Identifikasi Jenis Tumbuhan dari Famili Asteraceae Di Kawasan Wisata Irenggolo Kediri

Author(s):  
Ida Rahmawati ◽  
Tutut Indah Sulistiyowati

Irenggolo merupakan kawasan wisata air terjun yang terletak di pegunungan Wilis. Kawasan ini memiliki keragaman flora yang cukup baik, salah satunya adalah famili Asteraceae. Famili ini memiliki anggota yang sangat beragam. Penelitian tentang tumbuhan Asteraceae dikawasan ini belum pernah dilakukan. Tujuan dari penelitian ini adalah untuk mengetahui jenis-jenis tumbuhan dari famili Asteraceae yang hidup di kawasan Irenggolo. Pengambilan sampel menggunakan teknik Visual Encounter Survey pada empat area yang berbeda. Hasil pengamatan diperoleh 13 jenis tumbuhan dari famili Asteraceae dengan tiga tribe yaitu, Sphagneticola trilobata, Galinsoga parviflora, Crassocephalum crepidioides, Cosmos sulphureus, Tagetes erecta, Sonchus wightianus, Conyza bonariensis, Ageratum conyzoides, Dahlia pinnata, Bidens pilosa, Zinnia elegans, Chromolaena odorata, serta Eupatorium capillifolium.   Kata kunci: famili, Asteraceae, tumbuhan

2021 ◽  
Vol 7 (2) ◽  
pp. 164-171
Author(s):  
Wina Dyah Puspita Sari ◽  
Cicik Suriani ◽  
Dina Handayani

The Asteraceae is a diverse plant species and widely distributed, especially in the tropics and subtropics, consisting of 1,600 - 1,700 genera which include 24,000 - 30,000  species. Asteraceae has characteristics of cup flowers and brackets that are not owned by other plants. The objective of this study was to determine the morphological structure of plants and escpecially the leaf glandular trichome in several species of Asteraceae. The research method used was a descriptive method, to describe and interpret the shape, structure and distribution of leaf trichome in the Asteraceae family. This study used eight species of the Asteraceae family, namely Elephantopus mollis, Bidens pilosa, Tithonia deversifolia, Tridax procumbens, Synedrella nodiflora, Eclipta prostrate, Sphagneticola trilobata and Ageratum conyzoides. The observation results of trichomes at 8 species by Scanning Electrone Microscope (SEM) was obtained varied forms of trichomes, both in shape and size. From the research, it was obtained that the forms of multicellular glandular trichome with various shapes, ranging in size from 50.6 µm - 831.9 µm.    


2017 ◽  
Vol 3 (1) ◽  
pp. 1
Author(s):  
Hendrival Hendrival ◽  
Mentari Setia Ningsih ◽  
Chodirun Chodirun ◽  
Anggra Wismawati

Sitophilus oryzae merupakan hama utama pada berbagai jenis biji-bijian pangan seperti beras, gabah, gandum, dan jagung di penyimpanan. Pengendalian hama S. oryzae dengan insektisida sintetik banyak dilakukan secara fumigasi secara terus-menerus dapat mengakibatkan berbagai dampak negatif seperti toksisitas pada konsumen dan resistensi S. oryzae. Penelitian bertujuan untuk mengevaluasi toksisitas insektisida nabati dari serbuk daun C. odorata, T. erecta, J. curcas, dan A. occidentale terhadap mortalitas S. oryzae. Konsentrasi serbuk daun C. odorata, T. erecta, J. curcas, dan A. occidentale yaitu 2,5, 5, 10, 20, 40, 80, dan 160 mg/g padi serta kontrol. Hubungan antara konsentrasi serbuk daun C. odorata, T. erecta, J. curcas, dan A. occidentale dan waktu kematian dari konsentrasi serbuk insektisida nabati terhadap kematian imago S. oryzae dianalisis dengan analisis probit.  Hasil penelitian menunjukkan bahwa Serbuk daun J. curcas memiliki sekitar 3,59 kali lebih beracun dibandingkan serbuk daun A. occidentale, 4,38 kali lebih beracun dibandingkan serbuk daun T. erecta, 8,04 kali lebih beracun dibandingkan serbuk daun C. odorata terhadap S. oryzae.  Serbuk daun J. curcas menyebabkan waktu kematian S. oryzae paling cepat dibandingkan serbuk daun A. occidentale, T. erecta, dan C. odorata.  Urutan toksisitas insektisida nabati terhadap imago S. oryzae yaitu J. curcas > A. occidentale > T. erecta > C. odorata.Kata kunci: Sitophilus oryzae, Chromolaena odorata, Tagetes erecta, Jatropha curcas, Anacardium occidentale, toksisitas insektisida nabati


1975 ◽  
Vol 32 (0) ◽  
pp. 527-530
Author(s):  
Luiz Gonzaga E. Lordello ◽  
Luiz Carlos Fazuoli ◽  
Condorcet Aranha ◽  
Rubens R.A. Lordello

Root-knot nematodes were found attacking Coffea spp. and also roots of a few weed species usually found in the coffee orchards in São Paulo. C. arabica cv. Catuaí, C. arabica cv. Mundo Novo, Timor Hybrid and a few plants of C. racemosa showed to be susceptible to Meloidogyne exigua. Roots of Ageratum conyzoides, Amaranthus viridis, Bidens pilosa, Coffea arabica cv. Mundo Novo, Coffea racemosa, Commelina virginica, Digitaria sanguinalis, Galinsoga parviflora, Gnaphalium spathulatum, Porophyllum ruderale, Portulaca oleracea, Pterocaulon virgatum and Solanum americanum were disfigured by M. incognita M. arenaria was found attacking roots of Eleusine indica and Gnaphalium spathulatum, and the presence of an unidentified Meloidogyne species was verified in roots of the following species: Vernonia ferruginea, C. arabica x C. canephora, Eupatorium pauciflorum, Coffea canephora cv. Kouillou, Coffea eugenioides, Coffea racemosa, Coffea stenophylla, Euphorbia pilullifera, Solanum americanum, Ageratum conyzoides, Phyllanthus corcovadensis, and Emilia sagittata.


2015 ◽  
Vol 21 ◽  
pp. 23-30
Author(s):  
Baby Babita Das Mallik ◽  
BD Acharya ◽  
M Saquib ◽  
MK Chettri

Allelopathic effects of aqueous extract of different plant parts (root, stem and leaf) of Artemisia dubia on seed germination and seedling growth of two winter crops (Triticum aestivum and Brassica campestries, and some associated weeds (Bidens pilosa, Ageratum conyzoides, Galinsoga parviflora and Cyperus rotundus) have been investigated in the present study. Extracts of root, stem and leaves of Artemisia dubia showed significant reduction in germination and seedling growth of test crops and weeds. Germination of crop and weed seeds and growth of shoot and root were reduced significantly in test treatments in comparison to the control. The seed germination, shoot length and root length were low at higher concentration. Complete inhibition of seed germination of Ageratum conyzoides, Galinsoga parviflora and Cyperus rotundus at 5 and 10% leaf extract of A.dubia was observed. Allelopathic effects were more pronounced with leaf extract than root or stem extract in most cases.The result indicated difference in allelopathic effect on crop seed and weed seed at higher concentrations. ECOPRINT 21: 23-30, 2014DOI: http://dx.doi.org/10.3126/eco.v21i0.11901


2021 ◽  
Vol 9 (2) ◽  
pp. 81-84
Author(s):  
M.C. Freddy Vanlalmuana ◽  
◽  
Lalmuan puia ◽  
Kripamoy Chakraborty ◽  
R. Lalfakzuala ◽  
...  

Invasive alien plants tend to grow much faster than non-invasive plants. The colonization by AM fungi is confirmed by the presence of mycorrhizal structures in the roots of invasive plants. The pattern of hyphae and arbuscules denotes Arum and Paris type of AM fungal morphology. The most common and abundant invasive plants from Asteraceae family were selected for the study. Ageratum conyzoides, Mikania micrantha, Ageratum haustonianum and Bidens Pilosa were selected and eventually showed that they have a high percentage of mycorrhizal colonization. Arum type of morphology is found in three of the plant species and Paris type of morphology is found in one of the species. The extent of AM fungal colonization is fairly high ranging from 60% to 90% among the studied plants. The percentage of arbuscular colonization is highest in Bidens pilosa and the percentage of vesicle and hyphal colonization is highest in Ageratum conyzoides.


2021 ◽  
Vol 5 (2) ◽  
pp. 100-108
Author(s):  
C. C. Ojianwuna ◽  
Ebele Martina Ilondu ◽  
V. N. Enwemime

It is well known that the mosquito, Culex quinquefasciatus, badly affect individuals in endemic setting, causing filariasis. Intervention targeting the vector larva has not been given much priority. Therefore, the efficacy of ethanolic extract of Ageratum conyzoides, Bidens pilosa L. and Spilanthes filicaulis and a mixture of these plants in equal proportion was evaluated for larvicidal activities against filarial mosquito Culex quinquefasciantus. Phytochemical screening of the extracts was done by dissolving 5g each of plants in 30ml ethanol and water separately to obtain plant extracts. Samples were qualitatively screened following standard methodology for phytochemicals. Mortality of mosquito larva was examined after 12hrs, 24hr, 36hrs, and 48hrs treatment. Probit analysis for 50% Lethal Concentration was done using GraphPad Prism 9. Phytochemical screening of the plants revealed that Bidens pilos, Spilanthes filicaulis and Ageratum conyzoides contained moderated concentrations of Anthraquinones and Cardiac glycosids, Tannins, and Alkaloids respectively. Complete mortality was recorded with 0.60ml of Bidens pilosa, and Spilanthes filicaulis at 48hours and 36 hours respectively. More so, complete mortality was recorded with 0.40 and 0.60ml of the three plants in mixed proportion at 36 hours and 24 hours respectively. Larval mortality and time mortality were significantly (p<0.05) different. 50%Lethal Concentration for Ageratum conyzoides L, Bidens pilosa L, Spilanthes filicaulis, and mixture of the three plants in equal proportion are 0.33ml, 0.25ml, 0.08ml, and 0.06ml respectively. Results showed that these plant materials exhibit significant activity and could be considered as potent natural larvicidal agent.


2003 ◽  
Vol 21 (2) ◽  
pp. 239-248 ◽  
Author(s):  
J.F. Macedo ◽  
M. Brandão ◽  
J.F.R. Lara

Realizou-se um estudo na região do Alto São Francisco, Minas Gerais, no final da safra agrícola 1997/1998, visando identificar as plantas daninhas que permanecem nas áreas após a colheita do milho e sua distribuição ao longo da área estudada, destacando-se as mais importantes. As observações foram realizadas em 12 municípios. Em cada local foi lançado, por cem vezes, um quadrado de 0,50 x 0,50 m, a espaços de 10 m. Dentro do quadrado foram contadas as espécies e registrado o número de indivíduos de cada uma delas. Foram encontradas 151 espécies em 35 famílias, sendo Asteraceae a mais bem representada, com 25 espécies. As espécies com maior Índice de Valor de Importância (IVI) foram: Ageratum conyzoides, Sida glaziovii, Conyza bonariensis, Gaya sp., Sida rhombifolia e Blainvillea biaristata. As plantas daninhas remanescentes nas áreas recém-colhidas são fonte de alimento para insetos polinizadores e inimigos naturais das pragas; adequadamente manejadas, elas podem favorecer a manutenção do equilíbrio nos agroecossistemas.


2002 ◽  
Vol 20 (3) ◽  
pp. 327-335 ◽  
Author(s):  
E.A. Ferreira ◽  
S.O. Procópio ◽  
E.A.M. Silva ◽  
A.A. Silva ◽  
R.J.N. Rufino

O objetivo deste trabalho foi de estudar a anatomia das folhas das espécies de plantas daninhas de grande ocorrência no Brasil: Bidens pilosa, Emilia sonchifolia, Ageratum conyzoides e Sonchus asper, visando aprofundar o conhecimento sobre as barreiras que cada espécie impõe à penetração dos herbicidas e, assim, fornecer subsídios para a busca de estratégias para superar esses obstáculos. As folhas completamente expandidas do terceiro ao quinto nó foram coletadas de plantas de ocorrência espontânea no campo. Das folhas de cada espécie foram obtidas três amostras da região central mediana, com aproximadamente 1 cm². Foram realizados estudos de estrutura e clarificação e observações em microscópio eletrônico de varredura (MEV). Todas as espécies avaliadas são anfiestomáticas. As principais barreiras potenciais foliares à penetração de herbicidas constatadas na planta daninha B. pilosa foram a alta densidade tricomática, a baixa densidade estomática na face adaxial e o alto teor de cera epicuticular, principalmente na face adaxial. Alto teor de cera epicuticular, grande espessura da cutícula da face adaxial e baixa densidade estomática nas duas faces foram os obstáculos constatados nas folhas de E. sonchifolia. Já em relação a A. conizoides, a baixa densidade estomática na face adaxial foi o principal obstáculo detectado. S. asper apresentou como principais barreiras foliares à penetração de herbicidas a baixa densidade estomática na face adaxial e a grande espessura da epiderme da face adaxial.


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