نتایج جستجو برای: germination and seedling growth

تعداد نتایج: 16936904  

Journal: :Zeitschrift fur Naturforschung. C, Journal of biosciences 2007
Saban Kordali Ahmet Cakir Sunay Sutay

Monoterpenes, the chemical constituents of essential oils found in plants, are known biologically active compounds. The present study was conducted to investigate the inhibitory effects of 30 monoterpenes including monoterpene hydrocarbons and oxygenated monoterpenes on seed germination and seedling growth of Amaranthus retroflexus, Chenopodium album and Rumex crispus under laboratory condition...

Journal: :Applied and environmental microbiology 1976
G E Schuman T M McCalla

Composted and fresh beef cattle manure samples were extracted with distilled water, acetone, methanol, 2 N sodium hydroxide, 2 N hydrochloric acid, and ether. Bioassay techniques, using the extracts, showed that composted manure extracts had limited effect on seed germination and seeding development of wheat and sorghum. All the extracts of fresh manure, other than distilled water, retarded ger...

2013
Michael J. O’Brien Christopher D. Philipson John Tay Andy Hector

Climate change induced alterations to rainfall patterns have the potential to affect the regeneration dynamics of plant species, especially in historically everwet tropical rainforest. Differential species response to infrequent rainfall may influence seed germination and seedling establishment in turn affecting species distributions. We tested the role of watering frequency intervals (from dai...

2011
Guilan Gao Shengchun Zhang Chengfeng Wang Xiang Yang Yaqin Wang Xiaojun Su Jinju Du Chengwei Yang

The phytohormone abscisic acid (ABA) and the lipoxygenases (LOXs) pathway play important roles in seed germination and seedling growth and development. Here, we reported on the functional characterization of Arabidopsis CPR5 in the ABA signaling and LOX pathways. The cpr5 mutant was hypersensitive to ABA in the seed germination, cotyledon greening and root growth, whereas transgenic plants over...

Journal: :محیط زیست طبیعی 0
محمدرضا طاطیان استادیار دانشگاه علوم کشاورزی و منابع طبیعی ساری رضا تمرتاش کارشناس ارشد دانشگاه علوم کشاورزی و منابع طبیعی ساری سارا حشمتی کارشناس ارشد دانشگاه علوم کشاورزی و منابع طبیعی ساری حمیدرضا سعیدی گراغانی کارشناس ارشد دانشگاه علوم کشاورزی و منابع طبیعی ساری

due to the use of secale montanum for different rangelands reclamation across the country, management of these ecosystems need to be aware of its ability to environmental stresses. this research investigated the effect of pollutant element of cu and pb on seed germination and growth of this species in laboratory. therefore, the effect of five treatments (control, 50, 100, 150, 200ppm) of pb (no...

Journal: :علوم گیاهان زراعی ایران 0
بابک ربیعی مهدی بیات

to evaluate the effects of accelerated aging and cold stress on seed germination and seedling growth indices in five oilseed rape cultivars (hyola330, hyola401, hyola420, syn3 and pr401/15e), an experiment was carried out in a completely randomized design of three replications. results indicated that the cultivars were significantly different in germination percentage, seed vigour, germination ...

Journal: :journal of agricultural science and technology 2014
l. l. song h. n. zhang h. q. zhao y. l. jiang m. f. hou

taxus chinensis var. mairei is a rare and endangered medicinal plant species distributed in china. in order to promote fast propagation and preserve the natural resources, conditions for in vitro germination and seedling development of embryos of t. chinensis var. mairei from anhui or zhejiang were investigated. results showed that in vitro germination rate of excised embryos cultured under 14 ...

2016
Renwu Zhou Rusen Zhou Xianhui Zhang Jinxing Zhuang Size Yang Kateryna Bazaka Kostya (Ken) Ostrikov

Atmospheric-pressure N2, He, air, and O2 microplasma arrays have been used to investigate the effects of plasma treatment on seed germination and seedling growth of mung bean in aqueous solution. Seed germination and growth of mung bean were found to strongly depend on the feed gases used to generate plasma and plasma treatment time. Compared to the treatment with atmospheric-pressure O2, N2 an...

Journal: :تولید گیاهان زراعی 0

environmental conditions including metrological parameters (precipitation, temperature, humidity and etc.) various stresses and nutrition, could affect  germination and  seeds vigor during of development, ripping and leven after harvesting of soybean seed. for this, experiments of completely randomized design ( as nested)by four replications were performed in seed laboratory of gorgon universit...

Gaining insights into the germination and emergence patterns of weeds as well as the factors which have an impact on these patterns is beneficial for weeds management programs. In order to investigate the effect of temperature, waterlogging and salinity on germination and emergence of common lambsquarters, three separate experiments were conducted, adopting a completely randomized design with f...

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