نتایج جستجو برای: seed management

تعداد نتایج: 924849  

Journal: :Seed Science and Technology 2023

Abstract Healthy seeds play an important role in growing a healthy crop. Seed health testing is performed by detecting the presence or absence of insect infestation and seed-borne diseases caused fungi, bacteria, viruses. The most detrimental effect pathogens contamination previously disease-free areas spread new diseases. Sowing contaminated infected not only spreads but can also reduce yields...

2013
S. K. DWIVEDI

Seed health testing by studying the seed-borne fungi of soybean seeds is an important step in the management of the seed-borne diseases. In the present study seed-borne fungi was studied by using agar plate method. A number of seed-borne fungal species was isolated from the agar plate. These seed-borne fungal sps. were Aspergillus niger, A. flavus, A. fumigatus, Chaetomium globosum, Curvularia ...

2017
Qi Li Guiping Hu Talukder Zaki Jubery Baskar Ganapathysubramanian

Farmland management involves several planning and decision making tasks including seed selection and irrigation management. A farm-level precision farmland management model based on mixed integer linear programming is proposed in this study. Optimal decisions are designed for pre-season planning of crops and irrigation water allocation. The model captures the effect of size and shape of decisio...

Journal: :Journal of economic entomology 2008
Jeffrey D Bradshaw Marlin E Rice John H Hill

Cerotoma trifurcata Förster (Coleoptera: Chrysomelidae) and Bean pod mottle virus (Comoviridae) (BPMV) both can reduce yield and seed quality of soybean, Glycine max (L.) Merr. Field experiments were conducted to evaluate the effects of systemic, seed-applied, and foliar-applied insecticides for the management of this pest complex at three locations in central, northeastern, and northwestern Io...

2007
R. J. Rose

The size and composition of the seed bank of a rare species (Erica ciliaris L.) was analysed. E. ciliaris hybridizes with a common relative in southern England (Erica tetralix). The seed banks of these co-occurring species were measured at a number of sites with a range of vegetation types and different management histories. Additional sets of samples were taken from forestry plantations on for...

Journal: :آب و خاک 0
علی عبدزاد گوهری ابراهیم امیری کوروش مجد سلیمی

abstract in order to investigate the effect of irrigation and nitrogen fertilizer, on yield peanut plant, with furrow method of irrigation and water use efficiency (wue) in management to create a proper and better production, split plot experiment was over taken as in complete randomize blocks with three replications and main plot with 6, 12 and 18 day interval irrigation and no irrigation and ...

2014
Matthew Brooks Steven Ostoja Robert Klinger Marcia K. McNutt

.............................................................................................................................................................................. 1 Background and Purpose ................................................................................................................................................. 2 Objectives and hypotheses ..........................

2006

Weed communities in agronomic fields are dominated by annual species. Summer annuals initiate growth each spring from seeds found in the upper soil profile (Figure 1). In most fields, a small percentage of the emerging plants survive and contribute new seeds to the soil seedbank. Historically, most research of the annual weed life cycle has focused on seed dormancy and emergence (A), effect of ...

2017
Adam T Cross Maria Paniw Fernando Ojeda Shane R Turner Kingsley W Dixon David J Merritt

Fire is a topical issue in the management of many ecosystems globally that face a drying climate. Understanding the role of fire in such ecosystems is critical to inform appropriate management practices, particularly in the case of rare and ecologically specialized species. The Mediterranean heathlands are highly fire-prone and occur in a biodiversity hotspot increasingly threatened by human ac...

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