Faculty Of Agriculture Research Articles

Effect of Auxin and Cytokinin on Orchid Subculture Resulting from Coelogyne Crosses

<p>The black orchid or Coelogyne is one of the native orchids of Kalimantan, widely cultivated in Indonesia. Several species of Coelogyne orchids have been crossed to obtain new superior-quality plants. Modifying the media, such as giving PGR, is necessary for good plant multiplication results. This research was conducted by changing MS growing media with ZPT BA and NAA. This experiment aimed to determine the effect of ZPT BA and NAA on the growth of orchid subcultures from a cross between<em> Coelogyne pandhurata </em>and<em> Coelogyne rumphii</em>. The study used a completely randomized design (RAL) with 2 factors, namely ZPT BA and NAA, each having a concentration of 0 ppm, 0.2 ppm; 0.4 ppm, and 0.6 ppm with 16 treatment combinations and 4 replications. They were implemented at the Laboratory Plant Physiology and Biotechnology, Faculty of Agriculture, UNS Surakarta, from November 2020 to March 2021. The variables observed included the number of shoots, plant length, plant weight, number of leaves, number of roots, root length, when roots appeared, and when shoots appeared. The results showed that BA 0.6 ppm gives the best output on the growth of the number of shoots, and NAA concentration of 0,2 ppm gives the best results on the variable number of roots. The combination of BA 0.6 ppm and NAA 0.2 ppm gave the best results on plant weight growth.</p>

Peningkatan Hasil Tanaman Okra (Abelmoschus esculentus (l.) moench) dengan Pemberian ZPT Auksin dan Pupuk Kandang Ayam

The study was conducted in the experimental field of the Faculty of Agriculture, Asahan University, Jalan Jendral Ahmad Yani, Kisaran, Asahan Regency from March until May 2021. The study aims to the find out the increase in yield of okra (Abelmoschus esculentus (L.) Moench) by giving auxin and chicken manure. This study used randomized complete block design with two factors: (1) Auxin (Z) with 3 levels: Z0 = 0 ppm, Z1 = 100 ppm, Z2 = 200, (2) Chicken manure (A) with 3 levels: A0 = 0 kg/polybag, A1 = 1 kg/polybag, A2 = 2 kg/polybag. Observation parameters were harvesting age, fruit length, fruit diameter, fruit weight. The result showed that the application of Auxin did not show any significant effect on harvesting age, fruit length, fruit diameter, fruit weight. Application cow manure showed any significant effect on harvesting age, fruit length, fruit diameter, fruit weight, the best treatment is A2 = 2 kg/polybag. Interaction of the application of auxin with chicken manure did not show any significant effect on all observation parameters.

Yield and yield components of some advanced Camelina (Camelina sativa L. CRANTZ) genotypes in Bolu ecological conditions

The negative effects of global warming are increasing worldwide and this increase is expected to continue. The camelina plant, which can be grown in marginal areas, stands out among other oilseed plants because it is drought-resistant and less costly. In the research, seeds belonging to 8 camelina genotypes, which were prominent in terms of oil rate, seed and oil yield, were used in the trial established in Bolu province, out of a total of 52 genotypes obtained from the seed bank of the United States Department of Agriculture, Agricultural Research Service and Germany. The study was conducted according to the Randomized Complete Block Design in Bolu Abant İzzet Baysal University, Faculty of Agriculture, Research and Application Field in the 2021-2022 production season. In the trait, each plot consisted of six rows with a row length of 3 m, a row spacing of 20 cm, and in row of 5 cm, with three replications. According to the research results; plant height 66.33-71.00 cm, number of branches 3.17-5.07 number plant-1, 1000 seed weight 1.10-1.24 g, seed yield 1095.4-1436.6 kg ha-1, oil content 36.63-40.37%, protein content 23.65-27.22%, oil yield 408.3-559.8 kg ha-1 and protein yield 279.0-391.3 kg ha-1. It was found that values between. According to the results obtained from the study, the K52 genotype in terms of seed yield, the K11 genotype in terms of oil rate and the K52 genotype in terms of protein rate came to the fore.

Pengaruh Tinggi Muka Air Tanah Gambut terhadap Evolusi Gas CO2

This study aims to determine the effect of the groundwater level on the evolution of CO2 in peat soils if the groundwater table is lowered from a depth of 40 cm (PP No. 57 of 2016 concerning protection and management of peat ecosystems) to a depth of 60 cm. This study was conducted in a greenhouse and Laboratory of Physics, Chemistry and Biology Department of Soil, Agriculture Faculty, ULM. This study was began in October 2021 and continued until February 2022. The research method used was a factorial Completely Randomized Design (CRD) with four replications. The factors tested were the water table of the peat at a depth of 0 cm just above the soil surface (T1), 20 cm below the soil surface (T2), 40 cm below the soil surface (T3), and 60 cm below the soil surface (T4). The results of this study showed that the CO2 evolution of peat soil during incubation for 1, 2, 3, 7, 14, 21, and 28 days at a depth of 20 cm was not significantly different from a depth of 40 cm and 60 cm, but significantly different when the groundwater level was right at the surface soil. The CO2 evolution of peat soils at groundwater levels at the soil surface was lower than water levels 20, 40, and 60 cm below the ground.

Stomatal density, type and their relationships with leaf morphological traits in Vitis vinifera L. varieties

This study was carried out to determine the relationships between stomatal density and type and some leaf morphological traits in 10 grapevine varieties (Vitis vinifera L.). The study was performed during the vegetation period of 2022-2023 in the vineyards of the Research Station for Viticulture of Ankara University Faculty of Agriculture in Kalecik-Ankara. ‘Lival’, ‘Tekirdağ Seedless’, ‘Beauty Seedless’, ‘Michele Palieri’, ‘Cabernet Sauvignon’, ‘Narince’, ‘Syrah’, ‘Kalecik Karası’, ‘Alphonse Lavallée’ and ‘Hasandede’ varieties, grafted on 5BB rootstock, were evaluated as experimental materials in the study. The results revealed that there have been significant variations among varieties in terms of stomatal density, distribution of stomatal types, the proportion of trichomes, and leaf thickness. In general, stomatal density ranged from 168.17 to 268.27 stomata mm-2 in the varieties. The presence of the three different stomatal types (same level, raised above, and sunken) was detected by SEM images. The percentage of stomatal types varied between 39-59 for the same level, 25-42 for the raised above and 10-26 for the sunken. The percentage of the same level stomatal type was found to be higher than the other two types in all varieties. In addition, the same level stomatal type exhibited negative correlations with the raised above and the sunken stomatal types. In terms of leaf characteristics, the proportion of trichomes showed a negatively significant correlation (r = -0.309; p<0.01) with stomatal density. However, the relationship between leaf thickness and stomatal density was not significant.

Korelasi antar Karakter Hasil Lima Varietas Tanaman Kacang Panjang (Vigna sinensis) di Lingkungan Organik

This study aims to determine the correlation between the yield characteristics of the yard long bean yield, and the superiority of one of the varieties in an organic environment. This research was conducted at the Integrated Field Laboratory and Seed and Plant Breeding Laboratory, Faculty of Agriculture, University of Lampung in July 2021 – November 2021. This experiment was arranged in a Completely Randomized Design (CRD) with 3 replications and then continued with data analysis in the form of linear analysis, analysis of diversity , and significance test. The observed variables included flowering age, pod color, pod harvesting age, pod length, pod diameter, number of seeds per pod, sugar content, number of productive branches, number of good pods, total number of seeds, and distance between locules. The results showed that the pod length and the number of seeds per pod (r = 0.66). Total pod weight was positively correlated with the number of productive branches (r = 0.83), the number of good pods (r = 0.96), and the total number of pods (r = 0.96). The number of productive branches correlated positively with the number of good pods (r = 0.87) and the total number of pods (r = 0.86). The number of good pods variable has a positive correlation with the total number of pods (r = 0.98). The Cantonese Tavi variety has an advantage in the number of good pods produced in an organic environment. Keywords: Correlation, Organic Environment.

РОЗРОБКА ПРОГРАМИ РОЗВИТКУ АГРАРНОГО ФАКУЛЬТЕТУ

The article considers the relevance of the strategic development of educational institutions. The essence of the concept of «agrarian faculty development program» as a means of directing and integrating the team's efforts to increase the efficiency of the work of the structural division and the university as a whole, which is developed on the basis of an in-depth analysis of the state of the educational system and determines the main ways of its modernization, is defined; a generalized long-term plan for the implementation of the mission and the achievement of the goal by the faculty community. It is emphasized that strategic management is a type of management of an educational institution, according to which: fulfillment of the formulated mission and set goals is guaranteed; successful operation is ensured in the long term; flexible response to changes in the internal environment is ensured; the organization is able to respond to the challenge of the external environment; human potential is perceived as the main value of the organization; the organization's activities are focused on satisfying consumer requests. It is noted that the strategic management of the organization is designed to ensure not only its functioning, but also its development in the future. This approach caused the direction of all management actions to update the educational system, the joint activities of all participants in the educational process to achieve the set goals. It is emphasized that the program is based on values embodied in the life of the faculty: humanism, quality, national consciousness, professionalism, creativity. It was emphasized that openness, inclusiveness, the right to criticism and attention to criticism are the main principles of the faculty's activity. It is emphasized that the implementation of the agricultural faculty development program took place in two stages: defining the mission of the faculty; development of a development program.

Phenology and Climate Indices of Maize Hybrids under North Western Himalayan Region of Temperate Kashmir

In the Kharif season of 2021, a field experiment was conducted at the crop research farm of the Division of Agronomy, Faculty of Agriculture, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir. The primary objective of the study was to investigate the phenology of maize hybrids in relation to agrometeorological indices. The experimental design included two factors: Factor A, representing different irrigation regimes at various growth stages (I1 to I6), and Factor B, consisting of two maize hybrid varieties (Shalimar Hybrid-2 and Shalimar Hybrid-3). The irrigation treatments ranged from early vegetation stage to rainfed conditions. The experiment followed a split plot design with three replications. Results indicated that the treatment I5 (Irrigation at IW/CPE ratio of 0.8) and Shalimar Hybrid-3 exhibited the highest values for key agrometeorological indices, including GDD, HTU, PTU, and HYTU. These findings provide valuable insights into optimizing irrigation practices and selecting suitable maize hybrids for enhanced phenological performance.

Pengaruh Pupuk Organik Cair Kulit Pisang Kepok pada Pertumbuhan dan Produksi Okra (Abelmoschus esculentus)

The content in banana peels, namely protein, calcium, phosphorus, magnesium, sodium, and sulfur, has the potential to be used as liquid organic fertilizer (LOF). This study aims to evaluate the application of various doses of LOF derived from kepok banana peel on the growth and production of okra plants. The experiment was carried out at the Experimental Garden of the Faculty of Agriculture, University of Muhammadiyah Jakarta, from March to July 2021. The experiment used a Randomized Group Design (RAK), with six treatments and four repeats. The treatments are P0 (inorganic fertilizer as a control), P1 (50 mL LOF), P2 (75 mL LOF), P3 (100 mL LOF), P4 (125 mL LOF), and P5 (150 mL LOF). The results showed that the application of kepok banana peel LOF did not affect the growth and production of okra plants compared to the application of inorganic fertilizers. The cause is the low nutrient content in LOF banana peel of kepok. Keywords: as liquid organic fertilizer, inorganic fertilizer, kepok, liquid organic fertilizer, okra

Biocontrol potential of rhizospheric fungi against Rigidoporus microporus, the causal agent of white root rot disease in tea plants

White root rot disease (WRD), caused by Rigidoporus microporus, poses a serious threat to various tropical trees, resulting in substantial crop damage and even plant death. However, there is still a lack of information regarding WRD in tea plants. Due to soil-borne in nature, synthetic fungicide is not recommended to control WRD. Therefore, biocontrol using natural microorganisms found in the tea's rhizosphere has been explored as a potential solution. This study aimed to identify rhizospheric fungi of tea plants with antagonistic properties that can be used as a biocontrol agent against R. microporus. The study involved a field survey and laboratory works had been conducted in a tea plantation at Rancabali, West Java and the Phytopathology Laboratory, Faculty of Agriculture, Universitas Padjadjaran from March to October 2021. The disease incidence and severity were assessed in three blocks of land representing different topographic conditions of the plantation while antagonism tests were conducted using the completely randomized design and dual culture method. The results showed that the highest occurrence of WRD was in the central part of the hill with the disease incidence and severity of 70 and 50%, respectively. Thirteen fungal isolates were obtained from the rhizosphere of tea plants, all of which were found to inhibit the growth of R. microporus. These isolates belonged to the genera of Trichoderma, Gliocladium, Paecilomyces, Penicillium, Aureobasidium, Acremonium and Rhizopus. The considerable inhibition of R. microporus colony growth was performed by the isolates of Aureobasidium sp. (51.23%), Rhizopus sp. (50%), and Trichoderma sp. (43.96%). The results suggested that rhizospheric fungi of tea plants have the potential as biocontrol agents against R. microporus.

Maximizing cocoa (Theobroma cacao L.) seedling growth through liquid coconut shell smoke in Ultisols soil

The crucial aspect of cocoa cultivation is ensuring the availability of seedlings with robust growth. Ultisols, a type of soil with potential for cocoa plant propagation, necessitate materials to enhance fertility when used as a growing medium. This includes the application of liquid smoke derived from coconut shells. To further study on this aspect this research aimed to determine the role of liquid coconut shell smoke on the growth of cocoa seedlings in Ultisols soil. The research was conducted in the laboratory and greenhouse of the Faculty of Agriculture, Panca Bhakti University, Pontianak, for 90 days from July to October 2023. The research used a complete randomized block design (CRBD) with four replications. The treatment concentrations of liquid coconut shell smoke (%) consisted of six levels: 0.00, 0.25, 0.50, 0.75, 1.00, and 1.25%. Each replication consisted of three cocoa plant seedling samples, resulting in a total of 72 plants for the entire research unit. The observed parameters included plant height increase (cm), the increase in the number of leaves (leaves), and the increase in stem diameter (mm). The research results found a very significant influence on all observed parameters. The treatment of liquid coconut shell smoke at a concentration of 0.75% yielded the highest results in terms of seedling height increase (29.09 cm), the number of leaves (14.08 leaves), and stem diameter (9.87 mm) compared to the control. This research finding shows that a concentration of 0.75% liquid coconut shell smoke can maximize the growth of cocoa seedlings in Ultisols soil through soil fertility improvement.

Effects of Different Mixture Ratios of Common Vetch and Triticale on Forage Yield and Silage Quality

In order to obtain high amounts and quality forage in legume grain mixtures, the mixture ratios must be adjusted well. Since grains are tillered due to their physiology, their ratios in roughage are different from the mixing ratios in planting. This is a factor that increases roughage yield and reduces crude protein rate and yield. In addition, in cases where grains are insufficient in terms of minerals in animal nutrition and are planted in mixtures with legumes, the rapid development and high yield effects of grains should be combined with the balanced nutrition potential of legumes in order to obtain better quality feed. In this study, 100% Vetch, 100% Triticale, 75% Vetch + 25% Triticale, 50% Vetch + 50% Triticale, 25% Vetch + 75% Triticale were planted in Sakarya conditions and the effect of the mixture ratios on grass yield was revealed. Additionally, silage was made from the mixtures obtained and the effect of the applied mixture ratios on silage quality was determined. Field trials of the research were carried out in the trial areas of Sakarya University of Applied Sciences, Faculty of Agriculture. In the experiment, plant height, green and dry forage yield observations were taken. At the end of the maturation period, silage was made in 2 kilogram containers from each parcel as a silage quality criterion; silage dry matter ratio, silage pH, crude protein ratio, ADF and NDF observations were taken. By calculating the physical and sensory analyzes and flieg point used to determine silage quality, the silages obtained from the mixtures were defined in detail by chemical, physical and sensory analyzes and the flieg point. In the study, the highest green forage yield, hay yield, crude protein, ADF, NDF ratio and flieg point were obtained from 100% Vetch, 100% Triticale, 100% Vetch, 100% Triticale, 100% Triticale and 50% Vetch+50% Triticale mixtures, respectively.

Molecular identification of Trichoderma sp. Margodadi isolate and its potential against Phytophthora capsici causing foot rot of black pepper

Trichoderma has the potential to suppress fungal pathogens and thus control plant diseases, including Phytophthora foot rot, which is the most devastating disease of black pepper in Lampung. Identification of a microorganism can not only rely on its morphological characteristics, but it is also necessary to identify it molecularly at the species level. This research was aimed at identifying the fungus Trichoderma sp. Margodadi isolates at the species level and to know the potential of Trichoderma sp. Margodadi isolates and their secondary metabolites to control P. capsici. This research was conducted from March to November 2021 at the Laboratory of Plant Disease, Department of Plant Protection, and the Laboratory of Agricultural Biotechnology, Faculty of Agriculture, University of Lampung. Identification of Trichoderma was done by morphological characteristics and molecular methods. The ability of Trichoderma to suppress P. capsici was tested by dual culture. The effect of secondary metabolites on the growth of P. capsici was determined in vitro at concentrations of 0% (control), 10%, 20%, 30%, and 40%. The experimental design used was a completely randomized design consisting of five treatments repeated five times. The data obtained from the test were analyzed using ANOVA, followed by the LSD test at 5%. The results of this study showed that Trichoderma sp. Margodadi isolate had a close relationship with Trichoderma asperellum and had the ability as an antagonist to inhibit the growth of P. capsici up to 47.23%, and the secondary metabolites produced could inhibit the growth of P. capsici up to 72.53% with the best concentration of 40%.

Effect of GA3 as a priming agent on the growth of shallot (Allium ascaloncium L.) seedling

This study aimed to evaluate and analyze the effect of priming using GA3 on the growth of various shallot varieties from seeds. This pot study was conducted at Exfarm, Faculty of Agriculture, Hasanuddin University from July to September 2022. The research was arranged in factorial with a randomized complete block design (RCBD) with two treatment factors. The first factor was seed priming consisting of control or no priming (S0), priming with water (S1), 25 mg L-1 GA3 (S2), 50 mg L-1 GA3 (S3) and 75 mg L-1 GA3 (S4). The second factor is the variety consisting of Tuk-Tuk (v1), Sanren F1 (v2), Lokananta (v3), and Maserati (v4). Seed performance testing is carried out by planting prime seeds in pots. Meanwhile, parameters observed included six agronomic parameters and three chlorophyll parameters. The results show that priming with GA3 at concentration of 75 mg L-1 significantly influence the plant height, number of leaves, fresh weight, chlorophyll b content, and total chlorophyll. Variety treatments recorded different responses to various parameters. The Lokananta variety recorded the highest average plant height and dry seedling weight. The Maserati variety recorded the largest average diameter of pseudo stems. Meanwhile, the interaction between GA3 at 75 mg L-1 and the Maserati variety has a significant effect on the root length of shallot seedlings. Then, the interaction between Tuk-Tuk varieties and GA3 75 mg L-1 priming gave the best effect on chlorophyll content.

The Effect of Several Types of Refugia Plants on Whitefly Populations and Production of Red Chili Varieties (Capsicum Annum L.)

The purpose of this study was to measure the effect of refugia on the whitefly population and the production of several varieties of red chili (Capsicum annum L.). This research was conducted in the experimental garden of the UTU Faculty of Agriculture, West Aceh Regency from March - June 2019. Materials used: TM 999 chili seeds, Lado F1 variety, F1 Lidia variety, NPK fertilizer, manure, Kenikir flower plants, Zinnia flowers, and polybags. Tools used: hoe, hand sprayer, camera, and stationery. This study used a 3x2 split plot design with 3 replications. The factor studied was the presence of a whitefly. As the main plot, Refugia (R) consists of three levels, namely R0 = Control, R1 = Zinnia, and R2 = Thinking. Variety (V) consists of 3 levels, namely V1 = TM 999, V2 = Lado F1, and V3 = Lidia F1. The variables observed were the calculation of whitefly population, the percentage of attack rate, and production per plot. The results showed that Refugia plants had a very significant effect on the whitefly population, percentage of pest attack rates, and production per plot. Variety has a significant effect on the percentage level of pest attacks and production per plot.

Effects of Organic and Inorganic Fertilizers on Yield and Yield Components of Barley

This study aimed to assess the impact of various organic and inorganic fertilizers on the yield and yield components of barley varieties. The research was conducted in the greenhouse of the Faculty of Agriculture of Dicle University in 2019-2020. Two barley varieties, Keçiburcu (six rows) and Önder (two rows), and 15 types of organic and inorganic fertilizers were used in this study. All organic fertilizers used in the study were applied at sowing, solid fertilizers were incorporated directly into the soil, and liquid fertilizers were diluted with water and then applied to the soil. Among the fertilizers used in this study, conventional fertilizer (1.48 g/plant) and sheep manure (1.05 g/plant) showed positive effects on grain yield and other traits. As a result, plants benefit from chemical fertilizers in a shorter period because they are absorbed and used more quickly than chemical fertilizers, which are part of traditional agriculture. In addition, organic fertilizers have a positive effect on plant development. For organic barley production, sheep manure is recommended, which yields results similar to those of conventional fertilizers.

Determination of the Effects of Different EMS Doses Applied to Seeds of Chickpea and Lentil Varieties on Some Seedling Characteristics

In this study, it was aimed to determine the effects of 11 different doses of Ethyl Methane Sulphonate (EMS) applied to the seed to create variation in the M1 generation of chickpea (Gökçe) and lentil (Şakar) genotypes during germination and seedling development periods and to determine the lethal dose that caused a 50% reduction in plant emergence rate. The research was conducted under the greenhouse and laboratory conditions of the Faculty of Agriculture of Dicle University in 2019/2020. The study was conducted according to a randomized block design with three replicates. For the M1 generation, seeds of each genotype in the elite stage were treated with EMS solution at 0 (control), 10, 20, 30, 40, 40, 50, 60, 60, 70, 70, 80, 90, and 100 mM (1000 seeds for each dose) and then sown in the greenhouse. A total of 132 tubes were sown with 30 seeds for each dose, and the effective EMS dose was determined for each genotype based on the traits examined in the developing seedlings. In the study, it was concluded that 11 different EMS doses applied to the seeds of chickpea and lentil varieties had negative effects on seedling development in the M1 generation, and increasing EMS doses from the control caused a decrease in all traits examined. With increasing EMS doses, plant emergence was observed in both chickpea and lentil up to 60 mM dose, while no germination was observed at 60 mM dose, and the dose rate varied according to species and varieties. The dose that caused a 50% decrease in the plant emergence rate in Gökçe chickpea and Şakar lentil varieties was determined as the LD50 dose. Accordingly, it was determined that the LD50 dose was 30 mM for Gökçe chickpea variety and 60 mM for Şakar lentil variety.

THE IRON OXIDE (FE2O3NPS) AND GRAPHENE OXIDE (GONPS) NANOPARTICULES PRIMING TREATMENTS ALLEVIATE THE EFFECTS OF SALINITY DURING GERMINATION OF THE SOYBEAN

Nanoparticles containing essential plant nutrients, including micronutrients, can be effective in improving germination characteristics. In the present study, the aim was to evaluate seed germination characteristics by priming application. The study was conducted at the Field Crops Laboratory, Faculty of Agriculture, Adnan Menderes University. For this study, the germination characteristics of soybean seeds were investigated in four different priming treatments (control, Fe2O3NPs, Graphene oxide, Potassium humate) in both saline and non-saline conditions. The results of the study showed that Fe2O3NPs, graphene oxide, and potassium humate had positive and significant effects under both conditions. It was also determined that saline conditions caused a decrease in the observed properties. Among these priming treatments, almost all traits, such as germination percentage (77.19%), root length (31.74 mm), and hypocotyl length (67.01 mm), were observed in the Iron oxide NPs treatment. The study revealed a significant and positive effect of priming applications on the germination percentage and the examined characteristics in both environments.

The Study of Local Commodity-Based Farming Development: Case Jujun Village, Keliling Danau District, Kerinci Regency

Orange is one of the mainstays and potential local horticultural commodities in Jambi Province and is especially cultivated in Kerinci Regency. This research will be carried out in Jujun Village, Keliling Danau District, Kerinci Regency, with the consideration that this village is an Integrated Laboratory Village of the Faculty of Agriculture, University of Jambi. The research respondents were local citrus owners and cultivators. This study aims to describe the description of local citrus farming and feasibility analysis of local citrus farming in Jujun Village, Keliling Danau District, Kerinci Regency. The analytical method used is the R/C ratio and B/C ratio, to determine the feasibility of local citrus farming.

Dormancy of Macadamia Nut Seeds (Macadamia Integrifolia) by Drying and Soaking Water

Macadamia nut seeds are orthodox seeds that result in a dormancy period, so breaking the seed dormancy period is necessary. This study aims to determine the effect of drying and water immersion on dormancy breaking and macadamia bean seed germination and which drying and water immersion had the best impact on dormancy breaking and macadamia bean seed germination. The research was conducted in the soil laboratory and screen house of the Faculty of Agriculture, Winaya Mukti University, Tanjungsari District, Sumedang Regency, from June to November 2022. The experimental design used was a simple randomized block design (RBD) with a combination of drying and soaking seeds with nine treatment combinations. Each was repeated three times, so there were 27 experimental units. A = P 40oC + PA 45oC, B = P 45oC + PA 50oC, C = P 50oC + PA 55oC, D = P 50oC + PA 45oC, E = P 40oC + PA 50oC, F = P 45oC + PA 55oC, G = P 45oC + PA 45oC, H = P 40oC + PA 55oC, I = P 50oC + PA 50oC. The results showed that drying and soaking in water treatments at different temperatures had no significant effect on seed moisture content, seed cracking percentage, germination percentage, radicle length, and plumula length.