Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados 32 (3) 106 (2) 19 (1) 48 (1) 52 (1) 61 (1) 63 (1) 86 (1) Mais... Autor León Velasco, Humberto (3) Acharaporn Na Lampang Noenplab (2) Benjawan Phonkhod (2) Chuanchom Deerusamee (2) Cruz,Renata Pereira da (2) Jaturong Pipatpiriyanon (2) Mungmat Wangka (2) Phamorn Pattawatang (2) Preamkamon Moonnilta (2) Rasamee Dhitikiattipong (2) Sard Toktiwa (2) Sumalee Sangprem (2) Suradet Palawisut (2) Wanakorn Intrarastit (2) Wilai Palawisut (2) Wiphavadee Chamnan (2) Bazana,Maiara Taís (1) Cabreira,Caroline (1) Caramori,Lázara Pereira Campos (1) Caramori,Paulo Henrique (1) Mais... Palavra-chave Cold tolerance (11) Aptitud combinatoria (3) Combining ability (3) Heterosis (3) Hybrids (3) Híbridos (3) Brown planthopper (2) High yield (2) Irrigated rice (2) Orghum bicolor L. Moench (2) Oryza sativa L. (2) Plant breeding (2) Tolerancia al frío Sorghum bicolor L. Moench (2) ข้าวสารเมล็ดยาวชั้น 1 (2) นาชลประทาน (2) ผลผลิตสูง (2) เพลี้ยกระโดดสีน้ำตาล (2) Booting stage (1) Chilling temperature (1) Coccinellidae (1) Mais... Tipo do documento Info:eu-repo/semantics/article (4) Collection (1) Journal article (1) PhysicalObject (1) Tesis (1) Ano 2018 (1) 2015 (1) 2014 (2) 2012 (2) 2011 (1) 2010 (1) 2008 (1) 2007 (1) 2002 (1) Mais... País Brazil (4) Mexico (3) Thailand (2) Chile (1) Japan (1) Idioma Inglês (6) Espanhol (3) Thailandês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 11 Primeira ... 1 ... Última Transcriptome responses to heat- and cold-stress in ladybirds (Cryptolaemus montrouzieri Mulasnt) analyzed by deep-sequencing 48 Zhang,Yuhong; Wu,Hongsheng; Xie,Jiaqin; Jiang,Ruixin; Deng,Congshuang; Pang,Hong. BACKGROUND: Changed temperature not only threaten agricultural production, but they also affect individual biological behavior, population and community of many insects, and consequently reduce the stability of our ecosystem. Insect's ability to respond to temperature stress evolved through a complex adaptive process, thus resulting in varied temperature tolerance among different insects. Both high and low extreme temperatures are detrimental to insect development since they constitute an important abiotic stress capable of inducing abnormal biological responses. Many studies on heat or cold tolerance of ladybirds have focused on measurements of physiological and biochemical indexes such as supercooling point, higher/lower lethal temperatures, survival... Tipo: Journal article Palavras-chave: Coccinellidae; Heat tolerance; Cold tolerance; Digital gene expression. Ano: 2015 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602015000100066 Effect of leaf Water potential on cold tolerance of Coffea arabica L. 52 Caramori,Lázara Pereira Campos; Caramori,Paulo Henrique; Manetti Filho,João. Young coffee plants from cultivar Mundo Novo of Coffea arabica were grown without irrigation for 32 consecutive days, to evaluate the effect of leaf water potential on damage caused by low temperatures, under controlled conditions. A wide range of leaf water potentials were evaluated, from - 0.45MPa (wet soil) at the beginning of the experimental period, to - 4.8MPa (severe leaf wilting) at the end. Results showed that under moderate water stress, there was a higher frequency of undamaged plants and lower frequency of severely damaged plants. These results help explain part of the regional variability observed after a frost and stress the importance of new studies associating cold and drought tolerance in coffee. Tipo: Info:eu-repo/semantics/article Palavras-chave: Cold tolerance; Coffee; Leaf water potential; Water stress. Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132002000600006 Alterations in fatty acid composition due to cold exposure at the vegetative stage in rice 61 Cruz,Renata Pereira da; Golombieski,Jaqueline Ineu; Bazana,Maiara Taís; Cabreira,Caroline; Silveira,Taíse Foletto; Silva,Leila Picolli da. Rice is a tropical plant, so cold temperature may be detrimental to its development, depending on the genotype and environmental conditions. Degree of lipid unsaturation has been related to cold tolerance due to its effect on membrane stability. So, the aim of this study was to characterize the fatty acid composition and its alterations due to cold temperature in rice genotypes of diversified origin. Forty-four rice genotypes at the V4 stage were submitted to two temperature conditions: 10°C and 28°C for two days and after this they had their leaves collected for lipid extraction and quantification. Control plants were allowed to regrow until presenting four leaves fully expanded and then were subjected to 10°C for ten days for cold tolerance evaluation.... Tipo: Info:eu-repo/semantics/article Palavras-chave: Oryza sativa L.; Lipid; Linolenic acid; Cold tolerance; Membrane stability; Plant survival. Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202010000300007 Evaluación de dos generaciones de híbridos y progenitores de sorgo tolerante al frío 32 León Velasco, Humberto. En el Colegio de Postgraduados se han formado dos generaciones de híbridos y progenitores de sorgo [Sorghum bicolor (L.) Moench] tolerantes al frío adaptados a los Valles Altos Centrales de México. En 1996 se establecieron cinco experimentos, cuyos objetivos fueron: (a) evaluar la variabilidad genética de las dos generaciones para rendimiento de grano (RG) y otras características; (b) caracterizar la adaptabilidad de los genotipos para RG y precocidad; (c) estimar la aptitud combinatoria general (ACG) en cada generación de líneas progenitoras para RG, peso (PG) y número de granos (NG); (d) comparar el comportamiento per se y la ACG de las líneas; (e) estimar la heterosis y heterobeltiosis de los híbridos para esas tres variables; y (f) comparar... Palavras-chave: Orghum bicolor L. Moench; Aptitud combinatoria; Heterosis; Híbridos; Tolerancia al frío Sorghum bicolor L. Moench; Combining ability; Heterosis; Hybrids; Cold tolerance. Ano: 2012 URL: http://hdl.handle.net/10521/816 Evaluación de dos generaciones de híbridos y progenitores de sorgo tolerante al frío 32 León Velasco, Humberto. En el Colegio de Postgraduados se han formado dos generaciones de híbridos y progenitores de sorgo [Sorghum bicolor (L.) Moench] tolerantes al frío adaptados a los Valles Altos Centrales de México. En 1996 se establecieron cinco experimentos, cuyos objetivos fueron: (a) evaluar la variabilidad genética de las dos generaciones para rendimiento de grano (RG) y otras características; (b) caracterizar la adaptabilidad de los genotipos para RG y precocidad; (c) estimar la aptitud combinatoria general (ACG) en cada generación de líneas progenitoras para RG, peso (PG) y número de granos (NG); (d) comparar el comportamiento per se y la ACG de las líneas; (e) estimar la heterosis y heterobeltiosis de los híbridos para esas tres variables; y (f) comparar... Tipo: Tesis Palavras-chave: Sorghum bicolor L. Moench; Aptitud combinatoria; Heterosis; Híbridos; Tolerancia al frío; Doctorado; Genética; Combining ability; Hybrids; Cold tolerance. Ano: 2007 URL: http://hdl.handle.net/10521/1207 Evaluación de dos generaciones de híbridos y progenitores de sorgo tolerante al frío 32 León Velasco, Humberto. En el Colegio de Postgraduados se han formado dos generaciones de híbridos y progenitores de sorgo [Sorghum bicolor (L.) Moench] tolerantes al frío adaptados a los Valles Altos Centrales de México. En 1996 se establecieron cinco experimentos, cuyos objetivos fueron: (a) evaluar la variabilidad genética de las dos generaciones para rendimiento de grano (RG) y otras características; (b) caracterizar la adaptabilidad de los genotipos para RG y precocidad; (c) estimar la aptitud combinatoria general (ACG) en cada generación de líneas progenitoras para RG, peso (PG) y número de granos (NG); (d) comparar el comportamiento per se y la ACG de las líneas; (e) estimar la heterosis y heterobeltiosis de los híbridos para esas tres variables; y (f) comparar... Palavras-chave: Orghum bicolor L. Moench; Aptitud combinatoria; Heterosis; Híbridos; Tolerancia al frío Sorghum bicolor L. Moench; Combining ability; Heterosis; Hybrids; Cold tolerance. Ano: 2012 URL: http://hdl.handle.net/10521/910 Detection of a novel quantitative trait locus for cold tolerance at the booting stage derived from a tropical japonica rice variety Silewah 19 Mori, Masahiko; Onishi, Kazumitsu; Tokizono, Yoshiro; Shinada, Hiroshi; Yoshimura, Toru; Numao, Yoshinori; Miura, Hideho; Sato, Takashi; 大西, 一光; 三浦, 秀穂. Cold stress at the booting stage in rice induces spikelet sterility because of aberrant microspore development, which often seriously damages seed production. Some breeding lines with high cold tolerance were developed by using tropical japonica variety Silewah as a donor of cold tolerance; however, the genetic factors that confer cold tolerance of this variety have not been comprehensively analyzed. In this study, phenotypic and molecular characterization of novel cold-tolerant strains derived from crosses with Silewah was performed to identify quantitative trait loci (QTLs) responsible for cold tolerance. Molecular marker analysis revealed that 2 cold-tolerant strains carried chromosomal segments of Silewah at the same genomic regions on chromosomes 3, 4... Palavras-chave: Oryza sativa; Cold tolerance; Booting stage; QTL; Phenotypic selection; Marker-assisted selection; Exotic germplasm. Ano: 2011 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3040 Genetic parameters and performance of sugarcane families under cold stress in the South of Brazil 86 Verissimo,Mario Alvaro Aloisio; Oliveira,Ricardo Augusto de; Silva,Sérgio Delmar dos Anjos e; Daros,Edelclaiton; Härter,Adílson. Abstract: The objective of this work was to estimate the genetic parameters for the performance prediction of sugarcane (Saccharum spp.) families under natural cold stress, in Southern Brazil, and to identify the best combinations of parents aiming at the selection for tolerance to cold. Fifty-three full-sib families were evaluated in an incomplete block design, with five replicates per family, in the municipality of Pelotas, in the state of Rio Grande do Sul, Brazil. Harvest occurred in August 2013, nine months after planting and after cold spells with negative temperatures down to -2.2ºC. Statistical analyses, performed with the mixed model methodology, detected significant differences among families. Heritability estimates among progeny means were... Tipo: Info:eu-repo/semantics/article Palavras-chave: Saccharum; Cold tolerance; Plant breeding; Selection. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000500583 Inheritance of pinacle exsertion in rice 63 Cruz,Renata Pereira da; Milach,Sandra Cristina Kothe; Federizzi,Luiz Carlos. Incomplete panicle exsertion is one of the symptoms of cold injury at the reproductive stage of the rice plant (Oryza sativa L.), which damages grain yield and raises disease incidence. For this reason, panicle exsertion is a better indicator of cold tolerance under field conditions than spikelet sterility, which may also be affected by other climatic factors. This work studies the variability of degree of panicle exsertion in rice, under the Southern Brazilian environmental conditions and determines the inheritance and heritability of this trait. Four rice genotypes of different cool temperature reactions at the reproductive stage were crossed and field evaluated, with the F2 generation, in relation to the degree of panicle exsertion and spikelet... Tipo: Info:eu-repo/semantics/article Palavras-chave: Oryza sativa L.; Chilling temperature; Cold tolerance; Complete panicle exsertion; Heritability. Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162008000500009 PSL05101-93-1-3-2 : ข้าวนาชลประทานสายพันธุ์ดีเด่น 106 Benjawan Phonkhod; Acharaporn Na Lampang Noenplab; Phamorn Pattawatang; Saang Chirinte; Sumalee Sangprem; Wilai Palawisut; Pornsuree kanjana; Jittichai Anawong; Wanakorn Intrarastit; Cawaporn Phumchoe; Duangorn Ariyapruek; Preamkamon Moonnilta; Sard Toktiwa; Chuanchom Deerusamee; Mungmat Wangka; Doungporn Vitoonjit; Chairat Chanoo; Doungkamon Boonbchuay; Jaturong Pipatpiriyanon; Wiphavadee Chamnan; Nayakorn Sanguakaen; Wantana Sriratanasak; Witchuda Rattanakarn; Rasamee Dhitikiattipong; Suradet Palawisut. Irrigated paddy fields are the rice growing areas having high yield potential. Two significant factors enhancing high yield are the well-adapted variety and appropriate management. PSL05101-93-1-32 is a promising rice line derived from the 3-way cross of PSL00508-3-1-1-4/IR66738-118-1-2//IR67966-188-2-2-1 in 2005. It has as high yield potential as 965 kg/rai (6.03 t/ha). The average grain yield is 730 kg/rai, greater than PSL2, CNT1 and RD47 varieties by 14, 13 and 7%, respectively. The maturity is 115 days after sowing by transplanting method. Plant height is 83-90 cm. This promising line is a non-glutinous long grain rice having straw-color husk. The paddy rice seed dimension is 10.4×2.61×2.10 mm in width × length × thickness, respectively. The paddy... Tipo: Collection Palavras-chave: Irrigated rice; High yield; Brown planthopper; Cold tolerance; Long grain class 1; นาชลประทาน; ผลผลิตสูง; เพลี้ยกระโดดสีน้ำตาล; ทนหนาว; ข้าวสารเมล็ดยาวชั้น 1. Ano: 2014 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5895 ข้าวนาชลประทานข้าวสายพันธุ์ดีเด่น PSL05101-93-1-3-2 106 Benjawan Phonkhod; Acharaporn Na Lampang Noenplab; Phamorn Pattawatang; Sa-ang Chirinte; Sumalee Sangprem; Wilai Palawisut; Pornsuree Kanjana; Wanakorn Intrarastit; Cawaporn Phumchoey; Duang-orn Ariyapruek; Sard Toktiwa; Chuanchom Deerusamee; Mungmat Wangka; Duangporn Withoonjit; Chairat Channoo; Duangkamon Boonchuay; Jaturong Pipatpiriyanon; Preamkamon Moonnilta; Wiphavadee Chamnan; Nayakorn Sa-nguakaew; Wantana Sriratnasak; Wichuda Rattanakarn; Rasamee Dhitikiattipong; Suradet Palawisut. Irrigated paddy fields are the rice growing areas having high yield potential.Two significant factors enhancing high yield are the well-adapted variety and good in rice production management. PSL05101-93-1-32 is a promising rice line derived from the 3-way cross of PSL00508-3-1-1-4/IR66738-118-1-2//IR67966-188-2-2-1 in 2005. It had as high yield as 965 kg/rai (6.03t/ha).The average grain yield was 730 kg/rai which was greater than PSL2, CNT1 and RD47 by 14, 13 and 7%, respectively. The maturity was 115 days after sowing by transplanting method. Plant height was 83-90 cm. This promising line is a non-glutinous long grain rice having straw-color husk. The paddy rice seed dimensions was 10.4×2.61×2.10 mm. by width x length x thickness, respectively.The paddy... Tipo: PhysicalObject Palavras-chave: Irrigated rice; High yield; Brown planthopper; Cold tolerance; Long grain; Plant breeding; Hybrid varieties; Rice; Rice characters; Cold resistance; Pests resistance; นาชลประทาน; ผลผลิตสูง; เพลี้ยกระโดดสีน้ำตาล; ความทนทานต่อความเย็น; ข้าวสารเมล็ดยาวชั้น 1; ข้าว; สายพันธุ์ลูกผสม; การปรับปรุงพันธุ์; การคัดเลือกพันธุ์; ลักษณะประจำพันธุ์; ลักษณะเมล็ดพันธุ์; คุณลักษณะทางประสาทสัมผัส; คุณภาพผลผลิต; ความต้านทานแมลงศัตรูพืช. Ano: 2014 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5687 Registros recuperados: 11 Primeira ... 1 ... Última

Empresa Brasileira de Pesquisa Agropecuária - Embrapa Todos os direitos reservados, conforme Lei n° 9.610 Política de Privacidade Área restrita		Embrapa Parque Estação Biológica - PqEB s/n° Brasília, DF - Brasil - CEP 70770-901 Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco