نتایج جستجو برای: dormancy of minituber

تعداد نتایج: 21164851  

ژورنال: یافته 2012
سمیعی, کامران, ضابطی, سید محمود, عیسوند, حمیدرضا , اسماعیلی, احمد , رضائی نژاد, عبدالحسین ,

Background : Myrtle is a shrub and has a many applications in medicinal industries. Although the myrtle can reproduce by cutting, its reproduction by seed will bring more advantages such as economic advantages and better regeneration in nature or agriculture. Regarding to the difficult seed germination of this plant and also the need for extension the cultivation, this study was conducted for d...

Journal: :Antimicrobial agents and chemotherapy 2012
Franka Teuscher Nanhua Chen Dennis E Kyle Michelle L Gatton Qin Cheng

The appearance of Plasmodium falciparum parasites with decreased in vivo sensitivity but no measurable in vitro resistance to artemisinin has raised the urgent need to characterize the artemisinin resistance phenotype. Changes in the temporary growth arrest (dormancy) profile of parasites may be one aspect of this phenotype. In this study, we investigated the link between dormancy and resistanc...

2013
Louis G. Boddy Kent J. Bradford Albert J. Fischer

Echinochloaoryzicola(syn.E. phyllopogon) is an exotic weed of California rice paddies that has evolved resistance to multiple herbicides. Elimination of seedlingsthroughcertain weed control methods can limit the spread of this weed, but is contingent on accurate predictions of germination and emergence timing, which are influenced by seed dormancy levels.In summer annuals, dormancy can often be...

Journal: :Annals of botany 2008
Rieks D Van Klinken Bert Lukitsch Carly Cook

BACKGROUND AND AIMS Parkinsonia aculeata (Caesalpinaceae) is a perennial legume with seeds that have hard-seeded (physical) dormancy and are potentially very long-lived. Seed dormancy is a characteristic that can both help maximize the probability of seedling establishment and spread the risk of recruitment failure across years (bet-hedging). In this study, dormancy-release patterns are describ...

Journal: :Annals of botany 2006
Micha Ofir Jaime Kigel

BACKGROUND AND AIMS The timing of flowering and summer dormancy induction plays a central role in the adaptation of Mediterranean geophytes to changes in the length of the growth season along rainfall gradients. Our aim was to analyse the role of the variation in the responses of flowering and summer dormancy to vernalization, daylength and growth temperature for the adaptation of Poa bulbosa, ...

2017
Irene Murgia Piero Morandini

The understanding of seed dormancy, germination and longevity are important goals in plant biology, with relevant applications for agriculture, food industry and also human nutrition. Reactive Oxygen Species (ROS) are key molecules involved in the release of dormancy, when their concentrations fall within the so called 'oxidative window.' The mechanisms of ROS distribution and sensing in seeds,...

Journal: :The American naturalist 2006
R G Lalonde B D Roitberg

Extended dormancy in a population is evolutionarily costly unless some variance in season-to-season fitness (usually driven by variance in environmental quality) makes bet hedging useful. Consequently, dormancy in a population is usually accepted as evidence of environmental variance. Using a Ricker-type model with heritable variation in dormancy, we show that this need not be so. Intrinsic pop...

Journal: :Plant physiology 2000
I Debeaujon K M Léon-Kloosterziel M Koornneef

The testa of higher plant seeds protects the embryo against adverse environmental conditions. Its role is assumed mainly by controlling germination through dormancy imposition and by limiting the detrimental activity of physical and biological agents during seed storage. To analyze the function of the testa in the model plant Arabidopsis, we compared mutants affected in testa pigmentation and/o...

2011
Fei Liu Hangxiao Zhang Gang Wu Jing Sun Lili Hao Xiaomeng Ge Jun Yu Weiwei Wang

Abscisic acid (ABA) and Gibberellic acid (GA) play key roles in regulating seed dormancy and germination. First, when examining germination of different rice cultivars, we found that their germination timing and dormancy status are rather distinct, coupled with different GA/ABA ratio. Second, we studied genomic sequences of ABA and GA dormancy- and germination-associated genes in rice and disco...

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