نتایج جستجو برای: seed germination and seed physiology

تعداد نتایج: 16848236  

Journal: :Journal of experimental botany 2011
Karin Weitbrecht Kerstin Müller Gerhard Leubner-Metzger

Most plant seeds are dispersed in a dry, mature state. If these seeds are non-dormant and the environmental conditions are favourable, they will pass through the complex process of germination. In this review, recent progress made with state-of-the-art techniques including genome-wide gene expression analyses that provided deeper insight into the early phase of seed germination, which includes ...

جعفری, پیمان, جلالی, امیر هوشنگ, عرب سلمانی, کریم,

  In order to study different methods of separating the seeds of cantaloupe (Cucumis melo L. var. reticualus) from the sorrounding fleshy tissues (placenta) and the effects of various treatments on seed germination characteristics, an experiment was conducted in Agricultural and Natural Research Center of Varamin, Iran, in 2009. In this research, which was based on a randomized complete blocks ...

2013

ABSTRACT: Seed priming was used in wheat seeds to increase germination characteristics and tolerance on stress exposure. Wheat seeds were treated with salicylic acid and gibberellin. After 8 days our results showed that, seed priming treatments significantly (p≤ 0.01) affected germination percentage, normality seedling percentage, germination index and seedling length. Seed priming with salicyl...

2017
Shi-Cheng Shao Kevin S. Burgess Jennifer M. Cruse-Sanders Qiang Liu Xu-Li Fan Hui Huang Jiang-Yun Gao

Due to increasing demand for medicinal and horticultural uses, the Orchidaceae is in urgent need of innovative and novel propagation techniques that address both market demand and conservation. Traditionally, restoration techniques have been centered on ex situ asymbiotic or symbiotic seed germination techniques that are not cost-effective, have limited genetic potential and often result in low...

2008
Adam Moolna

Native forest in Mauritius has been reduced to patchy degraded fragments and the extinction risk of constituent rare endemic plants is compounded by poor seed germination (Page & D’Argent, 1997; Safford, 1997; Nyhagen et al., 2005). Endemic fruiting plants evolved alongside a number of ecologically important large frugivores that are now extinct, such as the dodo (Raphus cucullatus L.) and two ...

2015
Brian A Pace Helen M Alexander Jason D Emry Kristin L Mercer

Domestication has resulted in selection upon seed traits found in wild populations, yet crop-wild hybrids retain some aspects of both parental phenotypes. Seed fates of germination, dormancy, and mortality can influence the success of crop allele introgression in crop-wild hybrid zones, especially if crop alleles or crop-imparted seed coverings result in out-of-season germination. We performed ...

2018
Shaochun Xu Pengmei Wang Yi Zhou Xiaomei Zhang Ruiting Gu Xujia Liu Bingjian Liu Xiaoyue Song Shuai Xu Shidong Yue

Seagrasses are important components of global coastal ecosystems, and the eelgrass Zostera marina L. is widely distributed along the Atlantic and Pacific coasts in the temperate northern hemisphere, but limited datum related to the contribution of sexual reproduction to population recruitment have been reported. This study aimed to understand eelgrass sexual reproduction and population recruitm...

Journal: :پژوهش های تولید گیاهی 0

the main objective of this study was using of canonical correlation analysis (cca) to find relations between 15 different variables of seed emergence and seedling growth related characteristics of seven important crop that were classified in three groups. the studied groups of variables were included physical characteristics (seed weight, seed length, seed density, water absorption and water co...

Seed aging increases activity of reactive oxygen molecules and antioxidant enzymes have a key role against increased oxidative stress which is caused by free radicals. Effect of seed priming on increasing of these enzymes activity and its impacts on seed germination characteristics of deteriorated milk thistle seeds was studied in University of Mohaghegh Ardabili in 2013. Factoral experiment ba...

Mehran Sharafizade Razieh Danaiee Far,

BACKGROUND: Seed aging is an important problem in developing countries which seeds stored in inappropriate condition. OBJECTIVES: Current research was carried out to study the effect of seed aging on quantitative parameters of wheat seeds (Chamran cultivar). METHODS: Experiment was carried out based on randomized complete block desi...

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