Morphological and physiological parameters influence the use efficiency of nitrogen and phosphorus by Eucalyptus seedlings

Kulmann, Matheus Severo de Souza; Arruda, Wagner Squizani; Vitto, Beatriz Baticini; Souza, Rodrigo Otávio Schneider de; Berghetti, Álvaro Luís Pasquetti; Tarouco, Camila Peligrinotti; Araújo, Maristela Machado; Nicoloso, Fernando Teixeira; Schumacher, Mauro Valdir; Brunetto, Gustavo

doi:10.1007/s11056-021-09864-z

Cited by 8 publications

(5 citation statements)

References 55 publications

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“…It is worth mentioning that the greater the ability to obtain resources from the root system, the greater the development and survival of seedlings in the field [ 43 ]. Plants more efficient at absorbing water and nutrients can increase photosynthetic potential, achieving higher root systems [ 44 ].…”

Section: Potential Mechanisms Of Interactionmentioning

confidence: 99%

Use of Trichoderma in the Production of Forest Seedlings

Ferreira,

Ramos,

Gatto

2024

Microorganisms

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Forest production has great relevance in the Brazilian economy, characterized by several production sectors, including the production of seedlings. With the focus on maximizing the capacity of survival, development, and adaptation of seedlings, Trichoderma is highlighted as a potentially useful genus of microorganisms for promoting growth and higher product quality. In this sense, this review aims to describe the main mechanisms of fungi action in forest seedlings’ production. The different species of the genus Trichoderma have specific mechanisms of action, and the current scenario points to more advances in the number of species. The interaction process mediated by different mechanisms of action begins in the communication with plants, from the colonization process. After the interaction, chemical dialogues allow the plant to develop better because, from colonization, the forest seedlings can maximize height and increase shoot and root development. Fungi promote solubilization and availability of nutrients to seedlings, which show numerous benefits to the development. The use of beneficial microorganisms, such as fungi of the genus Trichoderma, has become a sustainable strategy to enhance seedling development, reducing the use of agrochemicals and industrial fertilizers.

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Section: Potential Mechanisms Of Interactionmentioning

confidence: 99%

Use of Trichoderma in the Production of Forest Seedlings

Ferreira,

Ramos,

Gatto

2024

Microorganisms

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“…Root morphology can determine the utilization efficiency of the N and P of seedlings [63], which may reflect the growth potential of seedlings better than growth traits [11]. The different treatments had significant effects on the root system of E. urograndis seedlings.…”

Section: Effects Of Different Soaking Root Fertilizer Treatments On R...mentioning

confidence: 99%

The Effect of Soaking Root Fertilizer on Promoting the Seedling Early Growth and Root Development of Eucalyptus urograndis

Zhang,

Yang,

Ouyang

et al. 2023

Forests

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We examined the feasibility of applying soaking root fertilizer to Eucalyptus urograndis seedlings by dipping the roots, and the effectiveness of the method for improving the overall growth quality of the seedlings by affecting root growth. The seedlings of E. urograndis in the Southern National Forest Seedling Demonstration Base in China were dipped with seven kinds of soaking root fertilizer formulas, while another group of clear water was set as a control. We regularly investigated the relationship between root traits and other seedling traits, and the formulas conducive to the high-quality growth of seedlings in one month and two months were screened by principal component analysis (PCA). The feasibility of applying soaking root fertilizer by dipping the roots was analyzed by comparing the difference between the formula and the control. The F2 formula had the best promoting effect on the growth and biomass of seedlings and the highest ground diameter within one month. The biomass, cumulative height growth, and average crown width were also the highest in the two months, but the decreasing growth height in F2 was also obvious, along with reduced photosynthesis and root morphology. The F8 and F4 formulas as compound fertilizers showed the potential of a high growth rate and high quality. The seedlings on which they were all applied had an excellent photosynthetic capacity and a well-developed root system. A correlation analysis showed that root traits were significantly correlated with some aboveground indices of seedlings (growth, biomass and nutrients, etc.), among which the root K concentration was very significantly correlated with photosynthetic capacity, and the root P was very significantly correlated with seedling biomass. Dipping roots mainly promoted the uptake of P and K nutrients by roots, which had a positive effect on seedling photosynthesis and the root system, and thus improved the growth increment and growth quality of seedlings. A principal component analysis showed that dipping roots significantly promoted the growth traits of seedlings, and the best-performing formula for dipping roots was F8 at one month of growth. F4 was the best choice for growth at two months. F4 showed excellent performance in all trait indices and was the only treatment where an increase in the rhizome-to-stem ratio occurred, indicating that the nutrient distribution of F4 seedlings was uniform and efficient, which compensated for the deficiency of the follow-up fertility of the quick-acting complex fertilizer. The scientific formula of soaking root fertilizer can be economically applied by dipping roots to synchronously promote early growth and quality of seedlings, which can provide a theoretical basis for the early large-scale cultivation of E. urograndis and other plants.

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“…Phosphorus (P) is an important nutrient for eucalypt plantation and plays a crucial role in the growth of Eucalyptus spp. seedlings as well as in their initial establishment in the field, favoring earlier harvesting and increasing crop yield [ 8 – 11 ]. Thus, P is vital for plant growth and its availability in the soil affects its uptake, transport, and utilization, ultimately influencing nutritional efficiency [ 5 ].…”

Section: Introductionmentioning

confidence: 99%

Silicon attenuates nutritional disorder of phosphorus in seedlings of Eucalyptus grandis × Eucalyptus urophylla

Reis,

de Paula,

de Souza Júnior

et al. 2024

BMC Plant Biol

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Background Nutritional disorders of phosphorus (P), due to deficiency or toxicity, reduce the development of Eucalyptus spp. seedlings. Phosphorus deficiency often results in stunted growth and reduced vigor, while phosphorus toxicity can lead to nutrient imbalances and decreased physiological function. These sensitivities highlight the need for precise management of P levels in cultivation practices. The use of the beneficial element silicon (Si) has shown promising results under nutritional stress; nevertheless, comprehensive studies on its effects on Eucalyptus spp. seedlings are still emerging. To further elucidate the role of Si under varying P conditions, an experiment was conducted with clonal seedlings of a hybrid Eucalyptus spp. (Eucalyptus grandis × Eucalyptus urophylla, A207) in a soilless cultivation system. Seedlings were propagated using the minicutting method in vermiculite-filled tubes, followed by treatment with a nutrient solution at three P concentrations: a deficient dose (0.1 mM), an adequate dose (1.0 mM) and an excessive dose (10 mM), with and without the addition of Si (2mM). This study assessed P and Si concentration, nutritional efficiency, oxidative metabolism, photosynthetic parameters, and dry matter production. Results Si supply increased phenolic compounds production and reduced electrolyte leakage in seedlings provided with 0.1 mM of P. On the other hand, Si favored quantum efficiency of photosystem II as well as chlorophyll a content in seedlings supplemented with 10 mM of P. In general, Si attenuates P nutritional disorder by reducing the oxidative stress, favoring the non-enzymatic antioxidant system and photosynthetic parameters in seedlings of Eucalyptus grandis × Eucalyptus urophylla. Conclusion The results of this study indicate that Eucalyptus grandis × Eucalyptus urophylla seedlings are sensitive to P deficiency and toxicity and Si has shown a beneficial effect, attenuating P nutritional disorder by reducing the oxidative stress, favoring the non-enzymatic antioxidant system and photosynthetic parameters.

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Morphological and physiological parameters influence the use efficiency of nitrogen and phosphorus by Eucalyptus seedlings

Cited by 8 publications

References 55 publications

Use of Trichoderma in the Production of Forest Seedlings

Use of Trichoderma in the Production of Forest Seedlings

The Effect of Soaking Root Fertilizer on Promoting the Seedling Early Growth and Root Development of Eucalyptus urograndis

Silicon attenuates nutritional disorder of phosphorus in seedlings of Eucalyptus grandis × Eucalyptus urophylla

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