نتایج جستجو برای: seedling raising method

تعداد نتایج: 1668952  

2008
Robert Orth Scott Marion Steven Granger Michael Traber

PROBLEM: Eelgrass (Zostera marina) seeds are being used in a variety of both smalland large-scale restoration activities and have been successfully used to initiate recovery of eelgrass in the Virginia seaside coastal lagoons, which lost eelgrass in the 1930s ‘wasting disease’ pandemic (Orth et al. 2006a). However, a major bottleneck with the use of seeds has been the relatively low rate of see...

2001
Kordula De Kuthy Detmar Meurers

In (1a), the transitive verb verkaufen has been fronted, leaving its complement, the NP das Pferd, behind. In (1b), the AP stolz is topicalized without its PP argument auf seine Kinder. And in (1c), the NP ein Buch has been fronted, leaving its PP complement über Syntax behind. In De Kuthy and Meurers (1998, 1999b) we showed that such cases of partial constituent fronting can successfully be an...

Journal: :Bioresource technology 2003
Kassahun Embaye Lars Christersson Stig Ledin Martin Weih

Seedling emergence and subsequent survival and growth are vital for natural forest restoration or plantation establishment by means of seeds. Such information is lacking for the African bamboo species. Two experiments were carried out in a greenhouse to evaluate the influence of seed orientation and sowing depth of the lowland bamboo Oxytenanthera abyssinica on seedling emergence, survival and ...

2007
Thomas F Geary

When eucalyptus trees are felled, new stems often grow from the stumps to produce another crop of trees. This new crop is called the coppice crop to distinguish it from the seedling crop. Coppice crops can be important in growing eucalypts profitably. Replanting costs are saved and coppice crop rotations are usually shorter than those of seedling crops, because coppice stems grow faster than se...

2001
GUILLERMO IBARRA-MANRÍQUEZ MIGUEL MARTÍNEZ RAMOS KEN OYAMA

Seedling morphology of 210 species (173 trees and 37 lianas) was studied from a community perspective to identify major patterns of seedling functional types in a Mexican rain forest. Five types of seedlings were distinguished: cryptocotylar with reserve storage or absorption cotyledons (epigeal [CER] and hypogeal [CHR]), phanerocotylar epigeal, either with photosynthetic cotyledons (PEF) or wi...

2017
Anpeng Zhang Chaolei Liu Guang Chen Kai Hong Yang Gao Peng Tian Youlin Peng Bin Zhang Banpu Ruan Hongzhen Jiang Longbiao Guo Qian Qian Zhenyu Gao

Seedling vigor is an important agricultural trait as direct-seeded rice technology becomes widely applied. In order to investigate the genetic mechanisms underlying seedling vigor in rice, seeds of 132 recombinant inbred lines (RILs) derived from 93-11 and PA64s, harvested from Lingshui and Hangzhou were cultivated in the nutrient solution, and four indices for seedling vigor were measured incl...

Journal: :international journal of advanced biological and biomedical research 0
mohammad hossein ghorbani department of agronomy, gorgan university of agricultural sciences and natural resources, iran akram pasandideh tashakori former m.sc student of department of plant breeding and biotechnology, gorgan university of agricultural sciences and natural resources, iran

this study was conducted at the gorgan university of agricultural sciences and natural resources farm, iran, golestan province with about 600 mm annual rainfall in order to evaluate the effect of different sowing dates on azivash (corchorusolitorius) seed quality, using a randomized complete block design with three replications on 2013. treatments were four sowing dates such as may 5, jun 5, ju...

Journal: :journal of ornamental plants 2015
h. mahmoodzadeh m. nabavi h. kashefi

an investigation was initiated to examine the effects of nanoscale titanium dioxide particles on plant growth and development. in view of the widespread cultivation of canola in iran and in other parts of the globe and in view of the potential influence of titanium on its growth, this plant was chosen as the model system. canola seeds were separately treated with different concentrations of nan...

2006

INTRODUCTION In the southern United States, chemicals are an integral part of the management of bare-root nurseries. The rationale for using chemicals is based on economics as they can reduce hand labor, improve the use of valuable seed, and increase seedling performance. The cost of all chemicals associated with loblolly pine seedling production averages less than 0.2 cent per seedling. The co...

Journal: :Agronomy 2023

In response to the problems of low straw utilization efficiency and poor returning effect in Northeast China, this paper takes rice containing cow dung as experimental material, according characteristics lignin glass transformation proposes a new method prepare biomass seedling trays. The trays prepared by can meet needs corn cultivation transplantation. To study molding mechanism, scanning ele...

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