Garuda - Garba Rujukan Digital

Article Per Year (5 Year)

p-Index From 2020 - 2025

P-Index

This Author published in this journals

All Journal Agrosains: Jurnal Penelitian Agronomi Agrotechnology Research Journal

Retno Wijayanti

Department of Agrotechnology, Faculty of Agriculture, Universitas Sebelas Maret

Author-ID : 3764481

Agriculture, Biological Sciences & Forestry

Published : 4 Documents Claim Missing Document

Claim Missing Document

Articles

Pengaruh Waktu Pemasangan Kerodong pada Buah Pisang terhadap Serangan Hama Nacoleia Octasema Aulia Anandita; Supriyadi Supriyadi; Retno Wijayanti
Agrosains : Jurnal Penelitian Agronomi Vol 21, No 2 (2019): Agrosains : Jurnal Penelitian Agronomi
Publisher : Universitas Sebelas Maret

Bagging banana fruits can be develop as a control to protect the fruits from Nacoleia octasema. The objective of this research was to determine the effect and relation of the banana fruit bagging time on N. octasema. This research was conducted in Tlogo Orchard, Delik Village, Tuntang District, Salatiga, Central Java from September-November 2018. This research used purposive sampling with 3 banana cultivars and 4 treatment. The observation variable of this research was the incidence of attacks. The results showed that there was an effect on the banana fruit bagging time against the incidence of pest attacks. The average incidence attack showed that the unbagged banana fruits had the biggest attacks. In addition, there was a positive relationship between the banana fruit bagging time and cultivars on the incidence of attacks. The older a banana bagged, the greater incidence of pest attacks. Kepok had the biggest incidence of attacks compared to the other cultivars.

Potensi Minyak Atsiri Kulit Buah Jeruk Nipis untuk Pengendalian Crocidolomia Pavonana Nidia Melati Al Anshori; Retno Wijayanti; Ato Sulistyo
Agrotechnology Research Journal Vol 1, No 2 (2017): Agrotechnology Research Journal
Publisher : Perkumpulan Agroteknologi/Agroekoteknologi Indonesia

Cabbage head caterpillar (Crocidolomia pavonana) is a major pest on Brassicaceae. Control using chemical insecticides to control this pest can resistance. When used as a lime peel essential oil is thought to be cabbage head caterpillar pest control compounds that contain monoterpene. This study is conducted in August 2016- January 2017. This study used a completely randomized design (CRD) with one factor is the concentration of essential oil. Variables measured were Larvicide, antifeedant, antioviposition, and phytotoxocity. The research results showed that essential oil of lime peel cause mortality of larvae of C. pavonana slowly. antifeedant activity due to the essential oil of less than 50%. Inhibition of egg laying was significant at concentration of 0.2% (73.3%),0.8% and 1.6% (80%). Essential oil causes necrosis of leaf less than 10%.

Potensi Abu Daun Bambu dan Kompos Jerami untuk Mengendalikan Wereng Coklat Ade Brian Nugraha; Retno Wijayanti; Subagiya Subagiya
Agrotechnology Research Journal Vol 1, No 2 (2017): Agrotechnology Research Journal
Publisher : Perkumpulan Agroteknologi/Agroekoteknologi Indonesia

This study aims to determine the effect of the bamboo ash and straw compost on brown planthopper and rice production. This research was conducted in Bakaran, Sukosari Village, Jumantono, Karanganyar in 12ndDecemberMarch 2017. The study was conducted using Complete Randomized Block Design (RCBD) in paddy fields consisting of 16 plots, each was 16 m2 with Bamboo Leaftreatment, Straw Compost, and Chemical Silica with SiO2of 200 kg-1ha dosage. The variables observed were: Population of brown planthopper, stem hardness, plant height, number of tillers, number of productive tillers, weight of 100 seeds, weight of filled seed, hollow seed weight and percentage of hollow seeds. The data obtained were analyzed by Analysis of Variance (ANOVA) and if there was a significant difference, it followed by Duncans Multiple Range Test (DMRT) at 5% level. The results showed that bamboo leaf ash and straw compost not significan increase the hardness of the rice plant stems and brown planthopper population. Straw compost has the highest potential compared to other treatments because it produces the hardest stem rice and the lowest brown planthoppers population at 11 Weeks. The application of silica from various sources has no direct role in rice production.

Efektivitas Ekstrak Daun Beluntas (Pluchea Indica) Terhadap Mortalitas Ulat Kubis Plutella Xylostella Yudo Sakti; Retno Wijayanti; Sholahuddin Sholahuddin
Agrotechnology Research Journal Vol 2, No 2 (2018): Agrotechnology Research Journal
Publisher : Perkumpulan Agroteknologi/Agroekoteknologi Indonesia

One type of vegetable products in Indonesia is cabbage. However, in the application of cultivating cabbage vegetables had experienced some problems, especially the crop caterpillar of Plutella xylostella. Pest control at the level of farmers in some areas, generally they still use chemical pesticides. As a solution for excessive use of chemical pesticides, the use of botanical insecticides is interesting to develop. One of the plant materials that is easily found in the surrounding environment is “beluntas” leaf (Pluchea indica L) containing alkaloids, flavonoids, saponnins, and tannins. The purpose of this study was to determine the effect of leaves extract of (P. indica) on caterpillar mortality of P. xylostella and the phytotoxicity effect on pakcoy. The results of the research showed that the extract wasn't sufficiently able to affect the larvae mortality of P. xylostella, The treatment concentration of 30% however was able to suppress the emergence of the imago. The extract did not show any phytotoxicity symptom the pakcoy .

Co-Authors Ade Brian Nugraha Ato Sulistyo Aulia Anandita Nidia Melati Al Anshori Sholahuddin Sholahuddin Subagiya Subagiya Supriyadi Supriyadi Yudo Sakti

Title

Found 4 Documents
Search

Abstract

Abstract

Abstract

Abstract

Title Search

Found 4 Documents Search

Abstract

Abstract

Abstract

Abstract

Title

Found 4 Documents
Search