scholarly journals Biology of the Wild SilkmothAnaphe panda(Boisduval) in the Kakamega Forest of Western Kenya

2012 ◽  
Vol 2012 ◽  
pp. 1-7 ◽  
Author(s):  
N. Mbahin ◽  
S. K. Raina ◽  
E. N. Kioko ◽  
J. M. Mueke
Keyword(s):  
Life Cycle ◽  
Incubation Period ◽  
Rainy Season ◽  
Dry Season ◽  
Developmental Period ◽  
The Other ◽  
Western Kenya ◽  
Kakamega Forest ◽  
Pupal Period ◽  
Indigenous Forest

A study on the life cycle of the silkmothAnaphe panda(Boisduval) was conducted in two different habitats of the Kakamega Forest in western Kenya: Ikuywa, an indigenous forest, and Isecheno, a mixed indigenous forest. Eggs were laid in clusters, and the incubation period ranged from 40 to 45 days. Larvae fed onBridelia micrantha(Hochst) and passed through seven instars. The developmental period took between 83 to 86 days in the dry season and 112 to118 days in the rainy season. The pupal period ranged between 158 and 178 days in the rainy season and, on the other hand, between 107 and 138 days in the dry season. But the later caught up in development with those that formed earlier. Moths emerged from mid-October until mid-May. Longevity of adultAnaphe pandamoths took between 4 and 6 days, but generally females seemed to live longer than males. The moth also seems to have higher lifespan in the indigenous forest compared to the mixed indigenous forest.

scholarly journals Effect of Acetonic Extracts of Calotropis procera R Br.in (Ait.) on Reproductive Potential of Flat Grain Beetle Cryptolestes pusillus (Schon.) (Coleoptera: Cucujidae)

1970 ◽  
Vol 42 (2) ◽  
pp. 157-162 ◽  
Author(s):  
MM Rahman ◽  
W Islam
Keyword(s):  
Life Cycle ◽  
Incubation Period ◽  
Reproductive Potential ◽  
Adult Emergence ◽  
Developmental Period ◽  
Oviposition Rate ◽  
Calotropis Procera ◽  
Hatching Rate ◽  
Cryptolestes Pusillus

Acetonic extracts of Akanda was tested against different parameters of the life cycle of Cryptolestes pusillus. The lowest and highest oviposition rate (0.89±0.26 and 2.67±0.33 egg/female/day), hatching rate (14.67±0.53 % and 51.11±0.59 %), adult emergence (16.89 % and 40.89 %), and longevity (male 64.78±1.01day and 105.67±1.09 day) and female (69.56 ± 0.38 day and 113.22±0.57 day) were found in doses (552.413 and 163.678?gcm-2) whereas in control they were 4.89±0.35 egg/female/day, 91.22±1.02 %, 88.44 %, 156.11±1.37 day and 169.67±2.52 day respectively. But highest and lowest incubation period (7.33±0.33 day and 4.89±0.35 day) and developmental period (71.67±0.60 and 39.89±0.26 days) occurred in the same doses and in control these are 4.11±0.26 egg/female/day and 33.44±0.50days. Bangladesh J. Sci. Ind. Res. 42(2), 157-162, 2007

Observations on the biology of Lycts Brunneus (Steph.)

1953 ◽  
Vol 1 (1) ◽  
pp. 102 ◽  
Author(s):  
FJ Gay
Keyword(s):  
Heat Treatment ◽  
Life Cycle ◽  
Relative Humidity ◽  
Sex Ratio ◽  
Moisture Content ◽  
Incubation Period ◽  
Developmental Period ◽  
Wood Moisture Content ◽  
Optimal Conditions ◽  
Wood Moisture

An account is given of certain aspects of the biology of Lyctus brunneus (Steph.). Female beetles are able to oviposit within 24 hr. after emerging from infested timber and deposit an average of more than 70 eggs per female over a period of 1-2 weeks. Eggs are deposited at depths of 1.0-6.5 mm. in the wood vessels, preferentially from a transverse surface, but also through radial and tangential faces. The incubation period of the eggs ranges from about 1 week at 26�C, to 3 weeks at 15�C. The egg-adult developmental period ranges from 4 months at 26�C. to 16 months or more at 15�C. Under optimal conditions of temperature, relative humidity (and hence wood moisture content), and nutrition, the life cycle may be as short as 2 months. The sex ratio of L. brunneus is 1 : 1 and the adult beetles live from 2.5 to 7 weeks, depending upon the temperature, females being somewhat longer-lived than males. The larvae of L. brunneus are somewhat more resistant to heat treatment than are the eggs, but one 1/2hr. exposure to 50�C. is completely lethal to both stages.

scholarly journals Artrópodos componentes de la dieta de guajolotes de traspatio en el estado de Michoacán, México

2011 ◽  
Vol 27 (3) ◽  
Author(s):  
Fátima Tobajas-Andrés ◽  
Aureliano Juárez-Caratachea ◽  
Samuel Pineda ◽  
José Isaac Figueroa
Keyword(s):  
Rainy Season ◽  
Dry Season ◽  
The Other ◽  
Immature Stages ◽  
The Common ◽  
Physiographic Regions

This note presents the arthropods as part of the diet of creole turkeys reared in backyards. Fifty turkey crops collected from five physiographic regions of Michoacan were examinated; half of them collected during rainy season and the other half during dry season. Arthropods were found only in turkey crops obtained in rainy season, being adult and immature stages of insects (Hymenoptera, Hemiptera, Coleoptera, Lepidoptera) and myriapods (Diplopoda) the common groups component of the diet of backyard-reared creole turkeys.

scholarly journals Productivity and nutritional value of elephant grass BRS Canará forage

2019 ◽  
Vol 40 (6) ◽  
pp. 2705
Author(s):  
Eduardo André Ferreira ◽  
Joadil Gonçalves de Abreu ◽  
Junio Cesar Martinez ◽  
Ricardo Santos Silva Amorim ◽  
Arthur Behling Neto ◽  
...  
Keyword(s):  
Rainy Season ◽  
Linear Response ◽  
Leaf Blade ◽  
Dry Season ◽  
The Other ◽  
Chemical Characteristics ◽  
Elephant Grass ◽  
Insoluble Protein ◽  
Forage Production ◽  
Quadratic Response

The goal was to determine the ideal cutting age of elephant grass BRS Canará for forage production in the dry and rainy seasons. The experimental design comprised randomized blocks, with five treatments (42, 56, 70, 84, and 98 days in the dry season and 42, 60, 76, 91, and 105 days of regrowth in the rainy season) and four replications each. Agronomic, morphological, and chemical characteristics were evaluated. In the dry season, there was a significant quadratic response for plant height and leaf blade length. For the other characteristics, a significant linear response was observed, except stem diameter. In the rainy season, a quadratic response for the leaf blade length, leaf blade width, and leaf:stem ratio was observed. For the other characteristics, there was a significant linear effect, except for the percentage of dead material. In the dry season, a verified linear response was observed for the chemical characteristics, except neutral detergent insoluble protein. In the rainy season, a linear response was verified for all evaluated characteristics, except acid detergent insoluble protein. Elephant grass BRS Canará for forage production should be cut between 70 and 85 days in the dry season and between 60 and 70 days of regrowth in the rainy season.

scholarly journals Biology of Gram Blue Butterfly, Euchrysops Cnejus (Fabricius) (Lycaenidae: Lapidoptera) and its Relationship with the Phenology of Host-plant (Vigna Unguiculata: Fabaceae)

2015 ◽  
Vol 39 (2) ◽  
pp. 241-248 ◽  
Author(s):  
Sajeda Akand ◽  
MA Bashar ◽  
Humayun Reza Khan
Keyword(s):  
Host Plant ◽  
Laboratory Condition ◽  
Incubation Period ◽  
Vigna Unguiculata ◽  
Developmental Period ◽  
Oviposition Behaviour ◽  
Immature Stages ◽  
Pupal Period ◽  
Academy Of Sciences ◽  
Blue Butterfly

The biology of the gram blue butterfly, Euchrysops cnejus (Fabricius) (Lycaenidae: Lapidoptera) and its relationship with the phenology of host plant cowpea, Vigna unguiculata L. (Fabaceae) were studied. Eggs were reared under the laboratory conditions at 28 ± 20C and 74 ± 3% RH. The incubation period of the eggs found to be 2.33 ± 0.51 days, larval developmental period 14.65 ± 0.51 days, pre-pupal period 0.30 ± 0.04 day and pupal period 5.66 ± 0.51 days. The species took 22.94 ± 0.55 days for development from egg to adult under the laboratory condition. The length of 1st, 2nd, 3rd and 4th instar larvae was 3.66 ± 0.40, 6.16 ± 0.51, 12.16 ± 0.51 and 15.33 ± 0.40 mm, respectively. The pre-pupal length was 9.16 ± 0.61 mm and the pupal length was 9.08 ± 0.37 mm. The host-plant occurs in the field from February to July. The butterfly appeared in March. The coincidence of the gram blue butterfly to its host-plant occurred between April and early July. The oviposition behaviour, incubation and immature stages were found to be profoundly related with host plant-phenological phases.Journal of Bangladesh Academy of Sciences, Vol. 39, No. 2, 241-248, 2015

scholarly journals Biology of Raoiella indica Hirst. (Acari: Tenupalpidae) on Arecanut Leaves under Laboratory Conditions

2020 ◽  
Author(s):  
Indhusri Chavan ◽  
S. Pradeep ◽  
M. Manjunatha ◽  
H. Narayanaswamy ◽  
S. Sridhara
Keyword(s):  
Life Cycle ◽  
Incubation Period ◽  
Developmental Period ◽  
Larval Body ◽  
Unmated Female ◽  
Laboratory Conditions ◽  
Raoiella Indica ◽  
Mated Female

Biology of Raoiella indica Hirst was studied under laboratory at 27 ± 2°C temperature and 79 ± 5.75 percent RH. The finding showed that life cycle of R. indica consisted of five stages viz., eggs, larva, protonymph, deutonymph and adult. The eggs incubation period of R. indica was 9.790 ± 1.94 days. The larval body measured 0.09 and 0.13 mm in length and 0.08 to 0.10 mm in width and lived for 8.35 ± 0.84 days. The total developmental period of female was 29.80 ± 2.73 days and male took 31.27±40 days. Mated female lived for longer time and laid higher number of eggs than unmated female.

scholarly journals Pemuliaan Tanaman Nilam (Progestemon cablin) Lokal Melalui Perkembangbiakan Vegetatif

2016 ◽  
Vol 18 (2) ◽  
pp. 123
Author(s):  
Hermin Pancasakti Kusumaningrum ◽  
Endang Dwi Purbajanti ◽  
Agus Setiadi
Keyword(s):  
Essential Oil ◽  
Vegetative Propagation ◽  
Rainy Season ◽  
Raw Materials ◽  
Climatic Conditions ◽  
Dry Season ◽  
The Other ◽  
Surrounding Area ◽  
Local Varieties ◽  
Different Seasons

Patchouli essential oil is an dominant product from Batang but its production has not been able to meet export needs. The main problem in the production of essential oil of patchouli is limited amount of seeds and dry season effect on the growth of patchouli. On the other hand, society units of patchouli essential oil is very dependent on the availability of raw materials  of patchouli. Searching of patchouli local varieties must  develop in order to  encourages of sustainibility of patchouli production. The purpose of this activity is search and propagate patchouli plant from local varieties that can survive in different seasons of the year according to the climatic conditions of Batang. The study was conducted with the search and propagation of patchouli plant varieties used by farmers in Batang which is Sidikalang varieties and local varieties originating from Batang region and the surrounding area. Furthermore, the vegetative propagation using cuttings will be use followed by its growth observation during dry and rainy season. Results showed that the activities of patchouli plant local varieties of Bandungan, Kendal and Batang showed the best growth in the dry season. Key words: patchouli, vegetatif growth, essential oil.

scholarly journals CUBA SURFACE ESTIMATION FROM SHORELINE MAPPING, GENERATED BY SENTINEL-2 IMAGE PROCESSING

2020 ◽  
Vol XLIII-B3-2020 ◽  
pp. 175-180
Author(s):  
D. Ojeda Martínez ◽  
P. Martinez Fernández ◽  
P. C. Matamoros Fombellida ◽  
M. Morejón González ◽  
R. Álvarez Portal ◽  
...  
Keyword(s):  
Rainy Season ◽  
Dry Season ◽  
The Other ◽  
Spatial Analyses ◽  
Short Term ◽  
Surface Estimation ◽  
Geographical Elements ◽  
Time Changes ◽  
Official Data ◽  
Sentinel 2

Abstract. The coastal with its geographical elements are modified over time, changes that may occur in the long or short term so, shoreline represented in the cartographic documents does not always match with reality. Also, the coastline does not have a well-defined length as results from the fractal-like properties of coastlines, i.e., the fact that a coastline typically has a fractal dimension so, its representation depends to many factors like the cartographic method used, the resolution of the image and the scale of the map. On the other hand, the shoreline is general use to estimate the surface of the landmass, so is important to get a cartographic product with accuracy in a time. Taking into account these elements, this paper is focus in a surface estimation of total Cuban island and keys. To achieved, an expeditious method was used, from the application of geometric corrections to multispectral SENTINEL-2 images, followed by a band algebra using the NDWI index. After those process the automated extraction of shoreline was conducted and finally, refining the vectors by cartographic editing without compromising the accuracy of the results. As a result, two coast lines were obtained from the territory, one in the rainy season and the other in the dry season. The spatial analyses were oriented to surface determination and they were carried out over shoreline in dry season and rainy season, the results were contrasted with the official data published in 2016.

scholarly journals ANALISA POTENSI CURAH HUJAN BERDASARKAN DATA DISTRIBUSI AWAN DAN DATA TEMPERATURE BLACKBODY DI KOTOTABANG SUMATERA BARAT( ANALYSIS OF RAINFALL POTENCY BASED ON CLOUD DISTRIBUTION AND TEMPERATURE BLACKBODY DATA IN KOTOTABANG)

Agromet ◽  
2007 ◽  
Vol 21 (2) ◽  
pp. 39 ◽  
Author(s):  
A. Turyanti ◽  
I. Sunarsih ◽  
E. Hermawan
Keyword(s):  
Rainy Season ◽  
Black Body ◽  
Dry Season ◽  
The Other ◽  
Distribution Data ◽  
Monsoon Circulation ◽  
Precipitation Increase

<p>Precipitation in West Sumatera was influenced by monsoon circulation and its position in equator, and also the topography of Bukit Barisan. This study is designed to learn more about characteristics of precipitation in West Sumatera (case study in Kototabang) using cloud distribution data from XDR and Temperature Black Body (TBB). The result shows the precipitation increase on the end of February, and XDR data represents the clouds are convective, and also TBB data increasing at the same time. This is the early of rainy season in West Sumatera. On the other season, in the middle of July, the intensity of precipitation decreased, and XDR data shows much clouds are formed, but the rainfall wasvery rare until August. The TBB data also represents decreasing of top clouds temperature, so dry season in West Sumatera begin in the middle of July.</p><p>--------------------------------------------------------------------</p><p>Curah hujan Sumatera Barat selain dipengaruhi oleh sirkulasi monsoon, juga dipengaruhi oleh posisinya yang dilalui garis khatulistiwa serta kondisi topografi lokal yang berpegunungan. Penelitian ini mengkaji tentang karakteristik curah hujan wilayah Sumatera Barat khususnya Kototabang berdasar distribusi awan dan Temperature Black Body (TBB). Data curah hujan yang dianalisa adalah data curah hujan bulan Januari dan Februari 2004 (menjelang musim hujan), serta bulan Juli dan Agustus 2004 (musim kemarau). Hasil kajian menunjukkan bahwa intensitas curah hujan mulai meningkat pada akhir bulan Februari, dan didukung oleh data kondisi awan dari XDR yang menunjukkan pada waktu tersebut awan yang tumbuh adalah awan-awan konvektif yang berpotensi menjadi hujan, serta grafik suhu puncak awan (TBB) yang meningkat tajam. Pada musim kemarau, curah hujan yang rendah terjadi mulai pertengahan Juli. Pada periode 3 Agustus sampai 12 Agustus tidak terjadi hujan. Jumlah awan yang terbentuk pada saat musim kemarau lebih banyak dibandingkan musim hujan tetapi tidak potensial untuk terjadi hujan lebat. Data TBB pada periode ini menurun drastis yang menunjukkan suhu puncak awan yang rendah, tidak berpotensi untuk terjadi hujan.</p>

Lactation curves of Holstein-Friesian and Holstein-Friesian x Gir cows

1979 ◽  
Vol 29 (1) ◽  
pp. 101-107 ◽  
Author(s):  
F. E. Madalena ◽  
M. L. Martinez ◽  
A. F. Freitas
Keyword(s):  
Least Squares ◽  
Rainy Season ◽  
Dry Season ◽  
The Other ◽  
Daily Production ◽  
General Validity ◽  
Holstein Friesian ◽  
Lactation Curve

ABSTRACTLinear y = a′ + b′x and gamma type y = ea−cx xb models for the lactation curve (y = daily production on day x of lactation) were adjusted to daily production records of 870 lactations. Within- lactations pooled R2 = 0·71 and R2 = 0·74 were respectively obtained for the linear and gamma type models, the latter being preferred for further analyses on account of its general validity under varied circumstances.The parameters a, b, c of individual gamma type lactation curves were analysed by least squares within a subset of 634 lactations from Holstein-Friesian (HPB), 1/2 HPB: 1/2 Gir (F1) and 3/4 HPB: 1/4 Gir (B1) cows. Crossbreds had both higher initial production and higher persistency of lactation than purebred cows. F1's had higher initial production than B1's, both groups having similar persistency of lactation. Cows calving during the rainy season had higher initial production than cows calving in the dry season, which, however, had more persistent lactations. Parity affected only the initial production a parameter, which was lower for first calvers, while the other parity classes had similar a values.

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