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All Journal BIOTROPIC The Journal of Tropical Biology BIOEDUSCIENCE
Sri Lestari
Fakultas Biologi, Universitas Jenderal Soedirman, Jalan Dr. Suparno Gendeng, Purwokerto Utara, Kabupaten Banyumas, Jawa Tengah, Indonesia, 53122
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education

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Pengaruh Pemberian Bioherbisida Ekstrak Daun Ageratum conyzoides, Achasma walang, dan Wedelia trilobata terhadap Morfologi dan Stomata Daun Axonopus compressus Riska Desi Aryani; Dian Palupi; Sri Lestari
Biotropic : The Journal of Tropical Biology Vol. 6 No. 1 (2022): Biotropic, Volume 6 Nomor 1, 2022
Publisher : Program Studi Biologi, Fakultas Sains dan Teknologi, Universitas Islam Negeri Sunan Ampel Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29080/biotropic.2022.1.1.38 - 44

Abstract

Axonopus compressus (Sw.) Beauv. is a type of weeds that grows invasively and wildly. The weeds growth can be controlled by applying bioherbicides. The leaf extracts of Wedelia trilobata, Achasma walang, and Ageratum conyzoides produce allelochemicals that can be used as bioherbicides. The study aims to determine the effects of applying bioherbicides from the leaf extracts of W. trilobata, A. walang, and A. conyzoides on the morphology and stomata of A. compressus weeds. This study was done by: 1) making the leaf extracts W. trilobata, A. walang, and A. conyzoides with each concentration is 10 ppm, 25 ppm, and 50 ppm; 2) giving the leaf extracts treatment on the growth of A. compressus weeds; and 3) making observations on the morphology and stomata of A. compressus weeds. The results showed that there were morphological transformations on the A. compressus weeds after applying the bioherbicides. The transformations were seen in the changing color of the leaves, the reduced leaf size, and the increased number of chlorotic leaves. Meanwhile, the effects of applying the bioherbicides on the stomata of A. compressus weeds were also found, i.e. in the changing size of stomata, and the increased of stomatal index and density.
Variasi Morfologi Dan Anatomi Sukun (Artocarpus altilis) Berdasarkan Perbedaan Ketinggian Tempat Dian Palupi; Riska Desi Aryani; Sri Lestari
BIOEDUSCIENCE Vol 5 No 2 (2021): BIOEDUSCIENCE
Publisher : Universitas Muhammadiyah Prof. Dr. Hamka

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (519.695 KB) | DOI: 10.22236/j.bes/525975

Abstract

Background: Breadfruit [Artocarpus altilis (Parkinson ex F.A.Zorn) Fosberg] is a versatile plant that can be used by humans. Breadfruit has morphological variations that are thought to be related to anatomical variations that are formed as an adaptation mechanism to survive in a different area. This plant has the ability to live in different altitude ranges, from coastal areas to upland areas. This research was conducted for eight months in areas with altitude ranges of <350 masl, 350-700 masl, and >700 masl in Banyumas, Purbalingga, and Cilacap Regencies. Sampling of plants was carried out randomly selected (purposive random sampling), then described their morphological characteristics. Furthermore, the leaves are made for anatomical preservation to determine the anatomical character. Breadfruit plants that grow at an altitude of less than 350 m above sea level have the characteristics of a higher, larger diameter stem, have a tighter branching, more sap production, a higher number of fruit and have a larger fruit size. The anatomical characteristics of breadfruit plants that grow at an altitude of less than 350 masl have stomata characters that are wider and longer than those of 350-700 masl and > 700 masl. The highest stomata and trichomata density at an altitude > 700 masl. The highest mean cuticle thickness, epidermis, palisade ratio and mesophyll thickness were highest in breadfruit leaves at altitudes <350 masl.
Co-Authors Dian Palupi Riska Desi Aryani Riska Desi Aryani