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Journal : AGROMIX

Efek subletal campuran ekstrak daun srikaya (Annona squamosa L.) dan rimpang kunyit (Curcuma domestica Val.) terhadap larva Spodoptera litura F. Ramadhan Taufika; Siti Sumarmi; Setyo Andi Nugroho

Publisher : Fakultas Pertanian Universitas Yudharta Pasuruan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (632.008 KB) | DOI: 10.35891/agx.v11i1.1901

Abstract

Spodoptera litura (Lepidoptera: Noctuidae) larvae are polyphagous insects whose populations cause damage to various types of plantations, horticulture, and food so that control efforts need to be done. One way to control the environment of environmentally friendly S. litura larvae is to use a plant-based insecticide, a mixture of A. squamosa leaf extract and C. domestica rhizome (test extract appendix). The purpose of this study was to determine the subletal effect of the test extract mixture on S. litura larvae, namely the duration of larvae and pupae stage, pupae weight, morphology and imago viability, and the ability of female imago to lay eggs to produce offspring. The test was carried out by the method of feed dip into the test extract mixture. Data on pupae weight were analyzed with ANOVA, followed by Duncan's further test with a 5% confidence level using SPSS 21 program. The results showed that the test extract mixture extended the stages of larvae and pupae, reduced pupa weight, imago wings did not develop fully, reduced imago size, and did not imago able to produce eggs. The results of this study could then be further tested on a greenhouse scale and photochemical analysis of a test extract mixture to determine bioactive compounds that act as plant-based insecticides.
Pengaruh perbedaan varietas dan zat pengatur tumbuh terhadap pertumbuhan dan perkembangan bawang merah (Allium ascalonicum L.) Edi Siswadi; Nikmatul Choiriyah; Rindha Rentina Darah Pertami; Setyo Andi Nugroho; Tri Rini Kusparwanti; Vega Kartika Sari

Publisher : Fakultas Pertanian Universitas Yudharta Pasuruan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35891/agx.v13i2.3032

Abstract

Introduction: Shallots are a horticultural product needed by the Indonesian people, the production of shallots has decreased by 16.54%. The decline in production in 2018 was caused by extreme weather in the first quarter which resulted in a significant decrease in production. The purpose of the study was to determine the interaction between the use of varieties and the administration of ZPT at various concentrations on the growth and development of shallot plants. Methods: The experimental design used a randomized block design (RBD) with 2 factors, namely, the onion variety factor (V1: Bauji variety and V2: Blue Lancor variety) and the concentration of PGR (BAP and GA3) consisting of Z0: control (without PGR), Z1: BAP 50 ppm, Z2: GA3 150 ppm, Z3: BAP 50 ppm + GA3 150 ppm. Results: The results showed that the use of various varieties and concentrations of PGR did not affect the vegetative growth of Shallots. The use of various varieties has a significantly different effect on the generative development of shallot plants. The use of ZPT concentrations did not affect the generative development of plants. Two varieties, namely Bauji and Biru Lancor, were unable to influence the growth and development of shallots in the vegetative and generative phases because of the genetic characteristics of the plants whose function was to characterize each variety. Apart from genetic factors, this is thought to be caused by the degree of suitability of the variety to its environment. Conclusion: The Bauji variety is more suitable to be planted in the lowlands of Antirogo than the Blue Lancor variety.