نتایج جستجو برای: broomcorn seed

تعداد نتایج: 76536  

2003
Paulo Gonçalves Jim Rice

This research explores the causes of dealer demand amplification leading to a high volume of seed returns in a typical agribusiness supply chain. Seed production occurs months in advance of grower demand, resulting in a limited supply of specific seeds. To hedge against shortages, dealers inflate orders. If demand materializes, dealers benefit from their inflationary behavior. If it does not, t...

2017
Cui Li Bo Xiao Qinghai Wang Ruilun Zheng Juying Wu

To provide more insights into the responses of the soil seed bank and vegetation to human disturbance intensity, we selected four land use types, including: native grassland (no human disturbance), abandoned artificial grassland (light human disturbance), artificial grassland (moderate human disturbance), and farmland (severe human disturbance) in a semi-arid climate of northern China. The spec...

2011
F. R. Hay R. J. Probert

Seed banking remains a cornerstone in the conservation of plant genetic resources. To be successful, it relies on the collecting and banking of high-quality seeds. In 1995 there was relatively little guidance available to seed collectors (especially of wild plant species), who had to make decisions in the field about what to collect and how to handle collected material. Since then, research int...

2008
CHAD C. JONES CHARLES B. HALPERN JESSICA NIEDERER

—Pocket gophers have the potential to alter the dynamics of grasslands by creating mounds that bury existing vegetation and locally reset succession. Gopher mounds may provide safe sites for less competitive species, potentially increasing both species diversity and vegetation heterogeneity (spatial variation in species composition). We compared species composition, diversity and heterogeneity ...

2013
S Dhakal

Use of improved seeds has a vital role in enhancing agricultural production. Agriculture extension has implemented farmers’ managed seed multiplication program at the community level to ensure efficient supply of improved seeds. Several success and failure cases of seed multiplication through farmers' organizations were experienced. Therefore, a case study was conducted in the western terai reg...

2003
Rebecca L. Brown Jason D. Fridley

Immigration rates of species into communities are widely understood to influence community diversity, which in turn is widely expected to influence the susceptibility of ecosystems to species invasion. For a given community, however, immigration processes may impact diversity by means of two separable components: the number of species represented in seed inputs and the density of seed per speci...

2013
Alistair G. Auffret Louise Tränk Alistair Auffret

The success or failure of many organisms to respond to the challenges of habitat destruction and a warming climate lies in the ability of plant species to disperse between isolated habitats or to migrate to new ranges. European semi-natural grasslands represent one of the world’s most species-rich habitats at small scales, but agricultural intensification during the 20th century has meant that ...

Journal: :Genetics and molecular research : GMR 2014
J Y Che J J Ding C Y Liu D W Xin H W Jiang G H Hu Q S Chen

Seed length and seed width are an important factor to the soybean yield. So the quantitative trait loci (QTL) location for seed length and seed width could assistant the breeding of soybean. In this study, the QTL underlying seed length and seed width were studied. A recombinant inbred line population of soybeans derived from a cross between the American semi-draft cultivars Charleston and Dong...

Journal: :Archaeological and Anthropological Sciences 2022

Abstract Stable isotope-based dietary information on the tenth century CE Hungarian population serves as a valuable comparative tool to other stable isotope studies in region. This study presents multiproxy approach involving skeletal samples with least diagenetic alteration and best-preserved primary signals. Dental bone collected from three cemeteries northeastern Hungary were investigated us...

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