Search Results

You are looking at 1 - 10 of 1,025 items for :

Clear All

al., 2011 ; Liu et al., 2017 ) has received considerable attention over the years, but little work has focused specifically on the effects of amino acids in tissue culture. As fundamental nutrients, amino acids can be synthesized into many important

Open Access

Drought inhibition of plant growth is associated with interruption of various physiological and metabolic processes, including nitrogen and amino acid metabolism ( He and Dijkstra, 2014 ; Hopkins and Hüner, 2004 ; Khasanova et al., 2013

Open Access

Many commercial turfgrass fertilizers are referred to as specialty fertilizers. These products contain nitrogen (N), phosphorus (P), and potassium (K), in addition to organic materials such as plant hormones, humic substances, amino acids (AAs), or

Open Access

fertilization products because of their ability to promote or improve growth over mineral nutrition only ( Ervin and Zhang, 2008 ; Schmidt et al., 2003 ). A common organic additive in specialty turfgrass fertilization products is amino acids [AA ( Schmidt, 1999

Open Access

( Kocadağlı et al., 2013 ). Enhancement of essential amino acids (EAAs) in horticultural plants has recently been emphasized because vegetables are one of the main contributors of EAA in the human diet ( Wang et al., 2017 ). Therefore, enhancement of the FAA

Open Access

inorganic sources of calcium, e.g., Ca(NO 3 ) 2 .4H 2 O, are applied during winter or early spring production to prevent calcium deficiency ( Dole and Wilkins, 2004 ). Recently, Ca-amino acid chelates have been synthesized and distributed to supply different

Free access

the changes in amino acid constituents related to disease tolerance in mycorrhizal plants, Baltruschat and Schonbeck (1975) demonstrated that the propagation of Thielaviopsis basicola was inhibited by the increase of arginine and citrulline in

Free access

adjustments to adapt/tolerate salinity stress, which include the changes of free amino acids and carbohydrates metabolism. Free amino acids are fundamental compositions in the processes of protein and other growth substances synthesis, which are vital for

Free access

have been proposed to form from fatty acid degradation through β-oxidation or the lipoxygenase system ( Sanz et al., 1997 ) and BC ester precursors have been proposed to be derived from branched-chain amino acid (BCAA) degradation ( Gonda et al., 2010

Free access
Authors: and

Abstract

Dormant rhubarb crowns do not force well until their rest period or physiodormancy (7) has been broken by sufficient chilling in the field during late fall. There are many reports that during exposure of dormant plants to cold, the free amino acids contents change. Asen and Stuart (1) found that dormant leaves and buds of Hydrangea macrophylla showed an increase of some free amino acids after 6 weeks of storage at 4 to 5°C. Another worker (8) reported that in one alfalfa variety there was a 20% increase of acids from August to December. Schneider (4) found that the levels of some free amino acids in leaves of Ilex crenata nigra rooted cuttings changed during storage at cool temperatures. In this study buds and roots of dormant rhubarb crowns were analyzed to determine the free amino acids present and also possible changes in acids levels that might indicate the end of the rest period.

Open Access