REVISTA TERRA LATINOAMERICANA <h4><span style="float: right; color: #111111; font-family: 'helvetica neue',helvetica,arial,verdana,sans-serif; font-size: 14.4px; font-style: normal; font-variant: normal; letter-spacing: normal; line-height: 18.72px; text-align: justify; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; display: inline ! important; background-color: #ffffff;">ISSN Electrónico 2395 - 8030.</span></h4> Mexican Society of Soil Science, C.A. en-US REVISTA TERRA LATINOAMERICANA 2395-8030 Editorial Committee 2024 Alejandro Rodríguez-Barba Copyright (c) 2024-01-30 2024-01-30 42 Apple Tree Rootstocks [Malus sylvestris (L.) mill. Domestic var (Borkh) Mansf.] Under Water Stress <p><span data-sheets-formula-bar-text-style="font-size:16px;color:#000000;font-weight:normal;text-decoration:none;font-family:'Times New Roman';font-style:normal;text-decoration-skip-ink:none;">In recent decades, water scarcity has increased considerably in Cuauhtémoc, Chihuahua – the most important apple-growing region of Mexico. Thus, the objective of this research is focused on evaluating growth and development responses in apple rootstocks graf ted with Golden Delicious subjected to four drought cycles, comparing them with the continuous irrigation treatment. Ten rootstocks were evaluated (B.9, M.9Nic29, G.41, G.202, G.890, G.210, G.30, M.7, MM.111 and MM.109) used in the commercial apple orchards in the area, where all the rootstocks were obtained during the 2020 growing season. The planting was carried out in 20-L pots in March 2020 and a substrate composed of compost, soil and sand was used in a ratio of 1:1:1. The recorded variables measured were moisture percentage in the soil, the leading branch growth, leaf water potential, total biomass, and ef ficient water use. The rootstocks B.9 and M.9 Nic29 showed good results in most of the variables studied. Rootstocks with good recovery of leaf water potential af ter recovery irrigation were found. These rootstocks were; B.9, M.9Nic29, MM.111 and G.210. The total biomass was statistically the same in G.30, G.41, MM.111, MM.109, G.202 and B.9. In conclusion, rootstocks tolerate a certain degree of drought and can contribute to improving water use, highlighting B.9.</span></p> Mariela Rascón-Castillo Carlos Alberto Lozano-Martínez Juan Luis Jacobo-Cuellar Maria Noemi Frias-Moreno Oscar Cruz-Álvarez Ofélia Adriana Hernández-Rodríguez Damaris Leopoldina Ojeda-Barrios Rafael Ángel Parra-Quezada Copyright (c) 2024 REVISTA TERRA LATINOAMERICANA 2024-02-01 2024-02-01 42 10.28940/terra.v42i0.1773 Ef fect of Biostimulants on Raspberry (Rubus idaeus L.) Growth, Physiology and Biochemical Quality Subjected to Water Stress <p><span data-sheets-formula-bar-text-style="font-size:16px;color:#000000;font-weight:normal;text-decoration:none;font-family:'Times New Roman';font-style:normal;text-decoration-skip-ink:none;">Currently, agricultural activity is constantly threatened by the ef fects of climate change and radical expression of environmental factors as irregular rainfall distribution responsible for water availability and deficit. These factors generate water stress in productive systems, whose negative ef fect is reflected on morphological, physiological and biochemical aspects of vegetative growth. The use of biostimulants arises as a strategy to counteract this impact, improving crop ef ficiency in the use of resources and generating responses, as metabolite production, among other substances that mitigate the ef fects of oxidative stress. In this context, waxes, hydrogen peroxide (H2O2), salicylic acid (SA) and ALGAENZIMSMR were used on raspberry plants subjected to moderate water stress (-0. 8 MPa) to evaluate the fruit response in aspects of vegetative growth, physiological and biochemical quality. For the establishment, a completely randomized design was used with 5 treatments: Green Cover as 5 mL L-1, H2O2 10-4 M, salicylic acid 0.27 mM, ALGAENZIMSMR 7.5 mL L-1 and the control with 50% recovery of the transpired volume as well as water potential similar to the rest of plants and 4 replicates. The results showed that waxes, SA and algal extract increased the photosynthetic rate; the four treatments increased root length; waxes increased root height; and H2O2 increased root biomass. Compared to the control, higher levels of vitamin C and anthocyanins were produced in fruits – a very important aspect due to the functionality of these compounds in human health. Therefore, the use of these biostimulants are a very useful tool for crop management in environments with water restriction.</span></p> Gerardo Anastacio-Angel José Antonio González-Fuentes Alejandro Zermeño-González Armando Robledo-Olivo Eduardo Alberto Lara-Reimers Fidel Maximiano Peña-Ramos Copyright (c) 2024 REVISTA TERRA LATINOAMERICANA 2024-02-01 2024-02-01 42 10.28940/terra.v42i0.1772 Richness and Abundance of Soil Seed Bank in Dif ferent Agroecosystems in Central Veracruz, Mexico <p>The soil seed bank is key to plant succession. However, agricultural activities have had a great impact on the vegetation and its composition. The aim was to determine the soil seed bank in dif ferent grazing agroecosystems in the central part of Veracruz state, Mexico. Richness, abundance, diversity, equity, dominance and similarity of the species were quantified and compared among four agroecosystems (silvopastoral, pasture-trees, traditional grazing, and Acahual or secondary vegetation) in Veracruz, Mexico during the year 2017. Samples were collected. of soil at two depths (0-5, &gt; 5-10 cm). A statistical dif ference was found in the seed bank (P &lt; 0.05) in silvopastoral at both depths, 0-5 (H’ = 2.13) and 5-10 (H’ = 1.86). Equity and dominance were higher for this agroecosystem (0.86) and for Acahual (0.58) with statistical dif ferences (P &lt; 0.05). No statistical dif ferences were found at sites between depths (P &gt; 0.05). Similarity was greater than 50% at all sites and increased with soil depth. The evidence suggests that the greatest diversity of the seed bank was in silvopastoral from 0 to 5 cm deep. The seed bank has potential for the restoration of vegetation, mainly herbaceous, and can promote the development of shrubs and trees, despite the management of cattle ranching sites.</p> Arturo Pérez-Vázquez Carlos Nahin Castro-Jose Ana Lid del Angel-Pérez Mónica de la Cruz Vargas-Mendoza Copyright (c) 2024 REVISTA TERRA LATINOAMERICANA 2024-02-01 2024-02-01 42 10.28940/terra.v42i0.1677 Impact of Humic Acids and Chitosan on the Ionic Composition of the Soil Solution and the Nutritional Content of Cabbage (Brassica oleracea L.) Under Greenhouse <p><span data-sheets-formula-bar-text-style="font-size:16px;color:#000000;font-weight:normal;text-decoration:none;font-family:'Times New Roman';font-style:normal;text-decoration-skip-ink:none;">Soil solution (SS) constitutes the volume from which plant roots extract dissolved nutrients. Despite its importance, the impact of its composition due to the application of organic amendments has been relatively little studied. The objective of this research was to study the impact of humic acids (HA) and chitosan (Cs) on the concentration of minerals in the SS, as well as their ef fect on the yield of the cabbage crop (Brassica oleracea L.). Under greenhouse conditions with calcareous soil, two doses of HA were applied (200 and 500 kg ha-1), as well as 50 and 150 kg ha-1 of Cs in a targeted manner. From the SS, 22 samples were taken non-destructively from the root zone once a week. The results of mineral content in the soil solution and mineral content on the biomass did not present significant dierences, however, it was noted that the Cs50 treatment stimulated 41% higher plant biomass than the control (P ≤ 0.5, Tukey). It is concluded that Cs and HA do not significantly impact the ionic content of the SS or the mineral content of the biomass, although they do stimulate the yield. </span></p> Jorge Enrique Canales-Almendares Adalberto Benavides-Mendoza Hortensia Ortega-Ortiz Antonio Juárez-Maldonado Nazario Francisco-Francisco Copyright (c) 2024 REVISTA TERRA LATINOAMERICANA 2024-02-01 2024-02-01 42 10.28940/terra.v42i0.1785