Genetic and seasonal variation in forage quality of lucerne (Medicago sativa L.) for resilience to climate change in arid environments

Tlahig, Samir; Neji, Mohamed; Atoui, Ahlem; Seddik, Mabrouk; Dbara, Mohamed; Yahia, Hedi; Nagaz, Kamel; Najari, Sghaier; Khorchani, Touhami; Loumerem, Mohamed

doi:10.1016/j.jafr.2024.100986

Cited by 3 publications

(2 citation statements)

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“…The components of fodder quality, such as EE, CA, CP, and NDF, can be influenced by a combination of environmental conditions, plant genetics, and agricultural practices [40,41]. However, to the best of our knowledge, the impact of light intensity on the fodder quality components of hydroponically grown fodder crops has rarely been investigated.…”

Section: Discussionmentioning

confidence: 99%

Light Intensity Affects Growth and Nutrient Value of Hydroponic Barley Fodder

Yang,

Sun,

Wang

et al. 2024

Agronomy

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Light intensity significantly influences plant growth in hydroponic green fodder systems, yet research exploring the growth dynamics and nutrient accumulation in hydroponically grown barley under various light conditions has been limited. This study investigated the impact of different light intensities—0, 100, 200, and 300 μmol/m2/s—on the nutritional composition and quality of hydroponic barley fodder. Assessments were made on biomass production, physiological responses including photosynthetic parameters, and nutritional components such as essential amino acids five days post-treatment. The findings indicated that increasing light intensity boosted photosynthetic activity, expanded leaf area, enhanced root length, and promoted biomass accumulation. However, the highest intensity tested, 300 μmol/m2/s, led to significant chlorophyll degradation, increased water loss, and induced oxidative stress, adversely affecting fodder quality and reducing essential amino acids. In contrast, an intensity of 200 μmol/m2/s was identified as optimal for promoting robust barley growth through principal component analysis. This optimal setting supported vigorous growth and ensured the production of nutrient-rich, high-quality fodder, providing a basis for scaling up production efficiently. This research offers crucial insights into optimizing light conditions to maximize both the yield and nutritional quality of hydroponically grown barley fodder, presenting a significant step forward in enhancing hydroponic farming practices.

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Section: Discussionmentioning

confidence: 99%

Light Intensity Affects Growth and Nutrient Value of Hydroponic Barley Fodder

Yang,

Sun,

Wang

et al. 2024

Agronomy

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“…8). Favorable climatic conditions with adequate rainfall and moderate temperatures contribute to greater forage quality and nutritional value (Tlahig et al 2024).…”

Section: Nutritional Valuementioning

confidence: 99%

Dendrometry, production and nutritional value of Mimosa caesalpiniifolia Benth. under monocrop and silvopastoral system

Izidro,

de Mello,

Cunha

et al. 2024

Preprint

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Legumes have the potential to provide diverse ecosystem services, therefore, it is important to understand the quantitative and qualitative aspects of their development in different cropping systems. The objective of this study was to evaluate the dendrometric, productive characteristics and nutritional value of Mimosa caesalpiniifolia Benth. in monocrop and a silvopastoral system with signal grass, in Brazil. The treatments were distributed under a randomized block design and consisted of M. caesalpiniifolia monocrop system and silvopasture (signal grass + M. caesalpiniifolia). Evaluations were carried out every 56 days for two years. The data were analyzed using repeated measures over time using SAS on demand (2021) and the treatment means were compared using PDIFF with Tukey's test (P < 0.05). There was no effect of cropping systems (P > 0.05) on plant height (~ 5.2 m). The greatest values for diameter at breast height (16.32 cm), basal diameter (20.54 cm), and dry matter production per plant (36 g DM plant− 1) were observed in the silvopasture system (P < 0.05). Forage mass was higher (P < 0.05) in the monocrop system compared to silvopasture (69 and 22 kg DM ha− 1, respectively) in the first year of evaluation. Total forage accumulation was greater in the monocrop system compared to silvopasture (383 vs. 116 kg DM ha− 1 year− 1) in the first year of evaluation. The nutritional value was not influenced (p < 0.05) by the cultivation systems in the first year of evaluation, however, higher content of CP (221 g kg− 1), ADF (449 g kg− 1), and IVDMD (383 g kg− 1) were observed in the rainy season, while the highest DM content (426 g kg− 1) occurred in the dry season. M. caesalpiniifolia showed good dendrometric characteristics in the silvopasture system. The silvopasture provides greater forage production per plant of M. caesalpiniifolia and better nutritional value of the forage than the legume monocrop.

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