KARAKTER MORFOLOGI DAN FISIOLOGI TAPAK DARA (Vinca rosea L.) PADA BEBERAPA CEKAMAN AIR

Sukarman, Sukarman; Darwati, Ireng; Rusmin, Devi

doi:10.21082/jlittri.v6n2.2000.50-54

Cited by 4 publications

(6 citation statements)

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“…Jumlah stomata Luas bidang pandang (mm 2 ) Indeks stomata (IS) diperoleh dengan menggunakan rumus (Wilmer, 1983) (1) luas ± 2 hektar (skala 1:30.000 cm); spesies I. cylindrica (2); spesies P. conjugatum (3); spesies S. levis (4). Hasil penelitian adaptasi anatomi daun pada berbagai faktor lingkungan telah dilaporkan, yakni terhadap intensitas cahaya (Samsuri 2013), cekaman air (Sukarman et al, 2000), lahan bekas tambang emas (Hilmi, 2018), dan terhadap lahan bekas tambang timah (Nurtjahya et al, 2011;Nurtjahya et al, 2016;Juairiah, 2014).…”

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“…Perbedaan kerapatan stomata tersebut merupakan respons tanaman terhadap kondisi lingkungan yang ekstrim. Hal ini sesuai dengan pendapat Sukarman et al (2000) dan Heckenberger et al (1998) bahwa tanaman yang tumbuh di daerah kering dan mendapatkan penyinaran matahari lebih banyak memiliki kerapatan stomata yang lebih besar dibandingkan tanaman yang tumbuh di lingkungan lembab dan ternaungi. Hal ini berbeda dengan respons terhadap cekaman salinitas.…”

Section: Peningkatanunclassified

“…Lokasi pengambilan sampel penelitian di lahan bekas tambang timah HASIL DAN PEMBAHASAN Salah satu adaptasi tumbuhan terhadap lingkungan berupa adaptasi anatomi. Rindyastuti & Hapsari (2017) menyebutkan bahwa karakter struktur anatomi daun dapat digunakan untuk menduga pola adaptasi tumbuhan terhadap faktor-faktor lingkungan.Hasil penelitian adaptasi anatomi daun pada berbagai faktor lingkungan telah dilaporkan, yakni terhadap intensitas cahaya (Samsuri 2013), cekaman air(Sukarman et al, 2000), lahan bekas tambang emas(Hilmi, 2018), dan terhadap lahan bekas tambang timah(Nurtjahya et al, 2011;Nurtjahya et al, 2016;Juairiah, 2014).Terdapat perbedaan hasil pengukuran kerapatan stomata, indeks stomata, panjang sel penjaga, dan lebar sel penjaga dari masingmasing ketiga jenis rumput-rumputan yang tumbuh di lahan bekas tambang timah dan di hutan. Tiap jenis rumput menunjukkan…”

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Stomata of Grass in The Ex Tin-Mining Land in Bangka

2023

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Tin-mined land experiences drought, high light intensity, and temperature which is less supportive of plant growth. The study observed the anatomical responses of grasses leaves. This study aims to measure stomatal density, stomatal index, guard cell length, and guard cell width of three grass species that grow naturally in ex tin-mined land and in undisturbed land. Description method carried out based on the paradermal incision resulted in the wholemount method. The results showed each grass species has a different response to their different habitats. The stomatal density of Imperata cylindrica and Paspalum conjugatum collected from ex tin-mined land were higher than to those plants collected from undisturbed land, however the stomatal density in Scleria levis showed the opposite result. Stomatal index of all three species increases in ex tin-mined land were higher than in undistributed land. Guard cell lengths of I. cylindrica and P. conjugatum were smaller than those in undistributed land, but Scleria levis showed the opposite result. Guard cell width of I. cylindrica and S. levis were wider than those in undistributed land, but P. conjugatum showed the opposite result. These responses may reflect their adaptiveness to tin soils.

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Stomata of Grass in The Ex Tin-Mining Land in Bangka

2023

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“…Menurunnya jumlah daun, luas daun dan menutupnya stomata pada tanaman Vicia faba yang diberi perlakuan cekaman kekeringan menunjukkan pengaruh terhadap fisiologis daun (Hidayati (1996) dalam (Sukarman et al, 2020)). Meningkatnya cekaman kekeringan akan menurunkan respon fisiologis akar (bobot kering akar, jumlah dan efektivitas bintil akar).…”

Section: Pendahuluanunclassified

Pertumbuhan Tanaman Ginseng Jawa (Talinum paniculatum Gaertn) yang Dipengaruhi Volume Penyiraman

et al. 2022

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Javanese ginseng (Talinum paniculatum Gaertn) is one of the medicinal plants which its roots (tubers) and leaves can be used as a medicine. The productivity of javanese ginseng is influenced by the availability of water. The purpose of this study was to determine the growth of javanese ginseng under the differences of watering volume. Watering volume treatment consisted of 7 treatments with 4 replications using a Randomized Block Design (RBD). Watering volume treatment consisted of 80% of field capacity (control), 50% of field capacity, 60% of field capacity, 70% of field capacity, 90 of field capacity, 100% of field capacity and 110% of field capacity. Watering volume treatment on javanese ginseng gave significantly different effect on plant height, number of leaves, root length, wet weight, and chlorophyll content, while the insignificant difference was shown in the number of stomata and relative moisture content. The best growth for plant height, number of leaves, root length, wet weight and chlorophyll content of javanese ginseng was shown in the treatment of watering volume of 50% of field capacity.

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“…Nilam merupakan tanaman penghasil minyak atsiri yang menjadi salah satu sumber devisa negara. Tanaman karuk, tapak dara, melati dan kumis kucing banyak dimanfaatkan sebagai obat tradisional, yaitu berturut-turut sebagai obat asma (Syahid 2008), tekanan darah tinggi (Sukarman et al 2000), membantu penyembuhan luka (Wibawani et al 2015), dan diabetes (Febjislami et al 2018). Penelitian ini bertujuan untuk mempelajari keragaman genetik isolat CMV asal karuk, nilam, tapak dara, melati dan kumis kucing, sebagai salah satu dasar dalam menentukan strategi pengendalian penyebaran virus.…”

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Genetic Diversity of Cucumber Mosaic Virus from Catharanthus roseus, Jasminum sambac, Patchouly, Cubeb and Java-tea

2020

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Cucumber mosaic virus (CMV) symptoms are found in Catharanthus roseus, patchouly (Pogostemon cablin), cubeb (Piper chaba), Jasminum sambac and Java-tea (Orthosiphon aristatus); however, their genetic characterization has not been studied. The study aimed to molecularly characterize the CMV isolates from Catharanthus roseus, patchouly, cubeb, Jasminum sambac and Java-tea. Disease plant samples showing mosaic and yellow mosaic symptoms were collected from Petak Pamer Garden, ISMCRI, Bogor. Molecular characterization was carried out by reverse transcription-polymerase chain reaction (RT-PCR) assay using a specific primer of CMV coat protein gene and DNA sequenced. Sequence analysis was performed using the BLAST, Bioedit, Genedoc, Mega 5 programs. The RT-PCR technique succeeded in amplifying a DNA band measuring 650 bp, according to the prediction of the primary design. BLAST analyses revealed that all of these CMV isolates belonged to subgroup IB. Nucleotide sequence homology of CMV from C. roseus, patchouly, P. chaba, and J. sambac, were more than 95.00%. Based on the phylogenetic tree, these four isolates were closely related to CMV isolate from Japan (AB070622). Homology of the nucleotide sequence of CMV from Java-tea with the other four isolates was below 95.00%. This isolate clustered with CMV isolate from Indonesia (AB042294) and was separated with another four isolates according to the phylogeny tree. In the amino acid sequence alignment, Java-tea isolates had five different amino acids compared to the other four isolates. This result indicates the possibility of CMV transmission between patchouly, Java-tea, C. roseus and J. sambac, so it must be anticipated to prevent its spread.

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KARAKTER MORFOLOGI DAN FISIOLOGI TAPAK DARA (Vinca rosea L.) PADA BEBERAPA CEKAMAN AIR

Cited by 4 publications

References 0 publications

Stomata of Grass in The Ex Tin-Mining Land in Bangka

Stomata of Grass in The Ex Tin-Mining Land in Bangka

Pertumbuhan Tanaman Ginseng Jawa (Talinum paniculatum Gaertn) yang Dipengaruhi Volume Penyiraman

Genetic Diversity of Cucumber Mosaic Virus from Catharanthus roseus, Jasminum sambac, Patchouly, Cubeb and Java-tea

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