023

Front. Sustain. Food Syst.

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Biochar and microorganism assisted phytoremediation of severely molybdenum-contaminated soil: Efficacy, mechanisms and the impact of low temperatures

Li,

Xing,

et al. 2024

Journal of Cleaner Production

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Promising breeding samples of alfalfa

Buhaiov,

Horenskyi

2024

FFP

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Purpose. Assessment of feed and seed productivity of alfalfa breeding material on the background of increased soil acidity in the nursery of a competitive variety trial. Methods. Field (conducting phenological observations and records of the harvest of dry matter and seeds), laboratory (determining the yield of dry matter and the structure of the seed cover), mathematical and statistical (objective evaluation of the obtained experimental data). Results. The feed and seed productivity of promising breeding samples of alfalfa in conditions of increased soil acidity (pH 5.2-5.4) was evaluated. Samples exceeding the standard Sinyukha variety by 6-33% (+0.75-4.14 t/ha) (11/21, 12/21, 14/21, 15/21, 16/ 21, 18/21, 23/21, 26/21, 29/21) were selected. 11 samples (1/21-6/21, 8/21, 19/21, 24/21, 26/21, 32/21) were characterized by relatively high seed productivity compared to the standard Sinyukha variety and the average interpopulation level (SMP) on + 8- 40%, or by 0.041-0.196 t/ha. Only two samples (11/21, 14/2) were able to exceed the standard Radoslava variety, which has a slightly higher feed productivity than the Sinyukha one by 0.83-1.27 t/ha (+5-8%). Among the promising samples in the nursery of the competitive variety testing only 3/21 and 8/21 exceeded the Radoslava variety by 13-23% (+0.08-0.139 t/ha) in terms of seed productivity. Conclusions. According to the research results of the two years of alfalfa grass stands use (sown in 2022-2023) in the nursery of competitive variety testing, promising breeding samples based on dry matter content and seed productivity were selected for further breeding. After refinement they will be used to create synthetic varieties tolerant to high acidity soil.

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Effect of genotype and environment on agronomical characters of alfalfa (Medicago sativa L.) in a typical acidic soil environment in southwest China

Cited by 3 publications

References 59 publications

Genetic diversity and salt tolerance assessment of 51 alfalfa (Medicago sativa) varieties under saline soil conditions

Genetic diversity and salt tolerance assessment of 51 alfalfa (Medicago sativa) varieties under saline soil conditions

Biochar and microorganism assisted phytoremediation of severely molybdenum-contaminated soil: Efficacy, mechanisms and the impact of low temperatures

Promising breeding samples of alfalfa

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