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| Registros recuperados: 919 | |
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| Khemporn Petcharaporn; Nittaya Ruensuk. |
| Investigation was made of growth and yield rice in response to different environments of irrigated rice varieties in paddy field at Klong Luang Rice Research Center during 2012 to 2013. The objective of this research was to correlate the effect of climate change on growth and rice yield. Five non-photoperiod sensitive rice varieties (Suphanburi 1, Suphanburi 2, Pathumtani 1, RD 29 and RD 43) were varied planting date. The results showed that 1) Increasing of the mean temperature, rain, humidity, wind speedy and the cumulative of sunshine per day will tend increasing height and number tiller of rice during sowing date to tillering stage. 2) Low temperature and lese of the cumulative amount of sunshine per day effect to the ripening stage was shorter... |
| Tipo: PhysicalObject |
Palavras-chave: Rice; Climate change; Growth; Yield; Global warming; ข้าว; สภาพภูมิอากาศ; การเจริญเติบโต; ผลผลิต; พันธุ์. |
| Ano: 2014 |
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5623 |
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| Bueno,Alessandra Angélica de Pádua; Bond-Buckup,Georgina; Buckup,Ludwig. |
| The crustaceans of the genus Aegla Leach, 1820 are found in streams, rivers and lakes from Franca, São Paulo, Brazil (20º60'S, 47º40'W), to Ilha Madre de Dios, Chile (50º01'10"S, 75º18'45"W) in South America. The growth and cheliped asymmetry of Aegla platensis Schmitt, 1942 were analyzed. The animals were collected from July 1997 to September 1998 at Arroio do Mineiro, Taquara, Rio Grande do Sul, Brazil (29º46'S, 50º53"W). The sex, length, width of the carapace and the total weight of the crab were registered. And after that, the animals were returned to the stream. In the statistical analysis von Bertalanffy's model was used. The growth curves in length (mm) of males and females are described, respectively, by the following equations: L1 = 17.39 [1 - e... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Crustacea; Decapoda; Aegla platensis; Growth. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752000000100006 |
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| Almeida,Marcelo Nocelle de; Bessa,Elisabeth Cristina de Almeida. |
| Biological aspects of Bradybaena similaris (Férussac, 1821) were studied, such as: onset of sexual maturity, occurrence of self-fertilization, oviposition, incubation period, eclosion rate and shell length measurement at different stages of development. It was noted that in isolated B. similaris the minimum and maximum time for reaching sexual maturity were 109 and 180 days, respectively. When kept in groups, the minimum time was 78 days. The occurrence of self-fertilization was observed in 18.4% of specimens. The total number of eggs per oviposition varied from one to 38 (average: 3,5 ± 7,15), the total number of eggs per mollusc varied from one to 39 (average: 7,0 ± 10,21) and the total number of oviposition per mollusc varied form one to six (averege:... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bradybaena similaris; Biology; Growth; Reproduction. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752001000400010 |
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| Orsi,Mário Luís; Shibatta,Oscar Akio. |
| This work consists of age, growth, and circuli formation period determination and the relation of reproduction, temperature, and pluviosity on the growth of S. intermedius Garavello & Britski, 1990. The growth curve was adjusted by the Bertalanfy's expression and the relationship between weight and size was made by the minimum square method to determine the conditioning factor. Gonadossomatic index (IGS) was used to study the reproduction. The assintotic values for length were 33,94 cm and 44,81 cm for males and females, respectively. The circulus were formed annually and the growth was slow and the maximum age was determined to be nine years. The formation of the circuli was influenced by the reproduction, probably allied to other abiotic factors... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Schizodon intermedius; Age; Growth; Tibagi river. |
| Ano: 1999 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751999000300009 |
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| Almeida,Marcelo Nocelle de; Bessa,Elisabeth Cristina de Almeida. |
| Biological aspects of Leptinaria unlamellata (d'Orbigny, 1835) were studied, such as: onset of sexual maturity, occurrence of self-fertilization and shell length measurement at different stages of development. In isolated specimens of L. unilamellata, sexual maturity was reached at 74 days (minimum time) and 104 days (maximum time). For the grouped specimens, the minimum time was 71 days. The occurrence of self-fertilization was observed in both species, 100% of specimens. The total numberof young per birth varied from one to 22 (average: 7,35 ± 5,78), the total number of offsprings per mollusc varied from two to eight (average: 4,1 ± 1,41) and total number of young per mollusc varied from five to 46 (average: 30,21 ± 8,08). As to the shell length in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Leptinaria unilamellata; Biology; Growth; Reproduction. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752001000400009 |
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| Branco,Joaquim Olinto; Verani,José Roberto. |
| In the time period between May/92 to April/93, 2693 (1243 males and 1450 females) specimens of Penaeus paulensis Pérez Farfante, 1967 were collected. The shrimps were captured by night using a hand net in äreas between 30 to 150 cm deep. The abundance of P. paulensis is regulated mainly by the temperature, the summer being the season of greater profusion. The major recruiting period takes place in the Spring with shrimps measuring between 1,0 to 3,0 cm and approximately 2,0 months old. The population reaches the pre-adult in the Fall-Winter period with average length between 8,8 cm (females) and 9,3 cm (males). The migration to the ocean occurs during the Winter. The artisanal fishing in the Conceição Lake is predatory, acting upon the young and pre-adult... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Penaeus paulensis; Populational structure; Growth; Migration; Conceição Lake. |
| Ano: 1998 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751998000200008 |
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| Costa,Marcus R. da; Albieri,Rafael J.; Araújo,Francisco G.. |
| Chloroscombrus chrysurus (Linnaeus, 1766) is the most abundant representant of the Carangidae family in the Sepetiba bay, a c.a. 450 km² semi-closed coastal area in the Southeastern Brazil. We analyze fish (number, weight and size) and environmental data to assess the part of life history of this species in tropical embayment environments. Fish sampling were taken in triplicates by monthly bottom trawls, in three bay zones (inner, middle and outer), defined according to a spatial gradient of depth and salinity. Juveniles were firstly caught in the inner bay zone measuring 30-90 mm total length - TL (mode = 60 mm TL) in Spring. Then they move toward the middle and outermost part of the bay in Summer-Autumn (120-180 mm TL), following a seaward migration to... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coastal fishes; Estuaries; Growth; Tropics. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752005000300009 |
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| Silva,Lidiane C.; Meireles,Liliane M. O.; Junqueira,Flávia O.; Bessa,Elisabeth C. A.. |
| Bulimulus tenuissimus (d'Orbigny, 1835) is a land snail of parasitological importance with a poorly understood biology. The goal of this laboratory study was to determine development and reproductive patterns in B. tenuissimus. Recently hatched individuals in seven groups of 10 were maintained in the laboratory for two years. To test for self-fertilization, 73 additional individuals were isolated. After 180 days the isolated snails showed no signs of reproduction. Subsequently, 30 of these snails were paired to test fertility. We noted the date and time of egg-laying, the number of eggs produced, the number of egg-layings per individual, the incubation period and hatch success. This species shows indeterminate growth. Individuals that were maintained with... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Growth; Land snail; Reproduction. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752008000200009 |
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| Leite,Fosca Pedini Pereira. |
| The post-marsupial growth, sexual differentiation, fecundity and reproductive biology of Hyale media Dana, 1853 living on Sargassum cymosum C. Agardh, 1820 are described. The growth was continuous througth 12 stages for males and 9 for females. The sexual differentiation occours at 2th or 3th moult and was demonstrated by the enlargment of the gnatopod II propod. Number of eggs increased with the female head length. Observations of courtship behavior, incubation, moult processes, emergence of juveniles and brood caracteristics were made. The precopula courtship continued for two days, the eggs were incubated for six days and the juveniles, that stay until three days in the marsupium, moult every day. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amphipods; Reproduction; Growth; Fecundity; Sargassum. |
| Ano: 1996 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000300008 |
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| Valenti,Wagner C; Mello,Jeanette de T.C. de; Lobão,Vera L. |
| In this paper, female Macrobrachium carcinus (Linnaeus, 1758) maturation curve, weight/length relationship, length and weight growth curves were studied. Prawns were captured, by traps, in Ribeira de Iguape river (24ºS and 47ºW), southern Brazil. There were used 207 females. It was observed that M. carcinus presents several spawnings during its life cycle and reproductive period goes on, at least till six years old. Weight/length relationship can be represented for the equation W = 8.73 E-3 L3.28. Expressions obtained for length and weight growth curves are Lt = 21 .0 (1-e-0493t) and Wt= 190 (1-e-0493t)3.28. respectively. A symptotic maximum length and asymptotic maximum weight are nearly attained at six and eight years old, respectively. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Crustacea; Macrobrachium; Maturation; Growth; Prawn. |
| Ano: 1994 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751994000400009 |
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| Registros recuperados: 919 | |
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