Pollen polymorphism in Thymus capitatus (Lamiaceae)

2007 ◽  
Vol 85 (5) ◽  
pp. 493-500 ◽  
Author(s):  
Sophia Karabournioti ◽  
Eleftherios P. Eleftheriou ◽  
Andreas Thrasyvoulou ◽  
Costas Fasseas

Polymorphism with respect to size and structural characteristics occurs in pollen grains of several species. Pollen grains of Thymus capitatus (L.) Hoffmans & Link. from three different areas of Greece were collected, and their palynological characteristics were measured. Using light and scanning electron microscopy, a quantification of pollen polymorphism of T. capitatus was achieved by measuring the size and the characteristics of exine sculpture. The measurements were repeated during 3 successive years, and statistical analyses with one-way ANOVA and Duncan’s multiple range test were applied. Results revealed differences in the exine pattern between the locations; also, three palynological characteristics (surface, perimeter, and equatorial diameter) differed statistically. The results clearly indicate that pollen grains of T. capitatus are polymorphic between the sampling areas. The polymorphism has been related to environmental parameters and mainly with water availability. Average rainfall seems to be the main factor contributing to the morphological variation of pollen grains by affecting their size and exine sculpture.

Author(s):  
Ni Gusti Ayu Manik Ermayanti ◽  
I Gusti Lanang Oka ◽  
I Gede Mahardika ◽  
I Putu Suyadnya

This study was intended to determine the free testosterone levels and sperm quality of local rabbit that was given commercial feed supplemented cod fish liver oil.  The experiment design that was used in this research was Complete Random Design (CRD) with four experiments of feed, i.e. commercial feed without cod fish liver oil (R-0) as control, commercial feed + 1,5% cod fish liver oil (R-1), commercial feed + cod fish liver oil 3% (R-2), commercial feed + cod fish liver oil 4,5% (R-3). The each experiment included eight rabbits and feed experiment was given starting by 13 weeks to 26 weeks years old. The variable that observed was free testosterone level and sperm quality of local rabbit. The data that was obtained to be analyzed with One Way Anova and if its contrast was done more test with Duncan’s Multiple Range Test (DMRT). The result of this research was to show that supplementation of cod fish liver oil in commercial feed was to show the result that a real distinction of (P<0, 05) towards free testosterone level and sperm quality of local rabbit.


2012 ◽  
Vol 52 (34) ◽  
pp. 411-422 ◽  
Author(s):  
Carlos A. Harguinteguy ◽  
M. Noelia Cofré ◽  
Catalina T. Pastor de Ward

The composition and distribution of the benthic meiofauna assemblages of the Nuevo Gulf (Chubut, Argentina) are described in relation to abiotic variables. The meiofauna and sediment samples were collected in the intertidal zone of four sandy beaches with different anthropic disturbances in June 2005. The samples were obtained at 20 sampling sites using a 2.5 cm diameter core tube at a depth of 10 cm. A total of 13 meiofauna taxa were identified, with the meiofauna being primarily represented by nematodes, gastrotrichs, ciliates and polychaetes and the meiofauna abundances ranging from 1.5 × 10³ to 6.5 × 10³ ind. 10 cm‑2. Univariate (one-way ANOVA test) and multivariate (ANOSIM/MDS test) analyses showed clear dissimilarities in community structures between sites with anthropic effects and those in pristine condition, revealed by the significant differences were found between beaches near to and far way from a city with port activity. The meiofaunal assemblage varied in abundance and diversity, and these changes in the community structure may have been related to environmental gradients on the shore. The BIO‑ENV analysis showed that the redox potential discontinuity depth might be the main factor in the spatial distribution of organisms.


1970 ◽  
Vol 36 (2) ◽  
pp. 111-120 ◽  
Author(s):  
H Ozler ◽  
S Pehlivan

Pollen grains of 20 taxa from two genera of the Liliaceae were examined and compared by LM (light microscope), SEM (scanning electron microscope) and pollens of four taxa were also examined with TEM (transmission electron microscope). Pollen grains shed as monads. They are monosulcate and ellipsoidal. Fritillaria crassifolia subsp. crassifolia Freyn & Smt. sometimes sheds the pollen as dyads. Exine is semitectate and the tectum is perforate. Columellae are simplicolumellate. Ectexine is thicker than endexine. Exine sculpture (ornamentation) is reticulate, reticulate-rugulate, rugulate and retipilate in Asparagus pollens and reticulate, suprareticulate, rugulate-reticulate and striate-reticulate in Fritillaria pollens. Sulcus extends from distal to proximal in some pollens of Asparagus and Fritillaria.   Key words: Asparagus, Fritillaria, Liliaceae, Pollen morphology DOI = 10.3329/bjb.v36i2.1498 Bangladesh J. Bot. 36(2): 111-120, 2007 (December)


Bio-Lectura ◽  
2016 ◽  
Vol 3 (2) ◽  
Author(s):  
Ermina Sari ◽  
Darmadi Darmadi

ABSTRAK: Penelitian  ini bertujuan  untuk mengetahui efektivitas penambahan serbuk gergaji dalam pembuatan pupuk kompos. Penelitian ini dilaksanakan di Rumah kaca Fakultas Pertanian-Universitas Lancang Kuning yang dilaksanakan pada bulan Juli-agustus 2013. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) yang terdiri dari 4 perlakuan dengan 3 kali ulangan dengan jumlah takaran yang berbeda. Parameter yang diamati  adalah Suhu  pengomposan, Lama waktu fermentasi pengomposan, kelembaban pengomposan, keasaman pengomposan dan dilanjutkan dengan uji pertumbuhan vegetatif tumbuhan kacang hijau. Data analisis dengan menggunakan uji one-way ANOVA dan diuji lanjut dengan  Duncan’s Multi Range Test (DMRT) pada taraf signifikan 1%. Hasil penelitian selama 30 hari dalam pembuatan pupuk kompos dengan penambahan serbuk gergaji menunjukkan bahwa, setelah pupuk diuji terhadap pertumbuhan Vegetatif kacang hijau (Vigna radiata L) ternyata tidak terdapat perbedaan yang signifikan atau tidak ada pengaruh.


1970 ◽  
Vol 37 (1) ◽  
pp. 33-42 ◽  
Author(s):  
Ismuhan Potoglu Erkara ◽  
Atila Ocak ◽  
Sevil Pehlivan

Detailed pollen morphological structures of 12 Turkish species of Campanula L., e.g. C. argaea, C. cymbalaria, C. glomerata subsp. hispida, C. latiloba subsp. latiloba, C. lyrata subsp. lyrata, C. olympica, C. persicifolia, C. pterocaula, C. rapunculoides subsp. cordifolia, C. rapunculus var. rapunculus, C. stricta var. stricta, C. pamphylica subsp. tokurii have been studied under light (LM) and scanning electron microscopes (SEM) for the first time. LM and SEM investigations show that the pollen grains of 12 taxa are more or less oblato-sphaeroidal, triporate (and/or tetraporate), tectum-scabrate, or with circular amb. The exine sculpture is granulate-scabrate in C. argaea, C. lyrata subsp. lyrata, C. stricta var. stricta, C. glomerata subsp. hispida and C. pamphylica subsp. tokurii; but those of C. cymbalaria, C. latiloba subsp. latiloba, C. olympica, C. persicifolia, C. pterocaula, C. rapunculoides subsp. cordifolia and C. rapunculus var. rapunculus are rugulate-scabrate.   Key words: Campanula, Pollen grains, Pollen morphology doi:10.3329/bjb.v37i1.1561 Bangladesh J. Bot. 37(1): 33-42, 2008 (June)


Hacquetia ◽  
2021 ◽  
Vol 20 (2) ◽  
pp. 243-256
Author(s):  
Zoya M. Tsymbalyuk ◽  
Daniella Ivanova ◽  
Lyudmila M. Nitsenko

Abstract Pollen morphology of herbarium specimens of four Centranthus species (C. ruber, C. longiflorus, C. kellereri and C. calcitrapae) was studied using LM and SEM. The research aim was to provide data on their pollen characteristics and to evaluate the taxonomic value of these data for species-specific identification. Pollen grains are tricolpate, suboblate to prolate (P/E = 0.81–1.42); medium- or large-sized (P = 49.21–90.44 µm; E = 43.89–93.10 µm). Colpi are long or medium-length, wide at equator, tapered to acute or obtuse ends. Exine sculpture is echinatemicroechinate-nanoechinate; echini (1.00–1.39 µm high) and microechini (0.55–0.98 µm) are conical, with straight or convex sides and acute apices, nanoechini are 0.22–0.46 µm high. Most important characters of taxa diagnostic at species level for the taxonomy are: size of pollen and colpi, exine structure, size of echini and microechini, and pattern of tectum in areas between echini. Pollen grains of C. calcitrapae and C. macrosiphon (sect. Calcitrapa) are generally smaller in size than grains of C. ruber, C. longiflorus and C. kellereri (sect. Centranthus). Pollen of C. kellereri was analysed for the first time in the current study.


2019 ◽  
Vol 2 (2) ◽  
pp. 44-47
Author(s):  
Nadhia Nurul Haq

This research aims to determine the effectiveness of adding powder cassava waste in compost making. Versatile in making compost. This research uses a Completely Randomized Design consisting of 4 settings with 3 replications with different amounts. The parameters chosen were composting temperature, composting fermentation time period, composting humidity, acidity composting and continued with water spinach growth vegetative test. Data analysis using one-way ANOVA test and further tests with Duncan's Multi Range Test at 1% significance level. Research results for 30 days in making compost with cassava powder complement, like fertilizer after growth, Vegetative ground spinach (ipomoea reptans) did not show a significant effect or no effect


2018 ◽  
Vol 10 (1) ◽  
pp. 42-49
Author(s):  
Basito Basito ◽  
Bara Yudhistira ◽  
Dara Audina Meriza

Tujuan dari penelitian ini adalah mengetahui pengaruh kombinasi bahan penstabil CMC dan karagenan terhadap karakteristik sensori velva dan mengetahui karakteristik fisik (daya leleh, overrun, viskositas) dan kimia (total padatan terlarut, kadar air, aktivitas antioksidan dan serat pangan) velva buah naga super merah. Penelitian ini menggunakan rancangan acak lengkap (RAL) dengan satu faktor yaitu variasi kombinasi bahan penstabil CMC dengan karagenan menggunakan 2 ulangan sampel dan 3 ulangan analisa. Data yang diperoleh pada pengujian sensori dianalisis dengan menggunakan one way ANOVA pada tingkat α = 0,005. Jika terdapat perbedaan nyata, maka kemudian dilanjutkan dengan uji Duncan Multiple Range Test (DMRT) pada α = 0,05. Sedangkan data yang diperoleh pada pengujian fisik dan kimia dianalisis menggunakan Paired Sample t-Test pada tingkat α = 0,05.Hasil penelitian ini menunjukan bahwa, kombinasi kulit dan daging buah naga super merah untuk dijadikan puree velva terbaik dengan perbandingan 1:4. Selanjutnya kombinasi bahan penstabil CMC dan karagenan mempengaruhi karakteristik sensori terhadap parameter tekstur dan overall. Tingkat penerimaan velva dengan kombinasi penstabil terbaik pada kombinasi CMC dan karagenan 1:1. Pengaruh penggunaan bahan penstabil CMC dan karagenan terhadap sampel kontrol terlihat pada karakteristik fisik seperti daya leleh, overrun dan viskositas. Selain itu pada karakteristik kimia seperti total padatan terlarut, aktivitas antioksidan dan serat pangan. Tetapi tidak berpengaruh terhadap kadar air velva. Penggunaan bahan penstabil CMC dan karagenan  1:1 menunjukkan nilai daya leleh, overrun, viskositas, aktivitas antioksidan dan serat pangan semakin tinggi.


Jurnal Dampak ◽  
2016 ◽  
Vol 13 (2) ◽  
pp. 68
Author(s):  
Denny Helard ◽  
Shinta Indah ◽  
Nurul Fitria

This study aimed to obtain a more comprehensive analysis of sulfate concentration of in Sungai Batang Arau, Padang. In addition to concentration profile of sulfate, correlation analysis between sulfate and environmental parameters (flowrate-Q, temperature-T, pH, DO and electrical Conductivity-EC) and spatial variation analysis of sulfate along the river were also performed. The analysis showed sulfate concentration tended to increase from upstream to downstream. Sulfate concentrations ranged from 25.9 to 115.1 mg / L and were below the quality standard (400 mg / L). Spearman Rank Correlation analysis showed a relative strong correlation of sulfate and significant with Q (r=0.581, p=0.000), T (r=0.448, p=0.008), and DHL (r=0.411, p=0.008) and no correlation with pH (r=-0.194, p=0.231) and DO (r=-0.279, p=0.081). Result of spatial analysis with a one-way ANOVA at 95% confidence level indicated that there was no a significant variability of sulfate concentration at the sampling stations (p> 0.05) except for S1 with S7 and S8. Moreover, cluster analysis grouped 8 sampling stations into two clusters, low and moderate polluted, based on similarities of sulfate characteristics. Keywords: Batang Arau, sulfate, correlation analysis, spatial variation analysisABSTRAKPenelitian ini bertujuan untuk memperoleh gambaran yang lebih lengkap tentang konsentrasi sulfat dan parameter lingkungan (debit, Q; pH, temperatur, T; dissolved oxygen, DO; dan daya hantar listrik, DHL) di Sungai Batang Arau, Padang. Selain menyajikan profil konsentrasi dan membandingkannya dengan baku mutu pada Peraturan Gubernur Sumatera Barat No. 5 Tahun 2008, analisis korelasi antar parameter dan variasi spasial konsentrasi sulfat di sepanjang sungai juga dilakukan. Hasil analisis menunjukkan konsentrasi sulfat cenderung meningkat dari hulu ke hilir sungai begitu juga dengan parameter lingkungan. Nilai konsentrasi sulfat secara rata-rata berada pada rentang 25,9-115,1 mg/L dan berada di bawah baku mutu (400 mg/L). Analisis korelasi Rank Spearman menunjukkan bahwa parameter sulfat berkorelasi cukup kuat dan signifikan dengan Q (r=0,581, p=0,000), T (r=0,448, p=0,008), dan DHL (r=0,411, p=0,008) dan tidak berkorelasi dengan pH (r=-0,194, p=0,231) dan DO (r=-0,279, p=0,081). Analisis spasial dengan one-way ANOVA pada tingkat kepercayaan 95% menunjukkan perbedaan lokasi sampling tidak mengakibatkan perbedaan konsentrasi sulfat yang signifikan (p>0,05), kecuali antara titik S1 dengan S7 dan S8. Lebih lanjut, analisis spasial dengan menggunakan analisis klaster mengelompokkan titik sampling ke dalam dua klaster, yaitu klaster 1 yang terdiri dari titik S1 sampai titik S7 dan klaster 2 (S8) yang menggambarkan perubahan konsentrasi pencemar sulfat dari konsentrasi rendah ke konsentrasi sedang.Kata kunci: Batang Arau, sulfat, analisis korelasi, analisis variasi spasial


2016 ◽  
Vol 4 (1) ◽  
pp. 52 ◽  
Author(s):  
Mona Ghanad ◽  
Rosimah Binit Nulit ◽  
Rusea Go ◽  
Christina Yong Seok Yien

<p>This study was conducted to determine seed germination on the mechanisms of salinity stress in <em>B. rapa </em>var. <em>parachinensis </em>(Hong kong choy sum). The type of experiment was a completely randomized design with three salinity treatment NaCl, MgCl2, and KCl and minimum four replications was used. Salinity treatment consisted of 0 (control), 50, 100, 150, 200, mM concentrations. The experiment was carried out under 70% relative humidity at 23°C with a photoperiod of 8:16 h light/dark. The germinated seeds were counted every day and germination percentage, seed vigor, seed tolerance, length of seedling and biomass seedling was measured. The data were analyzed by one-way ANOVA multiple comparison test followed by Duncan’s multiple range test.</p>


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