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Variation of morphological response of cayenne pepper cultivars to phenoxaprop-p-ethyl herbicide Taqiya, Nurul Rifqi; Purwanto, Edi; Suratman, Suratman
JPBIO (Jurnal Pendidikan Biologi) Vol 10, No 2 (2025): November 2025
Publisher : STKIP Persada Khatulistiwa Sintang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31932/jpbio.v10i2.5544

Abstract

In the cultivation of cayenne pepper (Capsicum frutescens L.), there is a problem with weeds. The use of herbicides for weed control can also trigger phytotoxic reactions in cultivated plants. The purpose of this study was to determine the morphological response of various cultivars of cayenne pepper to exposure to the Phenoxaprop-p-ethyl herbicide. This study employed a completely randomized design. The research data were analyzed using ANOVA and Kruskal-Wallis statistical tests. The study's results revealed a strong biphasic (hormesis) response pattern, where a dose of 55 g/L triggers growth, while a dose of 110 g/L causes phytotoxicity.   .
Development of e-Handout based on Discovery Learning for Respiratory System Material Taqiya, Nurul Rifqi; Oprasmani, Elfa; Nevrita, Nevrita
Bioedukasi: Jurnal Pendidikan Biologi Vol 16, No 1 (2023): Bioedukasi: Jurnal Pendidikan Biologi
Publisher : Department of Biology Education Faculty of Teacher Training and Education Sebelas Maret Un

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/bioedukasi-uns.v16i1.69358

Abstract

Motivated by the needs of students for teaching materials on Respiratory System material, the researcher decided to develop teaching material in the form of electronic handout to support the learning of Respiratory System material. This study aims to produce an e-Handout based on Discovery Learning for Respiratory System Material that is valid, practical, and effective. This research uses a 4D development model with four stages, namely define, design, develop, and disseminate. Based on the results of the media and material validity test of e-Handout based on Discovery Learning for Respiratory System Material, the results were very valid. The results of the practicality of media get results with the criteria very practical. The media effectiveness assessment received the very effective criterion with an average classical completion of 86.6%. Based on the results of the research obtained, it can be concluded that the e-Handout based on Discovery Learning for Respiratory System Material is declared valid, practical, and effective for use in learning Biology of Respiratory System material. The developed e-Handout is packaged in a pre-existing form and can be used for independent learning. This research is expected to be a reference for other researchers who will develop similar products on other Biology materials.