scholarly journals Perubahan perilaku Callosobruchus maculatus Faaabricius terhadap warna cahaya pada kacang-kacangan di penyimpanan

Jurnal Agro ◽  
10.15575/3735 ◽  
2019 ◽  
Vol 6 (1) ◽  
pp. 15-23
Author(s):  
Lukmanul Hakim ◽  
Irhamni Irhamni
Keyword(s):  
Callosobruchus Maculatus ◽  
Oviposition Behavior ◽  
Red Light ◽  
Bean Seed ◽  
Yellow Light ◽  
Green Beans ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Yellow Lights ◽  
Copulation Behavior

Callosobruchus maculatus (Fab.) adalah salah satu species serangga dari ordo Coleoptera, family Brucidae yang merupakan hama kacang-kacangan di gudang penyimpanan. Kerusakan kacang selama penyimpanan diawali dengan perilaku oviposisi telur serangga betina dewasa pada kotiledon biji kacang. Serangga C. maculatus (Fab.) tidak menyukai tempat dengan cahaya terang. Penelitian ini bertujuan untuk mengamati perubahan perilaku oviposisi dan kopulasi serangga dewasa pada kacang-kacangan dengan penerangan empat warna cahaya pada ruang penyimpanan. Pengamatan dan analisis data menggunakan Rancangan Acak Lengkap Faktorial. Faktor petama menggunakan cahaya lampu merah, kuning, hijau dan putih, sedangkan faktor kedua terdiri dari tiga jenis kacang (Fabaceae) yaitu kacang hijau, kacang kedelai dan kacang merah. Hasil penelitian menunjukkan perilaku oviposisi telur terjadi pada cahaya lampu kuning, sedangkan perilaku kopulasi terjadi  pada cahaya lampu merah. Cahaya lampu merah dan kuning dapat memengaruhi perilaku oviposisi dan kopulasi Callosobruchus maculatus (Fab.).ABSTRACTCallosobruchus maculatus (Fab.) is one of the insect species of the order Coleoptera, family Brucidae which is a pest for stored beans. Damage to beans during the storage starts with the behavior of the egg oviposition of adult female insects on bean seed cotyledons. C. maculatus (Fab.) do not like to be in a bright place. This study aimed to observe changes in the behavior of oviposition and copulation of adult insects in beans with four-colour lighting in the storage. The observation and analysis of data used factorial completely randomized design. The first factor were light colors; red, yellow, green, and white light while the second factor consists of three types of beans (Fabaceae); green beans, soybeans and red beans. The results showed that copulation behavior occurred in red light. While the oviposition behavior of eggs occured in yellow light. The red and yellow lights can affect the behavior of oviposistion and copulation of C.maculatus (Fab.). 

scholarly journals Rangsangan Warna Cahaya terhadap Prosentase Karkas Ayam Kampung Super

2021 ◽  
Vol 4 (1) ◽  
pp. 73-78
Author(s):  
Idrus Umar
Keyword(s):  
Blue Light ◽  
White Light ◽  
Red Light ◽  
Green Light ◽  
Carcass Weight ◽  
Yellow Light ◽  
Average Value ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Light Color

The purpose of the study was to determine the effect of giving different colors of light on carcass percentage and carcass weight in Kampung Super chickens. The research design used was a completely randomized design (CRD). A total of 80 Kampung Super chickens were used in this study. The research treatments were P1 (white light color), P2 (yellow light color), P3 (green light color), P4 (red light color), P5 (blue light color). The results of the study of the highest carcass presentation were found in the treatment that was given red light with an average value of 62.455%. The highest carcass weight was found in the same treatment, which was given a red light with an average value of 674.75 g/head. The provision of different light colors did not have a significant effect on the carcass percentage and carcass weight of the finisher phase super free-range chicken. 

PENGARUH EKSTRAK DAUN MIMBA TERHADAP PERKEMBANGAN HAMA Callosobruchus chinensis L. (Coleoptera : Bruchidae)

AGRICA ◽  
2019 ◽  
Vol 1 (2) ◽  
pp. 32-37
Author(s):  
Yustina M.S.W Puu ◽  
Hildegardis Nalti Nansi
Keyword(s):  
Mung Bean ◽  
Leaf Extract ◽  
Callosobruchus Chinensis ◽  
Spawning Activity ◽  
Green Beans ◽  
Leaf Extracts ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Contact Poison ◽  
Neem Leaf Extract

Callosobruchus Chinensis is a pest that damages mung bean seeds in storage and causes damage to both the quality and quantity of seeds. This study aims to determine the effectiveness of neem leaf extracts in suppressing the development of the Callosobruchus Chinensis pest as one of the postharvest pests in the commodity green beans. This research conducted at the Laboratory of the Faculty of Agriculture, University of Flores, by using a Completely Randomized Design (CRD) with five treatments and three replications. The concentration of neem leaf extract treatment is 0 ml / l, 25 ml / l, 30 ml / l, 35 ml / l, and 40 ml / l. The results showed that the concentration of neem leaf extract 40 ml / l caused mortality of C. Chinensis imago as contact poison by 99% and nerve poison by 47%. While the effectiveness of the limb leaf extract on spawning activity was 86%.

scholarly journals Dosis dan Waktu Aplikasi Boron Terhadap Pertumbuhan dan Hasil Kacang Hijau

2020 ◽  
Vol 22 (2) ◽  
pp. 64
Author(s):  
Krisna Cahya Nurani ◽  
Susilo Budiyanto ◽  
Endang Dwi Purbajanti
Keyword(s):  
Plant Height ◽  
Seed Weight ◽  
Root Nodules ◽  
Fertilizer Application ◽  
Green Beans ◽  
Great Demand ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Legume Plants ◽  
Generative Phase

<p>Green beans are legume plants that are in great demand because of their high nutrition content and include plants that require boron to support growth from the vegetative to generative phase. The study aims to assess the growth and production of green beans due to influence of the dose and time of boron application. The research was carried out using completely randomized design with factorial pattern 3×3 with 3 replications. The first factor was the treatment of boron doses of 1, 1.5, and 2 kg/ha was given once at 7 Day After Planting (DAP), fertilizer application twice at 7 and 28 DAP, and once given at 28 DAP. The results showed that dose of boron at a dose of 1 kg/ha was able to produce the number of affective root nodules and the best pod weight. The treatment of boron once at 7 DAP can increase plant height, flowering age, pod weight, and seed weight per pod. The interaction between dose and time of boron application affects the number of affective root nodules and seed weight per pod.</p>

scholarly journals Effect of Cowpea Seed Beetle (Callosobruchus maculatus) Infestation on Selected Landraces of Bambara Groundnut During Storage

2021 ◽  
Vol 9 (2) ◽  
pp. 31-34
Author(s):  
Isma’ila Muhammad ◽  
Nasiru Abdullahi ◽  
Abdulmalik Bala Shu’aibu ◽  
Ibrahim Musa ◽  
Bawa Zakari Gambo ◽  
...  
Keyword(s):  
Storage Time ◽  
Callosobruchus Maculatus ◽  
Bambara Groundnut ◽  
State University ◽  
Sources Of Resistance ◽  
Improvement Program ◽  
Randomized Design ◽  
Percentage Weight ◽  
Cowpea Seed ◽  
Completely Randomized Design

The study was carried out to assess the effect of Callosobruchus maculatus infestation on selected Bambara groundnut (Vigna subterranean) landraces in Gombe during storage to determine the Landrace (s) that are less susceptible to infestation caused by C. maculatus during storage. The trial was done in the Botany laboratory of Gombe State University, Gombe. Seeds were collected from five different Landraces, 40 grams each of healthy and C. maculatus infestation free seeds were infested with two males and three females. Completely Randomized Design (CRD) with three replicates was used to assess the effects of C. maculatus infestation on the selected landraces of Bambara groundnut during storage. The results of the analysis of variance displayed significant differences (p≤ 0.05) among the parameters studied. It indicated that the Mottled and Cream landraces are relatively less susceptible and witness lower damage from the bruchids attack 14.6 (36%) and 17 (46%), whereas Red and Black landraces are more susceptible 24 (61 %) and 22 (57 %) (recorded higher damage from the C. maculatus in terms of percentage weight loss recorded). These results showed the existence of variation among the different Bambara groundnut landraces used due to the infestation of C. maculatus. It can be observed from this study that the use of infestation free landraces at storage time may perhaps be a worthwhile and auspicious factor for integrated pest management especially on bruchids in Bambara groundnuts. additionally, Mottle and Cream landraces might be employed as sources of resistance genes for the subsequent plant improvement program.

scholarly journals Perkecambahan Biji Dictyoneura acuminata Blume. pada Cahaya Merah dan Merah Jauh

2016 ◽  
Vol 7 (1) ◽  
pp. 49
Author(s):  
Fitri Fatma Wardani ◽  
Dian Latifah
Keyword(s):  
Light Intensity ◽  
Papua New Guinea ◽  
Red Light ◽  
The Philippines ◽  
Ornamental Plant ◽  
Experimental Unit ◽  
East Kalimantan ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Greenhouse Control

<p>ABSTRACT</p><p><br />Dictyoneura acuminata Blume is one of species from Sapindaceae which is native to Borneo (Sabah, South Kalimantan, East Kalimantan), the Philippines, Sulawesi, Maluku and Papua New Guinea. Economically, D. acuminata is usually used as an ornamental plant because it has attractive leaves and flowers. D. acuminata propagation can be done by using seed but information on seeds and their germination is still limited. The aim of this study was to determine the pattern of<br />germination and the effect of red and far red light on D. acuminata germination. The experimental design was completely randomized design with one factor and 5 levels. The factors was light with red light, far red light, dark, greenhouse control, and laboratory controls as levels. Each level was repeated 4 times with 10 seeds in each experimental unit. Data showed that far red light causes the seeds germinate 10 days faster than seeds germinated in the greenhouse. D. acuminata seedling<br />height was affected by light. The seedling could grow higher when the light intensity decreased, a process called etiolation.</p><p>Keywords: Dictyoneura acuminata Blume, germination, light</p><p>ABSTRAK</p><p><br />Dictyoneura acuminata Blume adalah salah satu spesies dalam famili Sapindaceae yang merupakan tanaman asli Borneo (Sabah, Kalimantan Selatan, Kalimantan Timur), Filipina, Sulawesi, Maluku dan Papua Nugini. Secara ekonomi, D. acuminata biasanya dimanfaatkan sebagai tanaman hias karena memiliki daun dan bunga yang menarik. Perbanyakan D. acuminata dapat dilakukan dengan menggunakan biji tetapi informasi mengenai biji dan perkecambahannya masih terbatas. Tujuan penelitian ini ialah mengetahui pola perkecambahan dan pengaruh cahaya merah dan merah jauh terhadap perkecambahan biji D. acuminata. Rancangan percobaan yang digunakan adalah Rancangan Acak Lengkap (RAL) dengan satu faktor dan 5 taraf. Faktor yang digunakan yaitu cahaya dengan cahaya merah, cahaya merah jauh, gelap, kontrol rumah kaca, dan kontrol laboratorium sebagai tarafnya. Setiap taraf diulang sebanyak 4 kali dengan 10 biji pada setiap satuan percobaan. Hasil pengamatan menunjukkan bahwa cahaya merah jauh menyebabkan biji berkecambah lebih cepat 10 hari dibandingkan dengan biji yang dikecambahkan di rumah kaca. Tinggi kecambah D. acuminata dipengaruhi oleh perlakuan cahaya yaitu semakin sedikit intensitas cahaya semakin panjang tinggi kecambah, suatu proses yang disebut etiolasi.</p><p>Kata kunci: cahaya, Dicyoneura acuminata Blume, perkecambahan</p>

Assessing Drivers’ Compliance with Restrictive Yellow Traffic Lights in a Developing Country

2020 ◽  
pp. 036119812097365
Author(s):  
Abdoul-Ahad Choupani
Keyword(s):  
Developing Country ◽  
Red Light ◽  
Yellow Light ◽  
Red Light Running ◽  
Traffic Lights ◽  
Light Passing ◽  
Yellow Lights ◽  
Behavioral Issue ◽  
Stop Line ◽  
Restrictive Policy

Driving rules adopt permissive or restrictive policies concerning yellow light running (YLR). In a restrictive policy, vehicles behind the stop line are not allowed to enter the intersection on yellow no matter how close they are to the stop line. YLR policy affects driving risks, safety, and operation. There is limited knowledge about the restrictive policy and drivers’ compliance with this rule. Previous studies on YLR are limited in scope since they tended to use binary stop/go decision models without considering red light running decisions. This potentially results in the loss of information about drivers’ conformity to red signals. This paper examines whether drivers are only non-compliant with yellow lights or whether non-conformity to any prohibitive yellow/red signal emerges as a wider behavioral issue. This study develops regression choice models to predict drivers’ illegal yellow-light passing decisions in a developing country with a poor safety record and explores reasons for drivers’ non-compliance. The results obtained show that the restrictive policy is ineffective in relation to driver compliance, especially in cases where drivers’ non-conformity to any restrictive rule emerges as a behavioral issue of concern. Drivers make their stop/go decisions according to the time needed to cross the intersection, and they consider the yellow light as an opportunity for crossing. Yellow (red) light running rates were 101 (31) per 1,000 vehicles per hour (vph) for the restrictive policy, whereas these rates for the U.S.A., with a permissive policy, were at most 29 (6) per 1,000 vph.

scholarly journals PENGARUH PEMBERIAN KOMPOS AMPAS TEBU DAN NPK 16:16:16 TERHADAP PERTUMBUHAN SERTA PRODUKSI BUNCIS (Phaseolus vulgaris L.)

2020 ◽  
Vol 34 (3) ◽  
pp. 265-274
Author(s):  
Rian Juniarto ◽  
Maizar ◽  
Raisa Baharuddin
Keyword(s):  
Stem Length ◽  
Phaseolus Vulgaris L ◽  
Green Beans ◽  
Randomized Design ◽  
Treatment Dose ◽  
Main Effect ◽  
Completely Randomized Design ◽  
Pod Length ◽  
Pod Number

ABSTRACT The purpose of this study was to determine the effect of the interaction of bagasse compost and NPK 16:16:16 on the growth and production of green beans. This research uses a factorial completely randomized design (RAL) consisting of 2 factors. The first factor of bagasse compost (A) consists of 4 levels, namely: 0, 600, 1200, 1800 g / plot. The second factor NPK 16:16:16 (N) consists of 4 levels, namely: 0, 16, 24, 32 g / plot. Each treatment consisted of 3 replications so that the total was 48 experimental units. The parameters observed were stem length, flowering age, harvest age, number of pods per plant, pod weight per plant, pod weight per plot, pod length per pod, number of remaining pods. Data were analyzed statistically and continued with a BNJ follow-up test of a 5% level. The results showed that the interaction of bagasse compost and NPK 16:16:16 significantly affected pod weight per plant, pod weight per plot, number of pods per plant, pod length per pod, and number of remaining pods. The best treatment of bagasse compost at a dose of 1200 g / plot and NPK 16:16:16 24 g / plot (A2N2). The main effect of the bagasse compost was evident in all observational parameters. The best treatment is 1200 g / plot (A2). The main effect of the 16:16:16 NPK dose is evident in all observational parameters. The best treatment dose is 24 g / per plot (N2). Keywords:  Bagasse compost, NPK, Green Beans

scholarly journals THE EFFECT OF DIFFERENT LIGHT COLORS ON THE BIOMASS GROWTH OF Spirulina platensis

2020 ◽  
Vol 2 (2) ◽  
pp. 132-137
Author(s):  
Putri Hanryani ◽  
Efriyeldi Efriyeldi ◽  
Irwan Effendi
Keyword(s):  
Energy Source ◽  
Cell Growth ◽  
Chemistry Laboratory ◽  
Biomass Growth ◽  
Microbiology Laboratory ◽  
Yellow Light ◽  
Marine Microbiology ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
And Control

Spirulina is microalgae that spreads widely in nature and can be found in various types of environments, both in brackish, sea and fresh water. Spirulina is photoautotrophic, so it requires light as an energy source for cell growth and synthesis of various important substances involved in it. Lack of light can cause photosynthesis to not take place normally so that it will affect the growth of S. platensis. This study aims to determine the effect of different light colors on the biomass growth of S. platensis. This research was conducted from March to April 2019 at the Marine Microbiology Laboratory and the Marine Chemistry Laboratory, Faculty of Fisheries and Marine, Universitas Riau. The method used in this research was the experimental method. The study design used was a completely randomized design (CRD) with four treatments (red, yellow, blue and control colors) and three replications. The results showed that the light colors had a significant effect on the biomass growth of S. platensis. Yellow light gave the best biomass growth, followed by red and blue light.

scholarly journals Evaluation of some Accessions of Bambara Groundnut (Vigna Subterranean L. Verdc) for Resistance to Bruchid Infestation, Based on Grain Source and Seed Coat Colour

2013 ◽  
Vol 53 (3) ◽  
pp. 210-214 ◽  
Author(s):  
Bonaventure Chukwujindu Echezona ◽  
Chinedu Felix Amuji ◽  
Simon Eze
Keyword(s):  
Seed Coat ◽  
Callosobruchus Maculatus ◽  
Adult Emergence ◽  
Coat Colour ◽  
Bambara Groundnut ◽  
Oviposition Deterrence ◽  
Seed Coat Colour ◽  
Randomized Design ◽  
Laboratory Trial ◽  
Completely Randomized Design

Abstract The relative susceptibility of different accessions of Bambara groundnut (Vigna subterranean L. Verdc) to Callosobruchus maculatus (F.) was assessed in a laboratory trial in Nigeria. Treatments were comprised factorial combinations of four grain sources from Nigeria (Enugu, Anambra, Benue and Kogi state) and three predominantly contrasting seed coat colours (black, brown, and milky-colour) laid out in a completely randomized design (CRD). There were four replications of each treatment. Egg depositions by adult C. maculatus were affected by grain sources such that ovipositions on those sourced from the state of Anambra were significantly (p < 0.05) higher than those from other sources. Similarly, black coloured grains harboured more insects and eggs compared to other seed coat colours. Accesssions collected from Benue and/or those with a milky-coloured seed coat showed some levels of oviposition deterrence. However, the interaction of grain source and seed coat colour was not significant based on oviposition, adult emergence, and mortality counts. Grain sources and seed coat colour were, therefore, important traits to be considered while selecting ideotypes for resistance to C. maculatus

scholarly journals PENGARUH LAMA PERENDAMAN EKSTRAK KULIT BATANG “KAJU BA’I” (Aglaia tomentosa) TERHADAP EFEKTIVITAS INSEKTISIDA NABATI PADA HAMA GUDANG KACANG HIJAU Callosobruschus sp (COLEOPTERA : BRUCHIDAE)

AGRICA ◽  
2020 ◽  
Vol 3 (1) ◽  
pp. 49-62
Author(s):  
Mardiah Sarah ◽  
Sri Wahyuni ◽  
Willybrordus Lanamana
Keyword(s):  
Bark Extract ◽  
Botanical Insecticide ◽  
Green Beans ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Contact Poison

This study aims to the influence of soaking bark extract “Kaju Ba’i” (Aglaia tomentose) and its effectiveness as a botanical insecticide of the green beans warehouse pest Callosobruschus app. The experiment was conducted at the Laboratory in the Faculty of Agriculture University of Flores, Ende, from September to October 2010. The research used a completely randomized design with 5 treatments of K0 (control), K1 (bark extract Kaju Ba’i immersed for one day), K2 (bark extract Kaju Ba’i immersed for two days), K3 (bark extract Kaju Ba’i immersed three two days), K4 (bark extract Kaju Ba’i immersed for four days) each treatment was repeated 10 times. Observed variables included mortality, contact nerve toxins and anti-oviposition activity.  The results showed that the treatment K4 possesses the highest level of effectiveness, and cause mortality as contact poison (99%), nerve toxins (2.7%) and anti-oviposition (75%).

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