Banana has an important purpose as the source of vitamins, minerals, and other substances in supporting nutritional adequacy. However, there is an obstacle in the supply chain of banana from producers to consumers with prime quality because of the nature of banana which is perishable. Therefore, it is necessary to implement any mean to delay the ripening of banana so that the process can be inhibited and the quality of banana maintained, among which is the fruit skin surface coating technology. The aim of this study was to determine the appropriate material and concentration of botanical hydrocolloid to delay ripening of bananas. This research was conducted in November to December 2014 in the Agronomy Laboratory of University of Mercu Buana Yogyakarta. The research is a single factor experiment arranged in a completely randomized design with three replications. The treatments tested were both hydrocolloid material of seaweed (Euchema spinosum) concentration of 1.5%, 2%, 2.5% and grass jelly (Stephania hernandifolia) with concentration of 2.5%, 5%, 7.5%. The result showed that based on either the percentage of fruit weight loss, fruit skin discoloration, hardness (texture), or total dissolved solids, the grass jelly hydrocolloid with the concentration of 7.5% is the best application in delaying the ripening of banana. The coating of banana with grass jelly hydrocolloid concentration of 7,5% is capable of inhibiting ripening of bananas for 11 days.

Maize is an important commodity in Indonesia and is vulnerable to maize weevil (Sitophilus zeamais) during storage which can cause a 100% yield loss. Chasew Nut Shell Liquid (CNSL) is a botanical pesticide able to control S. zeamais. Increasing CNSL efficiency and effectiveness requires additional adjuvants, such as solvents and dyes. Natural dyes addition is intended to provide seed markers. This study aimed to determine the best CNSL and natural dye formulation to control maize weevil and maintain maize seeds quality during storage. The research was conducted from August to October 2018 at the Agronomy Laboratory, Faculty of Agroindustry, Yogyakarta Mercu Buana University. The research was a single factor consisted of seven treatments with four replications arranged in a completely randomized design (CRD). Treatments were combinations of CNSL concentrations with the addition of natural dyes from suji leaf and teak leaves with one untreated control. The results of the research showed that CNSL as a seed treatment botanical pesticide could cause mortality and suppress S. zeamais populations and maintain the quality of maize seeds during storage for 12 weeks. Treatments with 20% CNSL formulation concentration and the addition of natural dyes both leaf pleomele or teak leaves could cause higher mortality and push down more populations and also could better maintain seed quality than 10 and 0% CNSL formulation concentrations.

Quality spawns are an important factor to support the success of button mushroom cultivation. The quality of mushroom spawn is inuenced by the nutritional composition of the media. The purpose of this study was to determine the best media for the growth of F0 and F1 button mushroom. The research was carried out in March-May 2021 at the Biology Laboratory, Faculty of Agroindustry, University of Mercu Buana Yogyakarta. The study consisted of 2 series of experiments. This study consisted of 2 series of experiments. The rst experiment was to test the growth quality of F0 champignon on 3 types media, that is potato dextrose agar (PDA),mung been sprout extract media, and white sweet potato media. The second experiment tested the growth quality of F1 button mushroom grown on three types of media, that is corn, barley and sorghum. Both experiment were single factor trials arranged in a completely randomized design (CRD) with three replications, and each replication consisted of 5 units. The results showed that the growth of F0 button mushroom grown on PDA media and mung bean sprout extract was better than white sweet potato extract media. For the growth of F1 button mushroom, the best media was corn, the second was sorghum and the third was barley.

Red guava has many advantages, so it is the right choice as a mainstay commodity in agricultural development with a creative approach to agribusiness innovation. The purpose of this study was to analyze the socio-economic influence of guava farm income and to analyze the income of guava farm in the yard. To analyze the influence of socio-economic factors used multiple linear regression analysis. The results showed that socio-economic factors including family dependents (X1), capital (X2), land area (X3), experience (X4) affect the income of guava farming, while the age factor does not affect the income of guava farming. By using the income formula obtained by the average net income of Mr. June farm  amounted to Rp. 4,069,683/month.