scholarly journals Diversity of Arthropods in Different Rice Varieties in Bantul Regency

2020 ◽  
Vol 24 (2) ◽  
pp. 188
Author(s):  
Indah Sri Lestari ◽  
Edhi Martono ◽  
Arman Wijonarko

High-yielding varieties are used as one of the technologies to increase rice productivity in Indonesia. Varieties, however, invite the arrival of arthropod during their growing phase. One of the method to manage arthropods during the growing stage is the use of high-yielding varieties. In this trial, IR-64, Ciherang, Situ Bagendit, Mekongga and Mixed Varieties were used. The mixed variety is a combination of IR-64, Ciherang, Situ Bagendit and Mekongga. These rice varieties are the most common varieties used by farmers in Bantul Regency. To collect arthropods, the traps used were sweep net, yellow sticky and pitfall traps. The purpose of this study was to determine arthropod’s diversity, evenness and dominance in different rice plant varieties in one planting season. The study was conducted in the village of Wijirejo, Pandak, Bantul, Yogyakarta. The observations were conducted in the evening between 16.00–18.00 p.m., with the interval of twice a week for 5 observations. Arthropods were identified up to the family level. This research resulted in the diversity index (Shannon-Winner) of 1.97–2.82 which is categorized as medium, the evenness index of 0.61–0.71, categorized as medium and the dominance index of 0.10–0.22, categorized as lower level. The ecosystemof the research area was unstable in diversity, evenness, and dominance due to the transition process, and it took quite some times to stabilize the rice fields. Therefore, a more thorough research is still necessary, especially for the ricegrowing season to follow.

2018 ◽  
pp. 102-115
Author(s):  
Eva Toulouze

Eastern Udmurt autumn rituals: An ethnographic description based on fieldwork There is a good amount of literature about Eastern Udmurt religious practice, particularly under its collective form of village rituals, as the Eastern Udmurt have retained much of their ethnic religion: their ancestors left their villages in the core Udmurt territory, now Udmurtia, as they wanted to go on living according to their customs, threatened by forceful Evangelisation. While many spectacular features such as the village ceremonies have drawn scholarly attention since the 19th century, the Eastern Udmurt religious practice encompasses also more modest rituals at the family level, as for example commemorations of the dead, Spring and Autumn ceremonies. Literature about the latter is quite reduced, as is it merely mentioned both in older and more recent works. This article is based on the author's fieldwork in 2017 and presents the ceremonies in three different families living in different villages of the Tatyshly district of Bashkortostan. It allows us to compare them and to understand the core of the ritual: it is implemented in the family circle, with the participation of a close range of kin, and encompasses both porridge eating and praying. It can at least give an idea of the living practice of this ritual in today's Eastern Udmurt villages. This depends widely on the age of the main organisers, on their occupations: older retired people will organise more traditional rituals than younger, employed Udmurts. Further research will ascertain how much of this tradition is still alive in other districts and in other places.


2019 ◽  
Vol 5 (1) ◽  
pp. 18
Author(s):  
Petrus A Beding ◽  
Batseba M. W. Tiro

The cultivation technology and the use of new superior varieties (VUB) is one of the main components in increasing rice productivity in rainfed land. The study aims to evaluate the performance of the rice VUB in rainfed lowland cultivated land with integrated crop management (PTT) approach. This activity was carried out in the village of Benyom Jaya 1, Nimbokrang District, Jayapura Regency, Papua Province, from April to September 2017 using a Randomized Group Design. each variety used is. VUB tested by Inpari, 7, Inpari 30, Inpari 32 and Inpari 33, were planted in a plot measuring 2 hectares of experimental area for each treatment was 20 x 20 m2. The parameters evaluated include plant height, number of tillers, yield components and pest and disease attacks. The results of the study showed that the Inpari 33 variety gave a significantly different growth and yield to the Inpari 30 and 7 varieties. The suitable and high yielding varieties at the study site were the high production varieties obtained from the Inpari 33 variety (5.9 t / ha) and the lowest variety is  Inpari  32 (4.47 t / ha) Keywords: Rice Varieties, Rainfed Rice Fields, Performance, PTT


2019 ◽  
Vol 23 (2) ◽  
pp. 285
Author(s):  
Gracia Melsiana Aldini ◽  
Edhi Martono ◽  
Y. Andi Trisyono

The presence of flowering plants is essential to the conservation of natural enemies in some particular ecosystems, such as agroecosystem. The objectives of this research were to determine the natural enemies associated with refugial flowering plants Zinnia elegans, Cosmos sulphureus, and Tagetes erecta planted in the rice bunts. The research took place in the rice farms in the villages of Jatisarono, Wijimulyo, and Tanjungharjo, Nanggulan Regency, Kulon Progo, District. The natural enemies were observed using three different methods: insect nets, pitfall, and direct observation. The observations were conducted in the morning, between 07.00-10.00 a.m., with an interval twice a week for 8-weeks. The natural enemies were identified to the family level. Diversity index (Shannon-Wienner), evenness index, and dominance were calculated for each plant. The diversity index for Z. elegans, C. sulphureus, and T. erecta fell in the category of medium ranging from 1.328-1.581 with medium evenness (0.365-0.574) and high dominance of 0.314-0.453. Natural enemies associated with C. sulphureus and Z. elegans were more compared to those associated with T. erecta.


2021 ◽  
Vol 306 ◽  
pp. 01045
Author(s):  
Muhammad Alwi Mustaha ◽  
Cipto Nugroho ◽  
Samrin ◽  
Dian Rahmawati

In order to increase national rice production, the Ministry of Agriculture has released some high yielding varieties. The research was aimed to obtain superior rice varieties adapted to irrigated lowland agro-ecosystems of Southeast Sulawesi. In the first planting season, research was carried out in Olo-oloho Village, Uepai sub district and the second season at the Wawotobi Experimental Garden. Eight varieties were tested, i.e. Inpari 31, Inpari 34, Inpari 35, Inpari 38, Inpari 39, Inpari 41, Inpari 42, Inpari 43 and Mekongga. The variables observed were growth, yield and pest and disease dynamics. The results shows that there was variation growth and yield of the tested varieties. The growth and yield also varied depend on the season. In the first planting season, Inpari 34 and Inpari 43 showed better growth than others, but Inpari 31 resulted the highest rice yield (4.83 t/ha). In the second planting season, only Inpari 34 showed consistent growth, but the variety that had showed the highest yield was Inpari 43 (8.13 t/ha).


2015 ◽  
Vol 3 (1) ◽  
pp. 16
Author(s):  
Feybe H. A Zachawerus ◽  
Alex D. Kambey ◽  
Rose O. S. E. Mantiri

Seagrass community of Mokupa Beach waters, Tombariri sub-district, Minahasa Regency North Sulawesi was selected as study site to get information regarding the distribution, abundance, and diversity of species. Five species were identified in this study are as follow: Cymodocea rotundata, Thalassia hemprichii, Halopila ovalis, Halodule pinifolia, and Enhalus acoroides. T. hemprichii had the highest density among those 5 species with 80.266 individuals/m2, relative density 45.709 % and score of dominance index (C) 0.3269. Among three transects deployed in the study site, transect III has the highest diversity index representing by ‘H = 1.3072. The result showed that seagrass community could grow well in the area which is also shown through similar score of evenness index.Keywords: Seagrass, diversity, dominance A B S T R A K Komunitas Lamun di Perairan Desa Mokupa Kecamatan Tombariri, Kabupaten Minahasa Sulawesi Utara sebagai lokasi penelitian untuk mendapatkan informasi tentang distribusi, kelimpahan dan keanekaragaman spesies. Diperoleh 5 spesies yaitu : Cymodocea rotundata, Thalassia hemprichii, Halopila ovalis, Halodule pinifolia, Enhalus acoroides. Kepadatan spesies yang tertinggi adalah Thalassia hemprichii 80,266 ind/m2. Kepadatan relatif (%) yang tertinggi adalah Thalassia hemprichii 45,709 %. Nilai indeks dominasi (C) (0,3269). Nilai keanekaragaman tertinggi dari ketiga transek terdapat pada transek III dengan nilai (Hʹ) 1,3072. menunjukan bahwa komunitas ini masih dapat tumbuh dengan baik di daerah tersebut. Hal ini juga ditunjang dengan nilai kemerataan yang hampir sama di ketiga transek penelitian.                                                                               Kata Kunci : Lamun, keanekaragaman, dominasi1Mahasiswa Program Studi MSP FPIK-UNSRAT2Staf pengajar Fakultas Perikanan dan Ilmu Kelautan Universitas Sam Ratulangi


2021 ◽  
Vol 4 (2) ◽  
pp. 106-111
Author(s):  
Bob Anggara ◽  
Afrizal Tanjung ◽  
Syafruddin Nasution

This research was conducted in the village of Sambungo, Silaut District, Pesisir Selatan Regency, West Sumatra Province in August 2020. The purpose of this study was to determine the structure of the macrozoobenthos community which includes: type, density, diversity, uniformity, dominance and distribution patterns. Sampling was done randomly at 3 stations, each station consists of 3 transects and each transect consists of 3 plots, namely in the upper middle and lower in the intertidal zone. The results of the study found 5 classes of macrozoobenthos with 9 species. The abundance values ​​obtained ranged from 3.33 - 5.11 ind/m2. The diversity index value ranges from 1.18-1.54 which is classified as moderate, while the dominance index value ranges from 0.39-0.52, namely there was no species that dominate, the uniformity index value ranges from 0.03-0.06 which is not balanced and the value of the distribution pattern ranges from 2.81 to 3.76 with the pattern of distribution in groups


2020 ◽  
Vol 6 (3) ◽  
pp. 82
Author(s):  
Gunaria Siagian

This study aims to determine the diversity, abundance, dominance index, similarity index and inequality of land arthropods in the people's plantations in the village of Jawatongah, Hatonduhan Subdistrict, Simalungun Regency. This research was conducted in October 2019 until November 2019. Sampling was carried out at 5 stations in the People's plantation in Jawatongah Village, Hatonduhan District, Simalungun Regency. Data retrieval is done 3 times using trap traps. From the results of research and data analysis found 9 orders and 1 family consisting of 9 orders and 16 families consisting of: Formicidae, Flatidae, Silphidae, Anobiidae, Labiduridae, Tephritidae, Culicidae, Rhagionidae, Simuliidae, Blephariceridae, Gryllidae, Anobiidae, Labiduridae, Tephritidae, Culicidae, Rhagionidae, Simuliidae, Blephariceridae, Gryllidae, Anobiidae, Labiduridae, Tephritidae, Culicidae, Rhagionidae, Simuliidae, Blephariceridae, Gryllidae, Acobiidae, Acrididae, Phrididae, Acrididae, Acrididae, Acrididae, Acrididae, Acrididae, Acrididae, Acrididae, Acrididae, Acrididae, Acrididae, Acrididae, Acrididae, Acrididae. Lachesillidae, Liposcelidae, Pholidae, Araneidae, Ageleidae. The highest relative abundance of soil Arthropods was Tephritidae (71, 486%), the lowest was Liposcelidae and Aranidae (0.367%). The diversity index of the Athropods of the soil ranged from 0.996-1.536. The dominance index ranged from 0, 27155 - 0.53598. From these observations it can be seen that in general the Tephritidae group dominates all places in the study location. For the Arthropod similarity index of land in the smallholder plantations of Jawatongah village, Hatonduhan sub-district, Simalungun Regency, ranged between 55.56% - 80%. Knowledge and knowledge about diversity, abundance, status and distribution of animals are very important for humans and need to be preserved to improve the welfare of society, especially in agriculture.


2013 ◽  
Vol 1 (2) ◽  
pp. 87 ◽  
Author(s):  
Ari B. Rondonuwu ◽  
John L Tombokan ◽  
Unstain NWJ Rembet

DISTRIBUSI DAN KELIMPAHAN IKAN KARANG FAMILI POMACENTRIDAE DI PERAIRAN TERUMBU KARANG DESA POOPOH KECAMATAN TOMBARIRI KABUPATEN MINAHASA Distribution and Abundance of Coral Fishes the Family Pomacentridae in Coral Reef Waters Poopoh Village Sub-District Tombariri Minahasa Regency Ari B Rondonuwu1, John L Tombokan1, Unstain NWJ Rembet1   ABSTRACT This study aims to determine the distribution and abundance of reef fish (families Pomacentridae) in coral reef waters of Poopoh village District Tombariri.  This study was conducted at 3 stations. Data collected was done using visual census on the 50-meter transect line at 3 meters and 10 meters depths. In addition to revealing the number of species and abundance of individuals Pomacentridae, data analysis aimed to determine the community index. Based on the identification, obtained 41 species from 12 genera. 4 species has its presence in large numbers in all three observation stations, Chromis margaritifer, Pomacentrus mollucensis, Chrysiptera unimaculata, and the species with the largest number of individuals that is Chromis ternatensis. Based on depth, found 35 species with a total of 3863 individuals at a depth of 3 meters and 36 species at a depth of 10 meters with a total of 3810 individuals. Pomacentridae fish species diversity index ranged between 2.181-2.857. Dominance Index, are categorized low in the range of 0.081-0.197.. Keywords : coral fishes, Pomacentridae, coral reef, Poopoh   ABSTRAK Penelitian ini bertujuan untuk mengetahui distribusi dan kelimpahan ikan karang famili pomacentridae  di perairan terumbu karang Desa Poopoh Kecama-tan Tombariri. Penelitian dilakukan di 3 lokasi. Pengambilan data dilakukan dengan metode sensus visual pada transek garis sepanjang 50 meter, kedalaman 3 meter dan 10 meter. Selain mengungkapkan jumlah spesies dan kelimpahan individu Pomacentridae, analisis data diarahkan untuk mengetahui indeks komunitas. Berdasarkan hasil identifikasi, diperoleh 41 spesies yang berasal dari 12 genera. 4 spesies kehadirannya dalam jumlah yang besar di ketiga stasiun pengamatan yaitu, Chromis margaritifer, Pomacentrus mollucensis, Chrysiptera unimaculata, dan spesies dengan jumlah individu terbesar yaitu Chromis ternatensis. Berdasarkan kedalaman, ditemukan 35 spesies dengan total 3863 individu pada kedalaman 3 meter dan 36 spesies di kedalaman 10 meter dengan jumlah total 3810 individu.  Indeks keanekaragaman spesies ikan Pomacentridae berkisar antara 2.181-2.857. Indeks dominasi, dikategorikan rendah pada kisaran 0.081- 0.197.   Kata kunci : ikan karang, Pomacentridae, terumbu karang, Poopoh       1 Laboratorium Pengelolaan Pesisir Fakultas Perikanan dan Ilmu Kelautan Universitas Sam Ratulangi


2019 ◽  
Vol 9 (2) ◽  
pp. 45-49
Author(s):  
Hamid

The existence of a type of parasitoid in an area with a certain height is largely determined by several factors, including the physical environment, space, feed sources, the presence of other parasites and human intervention. The purpose of this study was to determine the community structure of parasitoid associated with stone leek leafminer including abundance index, diversity index and dominance index in several locations of onion planting in Bali. Field surveys are conducted regularly during one planting season. On the location of onion plantations with an altitude of<500 m asl, covering the Badung Regency and Gianyar Regencies, on the onion planting area at that location no parasitoid was found (abundance index R1 = 0.00; diversity index H’= 0.00; dominance index D = 0.00). In locations with a height of ≥500-1000 m asl, covering several locations in Tabanan Regency, there were 2 types of parasitoid, Hemiptarsenus varicornis as many 3 adult (abundance index R1 = 0.6213; diversity index H’ = 0.2544; dominance index D = 0.0100) and Opius sp. 22 adult (abundance index R1 = 6.5239; diversity index H’= 0.1125; dominance index D = 0.7700). In locations with an altitude of ≥1000 m asl, covering several locations in Tabanan Regency and Bangli Regency, there were also 2 types of parasitoid namely H. varicornis 5 adult (abundance index R1 = 1.2941; diversity index H’ = 0.3380; dominance index D = 0.0433) and Opius sp. 17 adult (abundance index R1 = 5.1763; diversity index H’= 0.2013; dominance index D = 0.5887).


2020 ◽  
Vol 6 (2) ◽  
Author(s):  
Puput Pujiati ◽  
Syafrina Lamin ◽  
Yuanita Windusari

Coal mining can disrupt the balance of the ecosystem, including the soil environment ecosystem as a habitat for soil arthropods. This study aims to see the soil arthropod family, relative density, diversity, dominance and evenness of soil arthropods in the revegetation area of the ex-mining area of PT. Bara Alam Utama. The re-search was conducted in the revegetation area of the former coal mine area of PT. Bara Alam Utama in Lahat district, South Sumatra. The research area consists of 8 location points, namely natural areas, revegetation areas of age 7,6,5,4,3,2 and 1 year. The study was conducted using an exploratory survey method, sampling was car-ried out based on the purposive sampling method by drawing a 100 m long transect with 5 sample plots inside measuring 20 x 10 m at each revegetation age. The results showed that the highest soil arthropod diversity index was found at the 3 year old revegetation location (H = 0.915) and the highest soil arthropod evenness index was at the 3 year old revegetation location (e = 0.17), while the highest soil arthropod dominance index was at 5 year old revegetation location (D = 0.886) which causes the 5 year revegetation location to have the lowest soil ar-thropod diversity index and evenness index (H = 0.351 and e = 0.054), while the lowest soil arthropod domi-nance index value is at the 3 year old revegetation location (D = 0.667), so it can be seen that there is a correla-tion between the diversity index and the evenness index of soil arthropods where both are inversely proportional to the results of the calculation of the dominance index. The high and low diversity index at each research loca-tion is influenced by abiotic factors (pH, soil temperature and soil moisture), age of revegetation and type of vegetation


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