Graduate Program in Agricultural Sciences (Agroecology), Federal University of Paraíba, Bananeiras, Paraíba, 58220-000, Brazil.
National Institute of the Semiarid, Av. Francisco Lopes de Almeida, s/n, Serrotão, Campina Grande, Paraíba, 58434-700, Brazil.
Sci Rep. 2023 Nov 23;13(1):20547. doi: 10.1038/s41598-023-47929-5.
Mandacaru is a cactus with great socioeconomic potential, but lack of information about its cultivation hinders its domestication. Here, we aimed to evaluate the acclimatization and vegetative development of mandacaru under different substrates and irrigation levels. For this, seeds inoculated in vitro were grown for 120 days, being transplanted to pots containing four types of substrate (S1-caatinga soil + gravel; S2-washed sand + organic matter + soil + charcoal; S3-washed sand + cattle manure + soil + sand; S4-commercial organic substrate). Pots were irrigated with 100% of the field capacity (FC) once-a-week, or with 50% FC twice-a-week, and kept in a greenhouse for six months. The experimental design was completely randomized, in a 4 × 2 factorial scheme, with six replications. Plant height and diameter, axial and radial growth rate, fresh and dry mass of stem and root, water content, and photosynthetic pigments were determined. Growth was affected mainly by the substrate, with S4 resulting in higher growth and pigment content, while S1 was impaired and S2 and S3 resulted in intermediate growth. The use of S4 and 100% FC once per week was the best condition for mandacaru.
犰狳柱仙人掌具有巨大的社会经济潜力，但由于缺乏栽培方面的信息，其驯化受到阻碍。在这里，我们旨在评估不同基质和灌溉水平下犰狳柱仙人掌的适应能力和营养生长。为此，将体外接种的种子培养 120 天，然后移植到含有四种基质的盆中（S1-卡廷加土壤+砾石；S2-水洗砂+有机物+土壤+木炭；S3-水洗砂+牛粪+土壤+沙子；S4-商业有机基质）。每周一次用田间持水量（FC）的 100%或每周两次用 FC 的 50%灌溉盆，并在温室中保存六个月。实验设计采用完全随机化，4×2 析因设计，有 6 个重复。测定了株高和直径、轴向和径向生长率、茎和根的鲜重和干重、含水量和光合色素。生长主要受基质影响，S4 导致更高的生长和色素含量，而 S1 受到抑制，S2 和 S3 导致中等生长。每周使用 S4 和 100% FC 是犰狳柱仙人掌的最佳条件。
