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All Journal Journal of Biodiversity and Biotechnology
Endang Yuniastuti
Department of Agrotechnology, Faculty of Agriculture, Universitas Sebelas Maret, Surakarta, [SCOPUS Author ID: 57192869227]
Agriculture, Biological Sciences & Forestry

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Morphological Characterization of Matoa the “Permata Papua” Fruit (Pometia pinnata) in Central Java Endang Yuniastuti; ML Samodra; Muji Rahayu; Iswahyudi Iswahyudi
Journal of Biodiversity and Biotechnology Vol 4, No 1 (2024)
Publisher : Pusat Penelitian dan Pengembangan Bioteknologi dan Biodiversitas (P3BB) LPPM UNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jbb.v4i1.107921

Abstract

This research aims to obtain morphological character of Matoa (Pometia pinnata JR Forst & G Forst) plant. This research had been conducted from April to October 2021, in 5 Regency (Karanganyar, Klaten, Pati, Sukoharjo, and Surakarta) Central Java. The morphological characther based on direct observation through primary and secondary data recording, and documenting parts of an adult matoa plant with purposive random sampling. Data of morphological characterization of matoa was analyzed using descriptive analysis method with assistance of Ntsys v2.02i program. The results showed a morphological diversity of matoa plant accessions. Fifty (50) matoa accessions exhibit morphological diversity in plant height, canopy diameter, stem circumference, branching type, leaf colour, number of leaflets, compound leaf length, compound leaf petiole length, leaflet width, fruit density, fruit length, fruit weight, seed weight, and fruit skin colour.
Effect of Concentration and Time of Chitosan Application on The Growth of Pineapple (Ananas comosus) Endang Yuniastuti; Salsabila Tiara Putri; Gani Cahyo Handoyo
Journal of Biodiversity and Biotechnology Vol 4, No 2 (2024)
Publisher : Pusat Penelitian dan Pengembangan Bioteknologi dan Biodiversitas (P3BB) LPPM UNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jbb.v4i2.108238

Abstract

Pineapple (Ananas comosus) is a popular fruit crop in Indonesia. Pineapple crowns are one of the planting materials used in pineapple cultivation, but their growth is slower than other planting materials, so that the addition of chitosan is needed, which has the potential to stimulate growth. This study aims to determine the best concentration and application time of chitosan that can improve pineapple growth. The study was conducted in the screenhouse of the Faculty of Agriculture, Sebelas Maret University, Surakarta during March-June 2025 with a Completely Randomized Design (CRD) with two factors, namely chitosan concentration (without chitosan, 1 ppm, 3 ppm, 5 ppm) and time of chitosan application (morning, afternoon, morning and afternoon). Each treatment was repeated 4 times, resulting in 48 experimental units. The results showed that no combination of concentration and time of chitosan application was found to simultaneously increase pineapple growth. The treatment concentration of 1 ppm and 3 ppm gave the best result to increasing leaf number; concentration 1 ppm, 3 ppm, and 5 ppm gave the best result to increasing total leaf area and longest root length. Time of chitosan application once in the morning or evening gave the best result to increasing photosynthesis rate and stomatal conductance. Chitosan has the potential as a biostimulant for plant growth and is effective in increasing the physiological activity of plants.
Co-Authors Gani Cahyo Handoyo Iswahyudi Iswahyudi ML Samodra Muji Rahayu Salsabila Tiara Putri