Genotypic variation in the germination of common bean in response to cold temperature stress

Zaiter, H. Z.; Baydoun, Elias; Sayyed-Hallak, M.

doi:10.1007/bf00033945

Cited by 14 publications

(14 citation statements)

References 16 publications

(18 reference statements)

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“…Much research on bean germination under controlled cold temperatures has used constant temperature regimes, but alternating temperatures appear to be a strong signal for inducing germination (e.g., Zaiter et al 1994). The goal of this study was to identify genotypes that had both the most rapid and the highest percentage germination under the lowest temperature.…”

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confidence: 99%

“…A range of base temperatures is observed over a wide genetic base, but even the few genotypes that are able to germinate under the coldest temperatures (10 to 8°C) have decreased germination rates and only a small proportion of seed fully germinate. The base temperatures from genotypes of many market classes are: 8°C (Dickson 1971;White and Montes 1993;Zaiter et al 1994); 9°C (Kooistra 1971); 10°C (Dickson and Boettger 1984;Scully and Waines 1988); and 12°C (Otubo et al 1996). The market classes used included Great Northern, Pinto, Black, Red Kidney, Carioca, Small White, and Navy.…”

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Germination of common bean under constant and alternating cool temperatures

Nleya¹,

Ball²,

Vandenberg³

2005

Can. J. Plant Sci.

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Nleya, T., Ball, R. A. and Vandenberg, A. 2005. Germination of common bean under constant and alternating cool temperatures. Can. J. Plant Sci. 85: 577-585. In western Canada, common bean is often sown in cool soils, which causes poor germination and uneven stand establishment. A major goal in bean breeding is to find and assess cold-tolerant parental material. Seed germination and emergence of 12 diverse common bean genotypes, which included adapted Prairie cultivars, were evaluated in petri dishes under 15 alternating and five constant temperature regimes. Cumulative heat hours to maximum germination were calculated for all 12 genotypes using a base temperature of 9°C. Six genotypes were tested for emergence in soil in growth chambers at two temperature and three soil moisture regimes. In petri tests, optimal temperatures for bean germination were 16/16°C (day/night temperature) or higher. G8823, G9345 and AC Polaris germinated below 10°C, and all genotypes germinated at 12°C or higher. Rapid germinating genotypes with >0.09 cumulative heat hours per percentage germination were G8823, G9345 and AC Polaris, which took the least number of cumulative heat hours to germinate (<1100 heat hours). CDC Pinnacle was the highest representative of the medium germination rate group, having 1170 heat hours to germination. Emergence and plant development in soil were decreased by low moisture availability or cooler temperatures. Genotypes with >80% emergence in soil were CDC Crocus, CDC Nighthawk, CDC Pinnacle and CDC Polar Bear. Differing genotype rankings in soil versus petri dishes demonstrated that germination in controlled cool conditions may still be complicated by dormancy, moisture availability, seed coat thickness, imbibition rate and differing viabilities of seed lots. G8823, G9345 and AC Polaris are promising genotypes for developing cultivars that can germinate under cool temperatures (<10°C) at the highest rate. 85: 577-585. Dans l'ouest du Canada, on sème souvent le haricot sur un sol froid, ce qui nuit à la germination et engendre des peuplements inégaux. Un des principaux objectifs de l'hybridation consiste à trouver et à évaluer du matériel génétique rustique. Les auteurs ont étudié la germination et la levée des semences de 12 génotypes de haricot, y compris des cultivars acclimatés aux Prairies, dans des boîtes de Pétri sous 15 régimes à température variable et cinq autres à froid constant. Ils ont établi le nombre cumulatif d'heures permettant d'obtenir la germination maximale des 12 génotypes à une température de base de 9°C. Ils ont ensuite testé la levée de six génotypes dans un phytotron à deux températures et à trois teneurs en eau du sol. Dans les boîtes de Pétri, la température optimale pour la germination des graines est de 16/16°C (température diurne/nocturne) ou davantage. G8823, G9345 et AC Polaris germent en dessous de 10°C mais les autres génotypes demandent au moins 12°C. G8823, G9345 et AC Polaris sont des génotypes à germination rapide qui accumulent plus de 0,09 heure de chaleur par pour...

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confidence: 99%

mentioning

confidence: 99%

Germination of common bean under constant and alternating cool temperatures

Nleya¹,

Ball²,

Vandenberg³

2005

Can. J. Plant Sci.

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“…Injúria por frio é uma desordem fisiológica que se desenvolve em algumas plantas tropicais e subtropicais quando expostas à temperatura abaixo de 10 a 12 °C, mas não congelantes (Sabehat et al, 1996). Como sintomas de injúria por temperatura podem ser citados germinação e crescimento reduzido e diminuição da viabilidade (Zaiter et al, 1994;Rab e Salveit, 1996).…”

Section: Introductionunclassified

“…Em face dessa característica da tribo Phaseoleae, em particular do gênero Phaseolus, diversos estudos (Braak e Koistra, 1975;Hardwick e Andrews, 1980;Zaiter et al, 1994) tem sido realizados no sentido de se desenvolverem linhagens tolerantes a baixas temperaturas -para regiões de clima frio -ou para temperaturas consideradas supra ótimas -para regiões sujeitas à temperaturas elevadas. Essa última condição é particularmente marcante em regiões tropicais, que incluem a maior proporção do território brasileiro, e onde não é rara a temperatura ao nível do solo exposto atingir valores da ordem de 45 -50°C.…”

Section: Introductionunclassified

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Tolerância cruzada induzida por choque térmico na germinação de semente de feijão

Custódio

Vivan

Nunes

et al. 2009

Rev. bras. sementes

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RESUMO -Estresse pode ser definido como um fator externo, que exerce influência desvantajosa sobre a planta. Em regiões tropicais, as culturas agrícolas sofrem estresse abiótico principalmente por períodos de deficiência de água e altas temperaturas. A tolerância cruzada permite as plantas se aclimatarem a uma gama de diferentes estresses após exposição a um estresse específico. O objetivo neste trabalho foi avaliar a tolerância ao estresse hídrico durante a germinação das sementes de feijão sob influência da tolerância cruzada induzida por choque térmico. As sementes de feijão cultivar 'IAPAR 81' foram submetidas ao processo de embebição, em substrato papel umedecido com água pura sob temperatura de 20ºC por 24 horas. A seguir, parte foi mantida nessa temperatura e parte transferida para o choque frio por 24horas a 7ºC no ensaio 1 e 13ºC no ensaio 2 e outra parte para o choque quente por 24 horas a 38oC no ensaio 1 e 33oC no ensaio 2, sem troca do substrato. Tanto as sementes que passaram pelo choque como as que não passaram (controle) foram transferidas para substrato papel simulando diferentes potenciais hídricos, 0; -0,6; -0,9 e -1,2MPa, no ensaio 1 e 0;-0,3; -0,6; -0,9 e 1,2MPa no ensaio 2, induzidos por manitol nas seguintes concentrações: 0; 22,29; 44,58; 66,87 e 89,17 g.L -1 . Os tratamentos foram avaliados através da porcentagem de germinação, plântulas anormais, sementes mortas e avaliações do desenvolvimento (massa seca da parte aérea, massa seca de raiz, massa seca total e relação raiz/parte aérea). O melhor desempenho das sementes que passaram por choque, de 7oC por 24h ou de 33oC por 24h, à restrição hídrica no início do desenvolvimento, permite afirmar que ocorre indução de tolerância cruzada e que esta pode ser induzida no início do processo de embebição em sementes de feijão.Termos para indexação: choque frio, choque quente, deficiência hídrica, Phaseolus vulgaris L. CROSS TOLERANCE INDUDED BY TERMIC SHOCK IN THE BEAN SEED GERMINATIONABSTRACT -Stress could be defined as an external factor that may have some disadvantageous influence on the plant. In tropical regions, crops suffer abiotic stress especially due to water deficit and high temperature. Cross tolerance allows the plants to be acclimated after a short exposure to a specific stress. The objective of this study was water stress tolerance during bean seed germination influenced by heat shock induced cross tolerance. Seed of the common bean cv 'IAPAR 81' were submitted to imbibition in substrate paper with pure water at 20ºC for 24h. One third of the seeds 1 Submetido em 08/08/2007. Aceito para publicação em 13/01/2009. Parte da Dissertação de Mestrado do primeiro autor apresentada a UNOESTE.2 Eng. Agr., pós graduando do Programa de Pós-Graduação em Agronomia

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Grain Legumes

2015

Handbook of Plant Breeding

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The field of plant breeding covers a broad range of different species and categories of plants. While there are many techniques and issues that are similar across these species, many more are unique to each genus.The Handbook of Plant Breeding is organized by major crop categories and includes the most up-to-date molecular techniques being used. It will serve as a resource for plant breeding laboratories in both the university and industrial setting.More information about this series at

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Genotypic variation in the germination of common bean in response to cold temperature stress

Cited by 14 publications

References 16 publications

Germination of common bean under constant and alternating cool temperatures

Germination of common bean under constant and alternating cool temperatures

Tolerância cruzada induzida por choque térmico na germinação de semente de feijão

Grain Legumes

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