in order to investigate the effects of cattle manure, benefit fungi of trichoderma species and psudomunas spp. bacteria on seedling emergence parameters, growth and yield of wheat (triticum aestivum l.) a pot experiment was carried out in factorial (23) arrangement based on a randomized complete design with three replications. the treatments were three levels of cattle manure (10, 20 and 30 t.h...

 Background: As Moringa peregrina is a valuable medicinal plant in traditional medicine, it is necessary to determine responses of this plant to salinity.  Objective: To determine some biochemical and growth responses of Moringa peregrina to salinity at the seedling stage. Methods: This experiment was conducted in Institute of Medicinal Plants-ACECR, on base of factorial experiment as ...

Sandra M. Duval Mark A. Berhow New Crops and Processing Technology Research, USDA, ARS, National Center for Agricultural Utilization Research, 1815 North University Street, Peoria, IL 61604 Defatted seedmeals from 15 glucosinolate-containing plant species were analyzed for herbicidal activity by determining inhibition of seedling emergence when added to a sandy loam soil containing wheat and si...

We investigated the effects of seed burial depth and soil water content on seedling emergence and growth of Ulmus pumila var. sabulosa (sandy elm), an important native tree species distributed over the European-Asian steppe. Experimental sand burial depths in the soil were 0.5, 1.0, 1.5, 2.0 and 2.5 cm, and soil water contents were 4%, 8%, 12% and 16% of field capacity. All two-way ANOVA (five ...

1 Population dynamics of the biennial plant Tragopogon pratensis have been monitored 2 in the Park Grass Experiment at Rothamsted Research, Harpenden, UK, over many 3 years. Observations of diseased T. pratensis, systemically infected by the autoecious 4 demicyclic rust Puccinia hysterium, were made over the period 1995-2008, and 5 confirmed an outbreak pattern of dynamics, characterised by an ...

abstract heterotrophic seedling growth has described as the product of the following dynamic and to transmit seed reserves and the conversion efficiency of mobilized seed reserves to seedling tissue. this research was carried out to evaluate germination and seedling growth of wheat seed (n8019) in the form of combined analysis design with crd arrangement. treatments consisted of 4 levels of wat...

Abstract Timely and quality planting of soybean is important to achieve maximum yield potential. Wet spring soil conditions rain frequently shorten the time for farmers plant crops within optimal conditions. New planter technology has been introduced that enables their fields faster more precisely than with traditional planters. Large plot field studies were conducted in Indiana from 2015 2017 ...

1. Ambrosia trifida L. (giant ragweed), an aggressive weed of US grain crops and indigenous to North America, colonizes no-tillage crop fields and undisturbed soils despite its large seed size and susceptibility to seed predation. Secondary seed dispersal is critical to seed survival and seedling establishment, yet mechanisms of secondary dispersal are poorly understood for such large-seeded we...

American Journal of Botany 98(6): 975–985, 2011; http://www.amjbot.org/ © 2011 Botanical Society of America Seedling emergence, when the dormant seed germinates and begins life as a seedling, is the most fragile of stages in the life cycle of annual plants. The timing or phenology of seedling emergence can strongly infl uence plant fi tness, as well as the composition of a plant ’ s neighborhoo...

Some large-seeded tree species have cotyledonary reserves that persist for months after seedling establishment. We carried out two screened growing-house experiments with seedlings of Gustavia superba (Lecythidaceae) to test hypotheses proposed to explain why cotyledons are retained. We grew seedlings from large and small seeds in sun and shade to determine if cotyledon reserves supplement phot...