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Статті в журналах з теми "Alfalfa plant"

Автор: Grafiati

Опубліковано: 10 березня 2023

Оновлено: 25 липня 2025

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1

Li, Fang, and Yanzhong Li. "Evaluation of pathogenicity, systemic colonisation, and host range of Verticillium alfalfae in a greenhouse." Crop and Pasture Science 72, no. 5 (2021): 383. http://dx.doi.org/10.1071/cp20449.

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Verticillium wilt of alfalfa (Medicago sativa) is a widespread and destructive disease caused by the soil-borne fungal pathogen Verticillium alfalfae (formerly V. albo-atrum before 2011). Owing to an inadequate understanding of the pathogenicity, systemic colonisation, and host range of V. alfalfae, it has been challenging to develop an effective control measure against this disease. In the present study, seven inoculation methods, including seed inoculation, leaf spraying (LS), fungal plugs placed on leaves (FP), stem injection (SI), root dipping (RD), root injuring and dipping (RI), and wate

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2

Bhattarai, Surendra, Dilip Biswas, Yong-Bi Fu, and Bill Biligetu. "Morphological, Physiological, and Genetic Responses to Salt Stress in Alfalfa: A Review." Agronomy 10, no. 4 (2020): 577. http://dx.doi.org/10.3390/agronomy10040577.

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Alfalfa (Medicago sativa L.) is an important legume forage crop. However, its genetic improvement for salt tolerance is challenging, as alfalfa’s response to salt stress is genetically and physiologically complex. A review was made to update the knowledge of morphological, physiological, biochemical, and genetic responses of alfalfa plants to salt stress, and to discuss the potential of applying modern plant technologies to enhance alfalfa salt-resistant breeding, including genomic selection, RNA-Seq analysis, and cutting-edge Synchrotron beamlines. It is clear that alfalfa salt tolerance can

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3

Xu, Shan, Michael J. Christensen, Rebecca Creamer, and Yan Zhong Li. "Identification, Characterization, Pathogenicity, and Distribution of Verticillium alfalfae in Alfalfa Plants in China." Plant Disease 103, no. 7 (2019): 1565–76. http://dx.doi.org/10.1094/pdis-07-18-1272-re.

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Verticillium wilt caused by Verticillium alfalfae results in severe production losses in alfalfa crops and is a Class A quarantined disease in China. During 2015 to 2017, 365 alfalfa fields from 21 locations in six provinces were surveyed, and 45 fields from three closely located sites in Gansu, China were found to have alfalfa plants with symptoms typical of Verticillium wilt, with disease incidence of 12.6 to 53.6%. Isolates were identified to species using morphological characteristics and a maximum likelihood phylogeny of the concatenated partial sequences of actin, elongation factor, glyc

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4

Juan, N. A., C. C. Sheaffer, and D. K. Barnes. "Root and crown characteristics of alfalfas varying in fall dormancy." Canadian Journal of Plant Science 74, no. 1 (1994): 125–27. http://dx.doi.org/10.4141/cjps94-022.

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We compared root and crown characteristics of five alfalfa (Medicago sativa L.) entries which differed in fall dormancy. Alfalfas were subjected to bud or mid-bloom harvests. The most consistent entry effect occurred for root and crown dry weight and root total nonstructural carbohydrate (TNC) concentrations. Root TNC concentration was highest and root and crown weight were greatest for the nondormant and least in the most dormant entries. Entries did not consistently differ in crown bud numbers, shoot number, or shoot origin. In October, the number of elongated crown buds were greater for a n

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5

Hendrickson, John R., Mark A. Liebig, and John D. Berdahl. "Responses of Medicago sativa and M. falcata type alfalfas to different defoliation times and grass competition." Canadian Journal of Plant Science 88, no. 1 (2008): 61–69. http://dx.doi.org/10.4141/cjps06012.

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Incorporating alfalfa into rangelands can enhance the quantity and quality of forage production. We evaluated the impact of clipping timing and selective clipping on two M. falcata (Anik and Yellowhead) and one M. sativa type alfalfas (Vernal) near Mandan, North Dakota, USA. Cultivars were space-planted into an existing mixed grass prairie and clipped at the mid-bud, flower or flower and subsequent vegetative stages. In each clipping treatment, half of the plots had only the alfalfa clipped and half had both the alfalfa and the associated native vegetation clipped. Plots without alfalfa were a

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6

Manglitz, G. R., and Michael Rethwisch. "Alfalfa Weevil and Plant Bug Control in Alfalfa, 1984." Insecticide and Acaricide Tests 10, no. 1 (1985): 181. http://dx.doi.org/10.1093/iat/10.1.181.

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Abstract This test was conducted at the University of Nebraska Field Laboratory, Mead, NE in a fourth-year stand of ‘Vernal’ alfalfa. Plots were 9 X 15 ft, arranged in a randomized complete block design replicated 4 times. A single application of 10 insecticides, at various rates, was made on 26 May ’84. Insecticides were applied with a CO2, activated pressure sprayer calibrated to deliver 12.5 gal/acre at 20 psi and equipped with a 5.5-ft boom. Each plot was sampled twice, 6 and 12 days posttreatment, by taking 5 sweeps per plot with a 15-inch diam insect net.

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7

Li, Shuo, Zhongnan Nie, Juan Sun, Xianglin Li, and Guofeng Yang. "The Physiological Role of Abscisic Acid in Regulating Root System Architecture of Alfalfa in Its Adaptation to Water Deficit." Agronomy 12, no. 8 (2022): 1882. http://dx.doi.org/10.3390/agronomy12081882.

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Alfalfa (Medicago sativa L.) is a perennial leguminous plant, with a strong tap root system that plays an important role in alfalfa’s adaptation to drought stress. However, a better understanding of root functional traits and how these root traits are related to whole plant responses in order to improve pasture productivity under water deficit. Two greenhouse experiments were conducted: Experiment 1 used three alfalfa cultivars and four levels of soil water content treatments to investigate herbage productivity, growth point density, residual shoot weight, and root weight. Experiment 2 assesse

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8

Jing, Fang, Shangli Shi, Yun A, et al. "Analysis of Phenotypic and Physiological Characteristics of Plant Height Difference in Alfalfa." Agronomy 13, no. 7 (2023): 1744. http://dx.doi.org/10.3390/agronomy13071744.

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Cultivating new alfalfa (Medicago sativa L.) varieties with high yield and quality is of great significance for improving alfalfa yield and promoting the development of the grass and livestock industry. Plant height is an important indicator of alfalfa yield and is closely related to photosynthetic capacity, harvest index and yield. However, the underlying cause of the variation in height among alfalfa plants is not clear. In this paper, we measured the phenotypic traits, photosynthetic physiology and endogenous hormone content of tall- and short-stalked alfalfa materials and analyzed the impo

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9

Jing, Fang, Shangli Shi, Wenjuan Kang, et al. "The Physiological Basis of Alfalfa Plant Height Establishment." Plants 13, no. 5 (2024): 679. http://dx.doi.org/10.3390/plants13050679.

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Plant height plays an important role in crop yield, product quality, and cultivation management. However, the physiological mechanisms that regulate the establishment of plant height in alfalfa plants remain unclear. Herein, we measured plant height traits, leaf characteristics, photosynthetic physiology, cell wall composition, and endogenous hormone contents of tall- and short-stalked alfalfa materials at different reproductive periods. We analyzed the physiology responsible for differences in plant height. The results demonstrated that the number of internodes in tall- and short-stalked alfa

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10

Wang, Yajie, Yingde Li, Zhen Tian, and Tingyu Duan. "Arbuscular Mycorrhizal Fungus Alters Alfalfa (Medicago sativa) Defense Enzyme Activities and Volatile Organic Compound Contents in Response to Pea Aphid (Acyrthosiphon pisum) Infestation." Journal of Fungi 8, no. 12 (2022): 1308. http://dx.doi.org/10.3390/jof8121308.

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Pea aphid (Acyrthosiphon pisum) infestation leads to withering, reduced yield, and lower quality of the host plant. Arbuscular mycorrhizal (AM) fungi have been found to enhance their host plants’ nutrient uptake, growth, and resistance to biotic stresses, including pathogen infection and insect pest infestation. Therefore, we evaluated the effects of AM fungus Rhizophagus intraradices on alfalfa defense responses to pea aphid infestation. Aphid infestation did not affect the colonization of AM fungus. The inoculation of AM fungus, on average, enhanced alfalfa catalase and the contents of salic

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11

Soroka, Juliana J., and Dorothy C. Murrell. "THE EFFECTS OF ALFALFA PLANT BUG (HEMIPTERA: MIRIDAE) FEEDING LATE IN THE SEASON ON ALFALFA SEED YIELD IN NORTHERN SASKATCHEWAN." Canadian Entomologist 125, no. 5 (1993): 815–24. http://dx.doi.org/10.4039/ent125815-5.

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AbstractA 4-year field cage study was conducted to determine what effects feeding of alfalfa plant bug, Adelphocoris lineolatus (Goeze), late in the season had on alfalfa seed yields. When zero, one, two, or four alfalfa plant bugs were placed in sleeve cages containing stems of alfalfa at the green pod stage of growth, there was a significant decrease in the number of pods per cage and per raceme, the number of healthy seeds, and the weight of seeds with two or four bugs per cage. Increasing the duration of infestation resulted in significant increases in the number of damaged seeds per cage.

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12

Rumbaugh, M. D., and B. M. Pendery. "Stability of forage yield of alfalfa clones grown with five associate species." Canadian Journal of Plant Science 71, no. 2 (1991): 453–59. http://dx.doi.org/10.4141/cjps91-062.

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Single species spaced-plant clonal nurseries are useful in the first stage of selection to develop forage crop cultivars for semiarid and arid environment pastures. The objectives of this study were (1) to quantify the degree of stability of forage yield of individual alfalfa (Medicago sativa L.) clones when grown with five associate species and (2) to examine the relationships of alfalfa and the associate species in the determination of total plot forage yield in a spaced-plant nursery with a stand density comparable to that of natural plant communities on semiarid rangelands. One hundred pla

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13

Yang, Bo, Yao Zhao, and Zhenfei Guo. "Research Progress and Prospect of Alfalfa Resistance to Pathogens and Pests." Plants 11, no. 15 (2022): 2008. http://dx.doi.org/10.3390/plants11152008.

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Alfalfa is one of the most important legume forages in the world and contributes greatly to the improvement of ecosystems, nutrition, and food security. Diseases caused by pathogens and pests severely restrict the production of alfalfa. Breeding resistant varieties is the most economical and effective strategy for the control of alfalfa diseases and pests, and the key to breeding resistant varieties is to identify important resistance genes. Plant innate immunity is the theoretical basis for identifying resistant genes and breeding resistant varieties. In recent years, the framework of plant i

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14

Qiong, Wu, Wang Yu hui, Zhang Xiao hong, Li En hui, and Yang Shen jiao. "Analysis of Crop Growth Rhythm in Alfalfa - Wheat Intercropping." Scholars Journal of Agriculture and Veterinary Sciences 9, no. 3 (2022): 35–42. http://dx.doi.org/10.36347/sjavs.2022.v09i03.002.

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Logistic equation was used to fit the plant height growth of wheat and alfalfa in different intercropping treatments, and the effects of intercropping on the plant height growth of wheat and alfalfa were analyzed according to the results of fitting curve model parameters. The results showed that the plant height growth of wheat and alfalfa under different intercropping patterns was in line with "S" curve. According to the turning point of the growth curve, the plant height growth can be divided into three stages: gradual growth stage, linear growth stage and slow growth stage. In late March, w

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15

Wang, Shengze, Haibin Han, Bo Zhang, et al. "Identification of Crucial Genes and Regulatory Pathways in Alfalfa against Fusarium Root Rot." Plants 12, no. 20 (2023): 3634. http://dx.doi.org/10.3390/plants12203634.

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Fusarium root rot, caused by Fusarium spp. in alfalfa (Medicago sativa L.), adversely impacts alfalfa by diminishing plant quality and yield, resulting in substantial losses within the industry. The most effective strategy for controlling alfalfa Fusarium root rot is planting disease-resistant varieties. Therefore, gaining a comprehensive understanding of the mechanisms underlying alfalfa’s resistance to Fusarium root rot is imperative. In this study, we observed the infection process on alfalfa seedling roots infected by Fusarium acuminatum strain HM29-05, which is labeled with green fluoresc

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16

I., Prihantoro,, Anandia, A., Aryanto, A. T., Setiana, M. A., and Karti, P. D. M. H. "THE ADAPTATION LEVEL OF ALFALFA (MEDICAGO SATIVA L.) THAT IRRADIATED WITH GAMMA RAYS ON A FIELD SCALE." Pastura 9, no. 1 (2019): 1. http://dx.doi.org/10.24843/pastura.2019.v09.i01.p01.

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Alfalfa (Medicago sativa L.) a high nutritious and palatability legume for ruminant. Constrain of alfalfa availability in Indonesia are due to the plant adaptability in tropical environment. Aim of the study was to measure the adaptation level of alfalfa that irradiated with gamma rays on a field scale. The study consisted of four types of plant sources, mutation plants with different gamma ray levels (0Gy, 200Gy, 300Gy and 400Gy). Plant tillers was analyzed with a complete randomized design with 3 replications, 20 plants per replication. Growth capability, leaf color, flowering time and pest

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17

Monteiro, Mariza, Beatriz Appezzato-da-Glória, Maria José Valarini, Carlos Alberto de Oliveira, and Maria Lucia Carneiro Vieira. "Plant regeneration from proroplasts of alfalfa (Medicago sativa) via somatic embryogenesis." Scientia Agricola 60, no. 4 (2003): 683–89. http://dx.doi.org/10.1590/s0103-90162003000400012.

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Alfalfa is one of the most frequently studied species from the production of tissue culture-derived embryos point of view. In this study, five alfalfa cultivars were analyzed with reference to their ability to regenerate plants from protoplast cultures via somatic embryogenesis. Plant regeneration from leaf-derived protoplasts isolated from the cultivar Rangelander was achieved using a protocol defined for alfalfa cell suspension-derived embryogenesis. Because of its high efficiency, this procedure is recommended for protoplast electroporation-mediated genetic transformation of alfalfa.

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18

Zhang, Zhiqiang, Qi Chen, Yao Tan, et al. "Combined Transcriptome and Metabolome Analysis of Alfalfa Response to Thrips Infection." Genes 12, no. 12 (2021): 1967. http://dx.doi.org/10.3390/genes12121967.

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Thrips (Thysanoptera: Thripidae) is a major insect pest for alfalfa which can result in decreased plant nutrients, low yields, and even plant death. To identify the differentially expressed genes and metabolites in response to thrips in alfalfa, a combination of metabolomics and transcriptomics was employed using alfalfa (Caoyuan No. 2) with and without thrips infestation. The results showed that the flavonoid biosynthesis and isoflavonoid biosynthesis pathways were the most significantly enriched pathways in response to thrips infection, as shown by the combined transcriptome and metabolome a

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19

NANU, Ștefan, Reta DRĂGHICI, Cristina BÎRSOGHE, Milica DIMA, Florentina NETCU, and Cornel NETCU. "THE BEHAVIOR OF MAIZE IN SANDY SOIL CONDITIONS DEPENDING ON THE PRECEDING PLANT IN THE ROTATION." "Annals of the University of Craiova - Agriculture Montanology Cadastre Series " 54, no. 1 (2025): 199–208. https://doi.org/10.52846/aamc.v54i1.1559.

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The aim of this study was to monitor the development of the maize plant depending on the preceding plant (rye; alfalfa for forage), with the objective of promoting crop rotation with alfalfa jumping plots within the agricultural system practiced on sandy soils. The results obtained showed that alfalfa incorporated into the soil after five years had a positive effect on soil fertility and implicitly on the behavior and productivity of maize. Thus, the content of organic matter, left in the soil after incorporating alfalfa, was 4.3 times higher than that recorded in the soil with the preceding p

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20

Moyer, J. R., R. W. Richards, and G. B. Schaalje. "Effect of plant density and herbicide application on alfalfa seed and weed yields." Canadian Journal of Plant Science 71, no. 2 (1991): 481–89. http://dx.doi.org/10.4141/cjps91-065.

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Alfalfa was seeded in row spacings of 36, 72 and 108 cm and at broadcast seeding rates of 0.33, 1.0 and 3.0 kg ha−1 on irrigated land at Tilley (1983) and Lethbridge (1984), Alberta to determine the effect of plant density on weed growth and alfalfa seed yield. During the seed-producing years at each location, herbicide treatments were overlaid on seeding treatments in a split-block arrangement to assess the joint effect of herbicides and plant density on alfalfa seed yield. Hexazinone was the main herbicide used for weed control. Alfalfa seed and weeds were harvested for 5 yr following alfalf

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21

Mirab-balou, Majid, and Mohammad Khanjani. "Harmful Hemiptera of Lygus Genus (Miridae, Hemiptera) On Alfalfa (Medicago Sativa L.) In Hamedan Province (Western Iran)." Journal of Plant Protection Research 48, no. 3 (2008): 313–22. http://dx.doi.org/10.2478/v10045-008-0040-7.

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Harmful Hemiptera ofLygus Genus(Miridae, Hemiptera) On Alfalfa (Medicago SativaL.) In Hamedan Province (Western Iran)The research on the occurrence of herbivorous heteroptera ofLygusgenus on alfalfa (Medicago sativaL.) was carried out over 2005-2006 in the Hamedan province (Western Iran). The analysis of the faunistic material collected from Hemiptera showed the occurrence of 4 species where dominant Heteroptera were represented by:Lygus rugulipennisPoppius,L. pratensisL.,L. gemellatusH.-S. andL. punctatusZ. The maximum abundance of these species coincided with full flowering alfalfa. AmongLyg

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22

Small, Ernest. "Adaptations to herbivory in alfalfa (Medicago sativa)." Canadian Journal of Botany 74, no. 6 (1996): 807–22. http://dx.doi.org/10.1139/b96-102.

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Alfalfa (Medicago sativa L.) possesses numerous adaptations to herbivores. As with other wild plants, general chemical defences (notably medicagenic acid in alfalfa) and general anti-insect structures (notably trichomes) provide some protection against a wide spectrum of polyphagous insects. Several morphological adaptations protect alfalfa against specialized insect feeders, especially those that consume the seeds. Alfalfa has been disruptively selected by man to possess morphological adaptations and tolerance for two contrasting classes of herbivory: continuous grazing by livestock and inter

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23

Zhang, Lili, and Yanzhong Li. "Occurrence and Nutrition Indicators of Alfalfa with Leptosphaerulina in Chifeng, Inner Mongolia." Agriculture 12, no. 9 (2022): 1465. http://dx.doi.org/10.3390/agriculture12091465.

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Alfalfa Leptosphaerulina leaf spot is a common disease of alfalfa, while its effect on alfalfa quality has not been reported. The present study aimed to investigate the alfalfa Leptosphaerulina leaf spot in Chifeng City, Inner Mongolia, China and determine the quality of alfalfa plants and leaves with different scales. The incidence and disease index of nine alfalfa cultivars ranged from 12.1% to 59.8% and 10.0 to 51.0, respectively. The incidence of the Optimus cultivar and the disease index of the WL168 cultivar were significantly higher than those of the other cultivars. Therefore, differen

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24

Ding, Ke Qiang. "Phytoremediation of Benzo[a]Pyrene-Contaminated Soil by Alfalfa (Medicago sativa L.)." Advanced Materials Research 518-523 (May 2012): 5559–64. http://dx.doi.org/10.4028/www.scientific.net/amr.518-523.5559.

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The roles of alfalfa(Lolium multiflorum L ) on remediation of B[a]P contaminated soil，the growth of alfalfa were studied in a pot experiment. The results showed that B[a]P content in soil decreased with culture time during 75d culture period. Alfalfa promotes this decrease. 75 days pot experiment showed that the concentration of B[a]P in soil grown alfalfa was significantly lower than that without plant grown ( P < 0. 05) .Under 1 ,10 and 100mg kg-1 B[a]P treatments, B[a]P biodegradability amounted to 69.5%, 75.2% and 79.1% respectively. While that of soil without plant growth were 47.4%，60

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25

Zhu, Lin, Zhiyong Li, Xiaoqing Zhang, et al. "Unveiling the Cold Acclimation of Alfalfa: Insights into Its Starch-Soluble Sugar Dynamic Transformation." Plants 14, no. 9 (2025): 1313. https://doi.org/10.3390/plants14091313.

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Alfalfa (Medicago sativa) is a globally distributed economic legume crop used for forage and ecological restoration. We aimed to explore the mechanisms underlying the cold acclimation observed in this species. Our results for fall plant growth showed that non-dormant alfalfa (SD) maintained a vigorous growth rate compared to that of fall-dormant alfalfa (ZD); however, the winter survival rate of ZD was higher than that of SD. Among the ZD samples, the starch content first accumulated and then decreased; the sucrose content was consumed first along with simultaneous raffinose accumulation, whic

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26

Bernier, Steve P., Laura Silo-Suh, Donald E. Woods, Dennis E. Ohman, and Pamela A. Sokol. "Comparative Analysis of Plant and Animal Models for Characterization of Burkholderia cepacia Virulence." Infection and Immunity 71, no. 9 (2003): 5306–13. http://dx.doi.org/10.1128/iai.71.9.5306-5313.2003.

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ABSTRACT A simple alfalfa model was developed as an alternative infection model for virulence studies of the Burkholderia cepacia complex. Symptoms of disease were observed in wounded alfalfa seedlings within 7 days following inoculation of 101 to 105 CFU of most strains of the B. cepacia complex. Strains from seven genomovars of the B. cepacia complex were tested for virulence in the alfalfa model, and the degree of virulence was generally similar in strains belonging to the same genomovar. Strains of Burkholderia multivorans and some strains of Burkholderia stabilis did not cause symptoms of

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27

Gao, Yakun, Yinli Bi, Shaopeng Ma, et al. "Yields of Buckwheat and Alfalfa in an Intercropping System Inoculated with Dark Septate Endophytes in a Coal Mining Subsidence Dryland Area." Agronomy 12, no. 11 (2022): 2860. http://dx.doi.org/10.3390/agronomy12112860.

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Coal mining subsidence areas in north Shaanxi province in north China are commonly low-fertility drylands, and intercropping is a popular method locally of maximizing crop yields. Inoculation with dark septate endophytes (DSE) can increase the yields of conventional crops grown in monoculture, but the effects of DSE on the growth and yield of intercropped plants are unknown. Here, a field experiment was conducted in a coal mining subsidence area on the loess plateau in 2020 and 2021. The two crops were buckwheat and alfalfa, with four treatments for each crop: sole cropping control, sole cropp

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28

Beghdadi, Abdellatif, Claude Richard, and Daniel Dostaler. "L'Aphanomyces euteiches des luzernières du Québec: isolement, morphologie et variabilité de la croissance et du pouvoir pathogène." Canadian Journal of Botany 70, no. 9 (1992): 1903–11. http://dx.doi.org/10.1139/b92-236.

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Sixteen strains of Aphanomyces euteiches were obtained from alfalfa seedlings by a baiting technique. They were found in the soil of 10 out of the 12 alfalfa fields sampled. In spite of some morphological variabililty, these strains were not taxonomically distinguishable from one another. They had different cultural characteristics (minimal, maximal, and optimal growth temperatures). Their pathogenicity was tested on alfalfa, garden pea, green bean, and garden beet. The green bean was lightly affected and a wide spectrum of pathogenicity was observed on alfalfa. Four pathogenicity groups were

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29

Schaber, B. D., W. A. Charnetski, and T. Entz. "Early and Late-Season Insecticide Applications in Seed Alfalfa: Impact on Pest Species and Yield2." Journal of Entomological Science 25, no. 4 (1990): 548–58. http://dx.doi.org/10.18474/0749-8004-25.4.548.

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Alfalfa is grown for seed on approximately 9,500 ha in Alberta, Canada. Pest insects, such as Lygus spp. and the alfalfa plant bug, Adelphocoris lineolatus (Goeze), (Heteroptera: Miridae) can reduce seed yield if they are not controlled. However, little is known of the damage caused by these pest insects during late seed formation and development. Field studies were conducted during 1983 and 1986 to determine the effect of early- and late-season applications of the insecticides trichlorfon and phosmet alone and combined on Lygus spp., alfalfa plant bug and seed yield of alfalfa. Effects were d

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Ells, James E., and Ann E. McSay. "Allelopathic Effects of Alfalfa Plant Residues on Emergence and Growth of Cucumber Seedlings." HortScience 26, no. 4 (1991): 368–70. http://dx.doi.org/10.21273/hortsci.26.4.368.

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Growth chamber tests demonstrated that alfalfa (Medicago sativa L.) residue is toxic to cucumber (Cucumis sativus L.) seed germination and seedling growth. Ground alfalfa roots at 0.5% (w/w, dry weight) inhibited germination when added to the growing medium. Alfalfa roots at 0.5% were also toxic to pregerminated cucumber seed. However, cucumber seedlings grew normally if this same medium was watered and incubated for >1 day before planting. Alfalfa particle size in media influenced cucumber performance, with the intermediate size (1 to 2 mm) being lethal to cucumbers.

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Wang, Le, Jianfeng Yang, Ruifang Jia, et al. "Infection Process of Alfalfa Root Rot Caused by Fusarium acuminatum." Agronomy 14, no. 9 (2024): 2157. http://dx.doi.org/10.3390/agronomy14092157.

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Fusarium spp. can cause root rot in alfalfa, leading to the death of the whole plant, which seriously affects the yield and quality of alfalfa. This study used a Fusarium acuminatum strain labeled with green fluorescent protein (GFP) to observe the infection process of F. acuminatum on alfalfa by confocal fluorescence microscopy. The aim of this study was to reveal the infection mechanism of alfalfa Fusarium root rot at the cellular histological level. The results showed that conidia of F. acuminatum attached to the surface of the root and germinated at one day post-inoculation, the mycelium t

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Allam, Gamalat, Solihu K. Sakariyahu, Tim McDowell, et al. "miR156 Is a Negative Regulator of Aluminum Response in Medicago sativa." Plants 14, no. 6 (2025): 958. https://doi.org/10.3390/plants14060958.

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Aluminum (Al) toxicity is a serious environmental constraint facing crop production in acidic soils, primarily due to the oxidative damage it causes to plant tissues. Alfalfa (Medicago sativa), a globally important forage crop, is highly susceptible to Al-induced stress, necessitating the development of Al-tolerant cultivars for sustainable forage production. In this study, we investigated the regulatory role of miR156 in Al stress response in alfalfa. Transcript analysis revealed significant downregulation of miR156 in alfalfa roots after 8 h of Al exposure, suggesting a negative role for miR

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STAVARACHE, Mihai, Costel SAMUIL, Constantin I. POPOVICI, Doina TARCĂU, and Vasile VÂNTU. "The Productivity and Quality of Alfalfa (Medicago sativa L.) in Romanian Forest Steppe." Notulae Botanicae Horti Agrobotanici Cluj-Napoca 43, no. 1 (2015): 179–85. http://dx.doi.org/10.15835/nbha4319939.

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Alternative use of alfalfa, for various purposes, including the production of biofuels or food supplement for human alimentation, is a study topic still in its early stages of research. Studying and understanding the biology of alfalfa and the factors with a major influence on it are very important activities. The productivity and quality of alfalfa are two indicators that help determine, in addition to economic value, the way in which alfalfa can be used. Evolution of alfalfa yield and quality depends on many factors, such as the growth stage of alfalfa plants at harvesting. It was observed o

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Lyons, Tana, Dan Undersander, Randy Welch, and Derek Donnelly. "Estimating Alfalfa Yield from Plant Height." Crop, Forage & Turfgrass Management 2, no. 1 (2016): 1–3. http://dx.doi.org/10.2134/cftm2015.0203.

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Glagoleva, L. E., K. K. Polyansky, N. P. Zatsepilina, and I. P. Nesterenko. "Processed cheese using alfalfa plant complex." Cheesemaking and buttermaking 55, no. 4 (2021): 40–41. http://dx.doi.org/10.31515/2073-4018-2021-4-40-41.

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Mao, Kai, Zhu Yu, Shuai Huang, Musen Wang, and David B. Hannaway. "Effect of Storage Period on the Fermentation Profile and Bacterial Community of Silage Prepared with Alfalfa, Whole-Plant Corn and Their Mixture." Fermentation 8, no. 10 (2022): 486. http://dx.doi.org/10.3390/fermentation8100486.

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This study aimed to investigate the impact of storage time on the bacterial community and fermentation profile of silage prepared with alfalfa, whole-plant corn, and their mixture. Fresh alfalfa and whole-plant corn were chopped and combined in fresh weight ratios of 1:0 (alfalfa, control), 0.8:0.2 (M1), 0.6:0.4 (M2), and 0:1 (corn). Three silos of each treatment were analyzed after 30, 60, and 90 d of storage. With storage time, pH, acetic acid, propionic acid, butyric acid, and ammonia nitrogen levels increased in alfalfa silage (p < 0.01), whereas lactic acid level decreased (p < 0.01

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Jiang, Xu, Lili Zhang, Yajing Li, Ruicai Long, Qingchuan Yang, and Junmei Kang. "Functional Characterization of the MsFKF1 Gene Reveals Its Dual Role in Regulating the Flowering Time and Plant Height in Medicago sativa L." Plants 13, no. 5 (2024): 655. http://dx.doi.org/10.3390/plants13050655.

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Alfalfa (M. sativa), a perennial legume forage, is known for its high yield and good quality. As a long-day plant, it is sensitive to changes in the day length, which affects the flowering time and plant growth, and limits alfalfa yield. Photoperiod-mediated delayed flowering in alfalfa helps to extend the vegetative growth period and increase the yield. We isolated a blue-light phytohormone gene from the alfalfa genome that is an ortholog of soybean FKF1 and named it MsFKF1. Gene expression analyses showed that MsFKF1 responds to blue light and the circadian clock in alfalfa. We found that Ms

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Abbasi, Mohammad Reza. "Resistance to the alfalfa weevil in the Iranian collection of Medicago sativa." Tropical Grasslands-Forrajes Tropicales 8, no. 3 (2020): 263–79. http://dx.doi.org/10.17138/tgft(8)263-279.

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The Iranian collection of Medicago sativa (alfalfa, 502 accessions) was evaluated under field conditions to identify variation in resistance to the alfalfa weevil (Hypera postica Gyllenhal) between accessions over 4 years. Twenty-one accessions were identified as resistant (score 3) to semi-resistant (score 5) based on K-means cluster analysis. These materials were grouped into 10 groups by means of Duncan's Multiple Range Test. Susceptibility to alfalfa weevil was significantly correlated with some of the agro-morphological traits such as plant height (r = 0.314, P<0.01), regrowth rate (r

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Yan, Mingke, Dongming Yang, Yijun He, et al. "Alfalfa Responses to Intensive Soil Compaction: Effects on Plant and Root Growth, Phytohormones and Internal Gene Expression." Plants 13, no. 7 (2024): 953. http://dx.doi.org/10.3390/plants13070953.

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The perennial legume alfalfa (Medicago sativa L.) is of high value in providing cheap and high-nutritive forages. Due to a lack of tillage during the production period, the soil in which alfalfa grows prunes to become compacted through highly mechanized agriculture. Compaction deteriorates the soil’s structure and fertility, leading to compromised alfalfa development and productivity. However, the way alfalfa responses to different levels of soil compaction and the underlying molecular mechanism are still unclear. In this study, we systematically evaluated the effects of gradient compacted soi

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Tao, Menghuan, Yao Zhao, Tianxue Hu, et al. "Screening of Alfalfa Varieties Resistant to Phytophthora cactorum and Related Resistance Mechanism." Plants 12, no. 4 (2023): 702. http://dx.doi.org/10.3390/plants12040702.

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Alfalfa is one of the most important legume forages in the world. Root rot caused by soil-borne pathogens severely restricts the production of alfalfa. The knowledge of the interaction between alfalfa and root rot-pathogens is still lacking in China. Phytophthora cactorum was isolated from symptomatic seedlings of an alfalfa field in Nanjing with high levels of damping-off. We observed the different infection stages of P. cactorum on alfalfa, and found that the purified P. cactorum strain was aggressive in causing alfalfa seed and root rot. The infecting hyphae penetrated the epidermal cells a

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Berg, B. P., W. Majak, T. A. McAllister, et al. "Bloat in cattle grazing alfalfa cultivars selected for a low initial rate of digestion: A review." Canadian Journal of Plant Science 80, no. 3 (2000): 493–502. http://dx.doi.org/10.4141/p99-051.

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The occurrence of frothy bloat limits the practice of alfalfa grazing in spite of the availability of strains bred specifically for pasture. Bloat is a chronic condition, endemic to cattle. Prophylactics and management techniques are available to reduce its incidence but they are expensive, difficult to administer, conflict with traditional grazing management regimens and do not eliminate bloat in all circumstances. A program to breed and evaluate a bloat-reduced strain of alfalfa was initiated in 1980 to overcome some of these limitations. A review of the results of grazing and feeding trials

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Su, Jing, Bo Yao, Rong Huang, Xiaoni Liu, Zhenfen Zhang, and Yong Zhang. "Cross-Kingdom Pathogenesis of Pantoea alfalfae CQ10: Insights from Transcriptome and Proteome Analyses." Microorganisms 12, no. 11 (2024): 2197. http://dx.doi.org/10.3390/microorganisms12112197.

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In grassland agroecosystems, some plant pathogenic bacteria can cause disease in animals. These strains are known as plant and animal cross-kingdom pathogenic bacteria. In this study, we established an alfalfa root infection model and a mouse model via the gavage administration of the Pantoea alfalfae CQ10 (CQ10) bacterial suspension. It was confirmed that the CQ10 strain caused bacterial leaf blight of alfalfa. Mice inoculated with 0.4 mL of 109 cfu/mL bacterial suspension developed clinical symptoms 48 h later, such as diminished vitality, tendencies to huddle, and lack of appetite, includin

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She, Dong Li, Ming An Shao, Luis Carlos Timm, and Klaus Reichardt. "Temporal changes of an alfalfa succession and related soil physical properties on the Loess Plateau, China." Pesquisa Agropecuária Brasileira 44, no. 2 (2009): 189–96. http://dx.doi.org/10.1590/s0100-204x2009000200011.

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The objective of this work was to investigate the relationship between changes in the plant community and changes in soil physical properties and water availability, during a succession from alfalfa (Medicago sativa L.) to natural vegetation on the Loess Plateau, China. Data from a succession sere spanning 32 years were collated, and vegetative indexes were compared to changes related to soil bulk density and soil water storage. The alfalfa yield increased for approximately 7 years, then it declined and the alfalfa was replaced by a natural community dominated by Stipa bungeana that began to t

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Fan, Wenqiang, Jiaqi Dong, Yudong Nie, et al. "Alfalfa Plant Age (3 to 8 Years) Affects Soil Physicochemical Properties and Rhizosphere Microbial Communities in Saline–Alkaline Soil." Agronomy 13, no. 12 (2023): 2977. http://dx.doi.org/10.3390/agronomy13122977.

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Increasing soil salinization can severely restrict local agricultural production. Planting alfalfa is considered an effective measure to ameliorate saline–alkali soil. However, it remains unclear how alfalfa planting years affect the sustained impact on soil and rhizosphere microecology. This study analyzed the effects of alfalfa planted 3, 6, and 8 years ago on soil physicochemical properties and key soil enzyme activities and investigated the rhizosphere microbial community structure and diversity. The results indicate that cultivating alfalfa plants for six years can improve soil physicoche

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Ma, Lin, Yongchao Zhang, Hongyu Wen, Wenhui Liu, Yu Zhou, and Xuemin Wang. "Silencing of MsD14 Resulted in Enhanced Forage Biomass through Increasing Shoot Branching in Alfalfa (Medicago sativa L.)." Plants 11, no. 7 (2022): 939. http://dx.doi.org/10.3390/plants11070939.

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Branching is one of the key determinants of plant architecture that dramatically affects crop yield. As alfalfa is the most important forage crop, understanding the genetic basis of branching in this plant can facilitate breeding for a high biomass yield. In this study, we characterized the strigolactone receptor gene MsD14 in alfalfa and demonstrated that MsD14 was predominantly expressed in flowers, roots, and seedpods. Furthermore, we found that MsD14 expression could significantly respond to strigolactone in alfalfa seedlings, and its protein was located in the nucleus, cytoplasm, and cyto

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Sisi, Davod Efhami, Alinaghi Karimi, Kambiz Pourtahmasi, Hamid Reza Taghiyari, and Farhad Asadi. "The Effects of Agroforestry practices on vessel properties in Populus Nigra var. Betulifolia." IAWA Journal 31, no. 4 (2010): 481–87. http://dx.doi.org/10.1163/22941932-90000037.

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The effects of intercropping with alfalfa and initial tree spacing on vessel diameter and frequency in Populus nigra var. betulifolia are reported, on the basis of a study of fifteen trees. Material was harvested from anagroforestry trial near Karaj city, Iran. Treatments included four initial spacings between poplar trees intercropped with alfalfa as a nitrogenfixing plant, as well as one control treatment without alfalfa. Intercropping with alfalfa as well as increasing initial spacing had a positive effect on growth rate which in turn affected the diameter and frequency of the vessels. Inte

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Rocci, Katherine S., Steven J. Fonte, Joseph C. von Fischer, and M. Francesca Cotrufo. "Nitrogen Dynamics in an Established Alfalfa Field under Low Biochar Application Rates." Soil Systems 3, no. 4 (2019): 77. http://dx.doi.org/10.3390/soilsystems3040077.

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Sustainable nitrogen (N) management in agroecosystems is crucial for supporting crop production and reducing deleterious N losses. Biochar application with N-fixing legumes offers promise for increasing soil N retention and input. Strategic, low application rates (112 kg ha−1) of pine and coconut feedstock biochars were tested in an established alfalfa (Medicago sativa) field. Soil inorganic N and plant growth, N concentrations, and δ15N were monitored over a growing season to follow mineral N availability, and plant N uptake and sourcing. Microbial and gene abundance and enzyme activity were

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Dong, Linling, Yi Hua, Zhiqiang Gao, et al. "The Multiple Promoting Effects of Suaeda glauca Root Exudates on the Growth of Alfalfa under NaCl Stress." Plants 13, no. 6 (2024): 752. http://dx.doi.org/10.3390/plants13060752.

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Under abiotic stress, plant root exudates can improve plant growth performance. However, studies on the effect of root exudates on the stress resistance of another plant are insufficient. In this study, root exudates (REs) were extracted from Suaeda glauca to explore their effect on alfalfa seedlings under salt stress. The results showed that the plant height and fresh weight of alfalfa significantly increased by 47.72% and 53.39% after 7 days of RE treatment at a 0.4% NaCl concentration. Under 1.2% salt stress, REs reduced the Malondialdehyde content in alfalfa by 30.14% and increased the act

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Kassimi, Abderrahmane, and Lahcen El Watik. "Comparison of Insecticide Effect of Plant Extracts on Aphids of Watermelon and Green Alfalfa." Sustainable Agriculture Research 1, no. 2 (2012): 301. http://dx.doi.org/10.5539/sar.v1n2p301.

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<p>The watermelon and the green alfalfa are important crops in Morocco. The ripe fruit of the watermelon has a high nutritional value, rich in vitamin and mineral salts and used for medicinal purposes (kidneys and cleaning of the urinary tract). The alfalfa green is principally cultivated for livestock feed.</p> <p>A common problem in the production of watermelon and the alfalfa is the infestation by aphids. They transmit viruses of the tile to the plants. They are more likely to be a problem in the time costs. The study presents the effects of products Thyme, Oregano, Neem a

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SMALL, ERNEST. "INSECT PESTS AND THE EVOLUTION OF DEFENSIVE GLANDULAR TRICHOMES IN ALFALFA." Canadian Journal of Plant Science 65, no. 3 (1985): 589–96. http://dx.doi.org/10.4141/cjps85-081.

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Glandular trichomes can defend (Medicago species from herbivores in a variety of insect orders. Wild alfalfas with high concentrations of glandular trichomes occur in a restricted portion of the geographical range of the species (Medicago saliva L. sensu lato), especially in the Caucasus, Ukraine, and adjacent areas of the USSR. These observations suggest that this adaptation was developed to defend the alfalfa against insect pests with similar geographical distribution. That M. sativa plants with pods covered with glandular hairs tend to have larger, if fewer, seeds than plants with pods lack

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