Water deficiency reduces leaf expansion and photosynthetic efficiency, potentially reducing the ability to withstand area (LA) loss. This study aimed evaluate effects of water restriction on soybean tolerance defoliation in vegetative reproductive periods development. Two experiments were conducted a greenhouse located Lages, Santa Catarina State Brazil, during 2017/2018 growing season. Cultiva...

Chemical spraying is one of the most important and frequently performed intercultural agricultural operations. It imperative to select appropriate technology as a selection ineffective leads wastage considerable volume applied chemicals non-target area. Many precision technologies have been developed in past few decades, such image processing based on real-time variable-rate chemical systems, a...

Abstract The ability of forests to provide ecosystem services and renewable goods faces several challenges related insect defoliation. Spruce budworm outbreaks represent one the major natural disturbances in boreal forest eastern North America. In this chapter, we will focus on effects defoliation by spruce balsam fir black trees. We first describe tree water status depending duration then pres...

Spring frosts can defoliate trees, reduce canopy carbon assimilation, and alter interspecific competition dynamics. These events may become more common with climate change, but our understanding of the associated ecological impacts is limited by stochastic nature their occurrences. In 2020, a late spring frost defoliated oak ( Quercus spp.), not co-occurring maples Acer spp.) across temperate b...

before a killing freeze was imperative for winter survival and plant persistence. Cutting during cold hardening Harvesting alfalfa (Medicago sativa L.) after mid-September in lowered both plant persistence and root total nonstructhe North-Central USA often reduces plant winter survival, but the physiological mechanisms associated with poor winter survival are not tural carbohydrate (TNC) concen...

Herbivory by rodents, lagomorphs and insects may locally constrain woody plant seedling establishment and stand development. Recruitment may therefore depend either upon plant tolerance of herbivory, or low herbivore abundance, during seedling establishment. We tested potential herbivory tolerance by quantifying growth, biomass allocation, and survival of defoliated Prosopis glandulosa seedling...

Title of Dissertation: DISTRIBUTION AND DYNAMICS OF THE EVERGREEN UNDERSTORY LAYER IN CENTRAL APPALACHIAN HIGHLAND FORESTS Robert A. Chastain Jr., Doctor of Philosophy, 2004 Dissertation Directed By: Associate Professor Philip A. Townsend, Marine, Estuarine and Environmental Science Graduate Program Evergreen understory layer communities dominated by Rhododendron maximum L. and/or Kalmia latifo...

An, L.V., 2004. Sweet potato leaves for growing pigs: Biomass yield, digestion and nutritive value. Doctor’s dissertation. ISSN 1401-6249, ISBN 91-576-6750-0 The aim of the present studies was to evaluate the potential of using sweet potato leaves (Ipomoea batatas (L.) Lam) as a protein source in diets for growing pigs. A number of sweet potato varieties were evaluated with respect to the bioma...

The January 1998 ice storm broke off tree crowns across a wide geographic area in northeastern North America, and forest tent caterpillar (Malacosoma disstria Hubner) defoliated some of the same stands 2004–2007. We assessed post-event growth responses upper canopy sugar maples (Acersaccharum Marsh.) previously thinned recently rehabilitated even-aged northern hardwood New York State, USA. Core...