Effects of phosphorus supply and mycorrhizal status on the response of photosynthetic capacity to elevated CO(2) were investigated in loblolly pine (Pinus taeda L.) seedlings. Seedlings were grown in greenhouses maintained at either 35.5 or 71.0 Pa CO(2) in a full factorial experiment with or without mycorrhizal inoculum (Pisolithus tinctorius (Pers.) Coker & Couch) and with an adequate or a li...

Basal stem rot, caused by the basidiomycete fungus, Ganoderma boninense, is an economically devastating disease in Malaysia. Our study investigated the changes in lignin content and composition along with activity and expression of the phenylpropanoid pathway enzymes and genes in oil palm root tissues during G. boninense infection. We sampled control (non-inoculated) and infected (inoculated) s...

In order to make mechanized planting economically viable, the present spring planting period for Norway spruce (Picea abies (L.) Karst.) seedlings in Scandinavia needs to be extended. To evaluate the possibilities to extend the planting period, six field experiments were established in four years during which frozen-stored, dormant seedlings and actively growing seedlings targeted for spring pl...

Rhododendron species are typical calcifuges that do not grow well in calcareous soils characterized by alkaline pH and high concentrations of Ca2+. In this study, we investigated the effects three levels a Ca2+ treatment on vitro germination seedling growth species: R. chihsinianum, fortunei, vernicosum. Alkaline had no significant effect parameters (gMAX, mean time uniformity) but significantl...

Plastid-encoded RNA polymerase (PEP) regulates the expression of chloroplast genes involved in photosynthesis and development rice. The PEP-associated protein (PAP) PAP7/pTAC14 is essential for formation PEP complex. However, function PAP7 rice remains unclear. In this study, we identified a mutant, w81, which displays yellow-green leaf symptom before four-leaf stage. seedlings w81 mutant displ...

Background: Rapid detection of seed germination will be a valuable tool for testing laboratories and commercial companies. The EC test has been accepted into ISTA rules beans. potential the electrical conductivity (EC) readings in predicting total normal nine white coated coloured French bean cultivar seeds was examined. Methods: Nine different (Phaseolus vulgaris L.) cultivars were obtained fr...

This study aimed to estimate genetic variability among four pea cultivars and determine seed physiological quality initial growth of garden (Pisum sativum L.) under drought stress. Seeds the were subjected water stress induced by polyethylene glycol PEG 6000 at three levels (0; -0.15; -0.49, -1.03 MPa). The experiment was conducted laboratory conditions, in a completely randomized design with r...

Spelt (Triticum spelta L.) has been increasingly attracting producers due to the biological properties and chemical composition of its seeds. As high-quality seeds are necessary for successful production, vigour organically conventionally produced spelt studied results presented in this paper. The variety Nirvana by both methods at Maize Research Institute ?Zemun Polje? 2015 were observed. Acco...

Shortleaf pine (Pinus echinata) is a fire dependent species that is declining across the southeastern US. Its unique basal crook is an adaptation that protects dormant buds from fire and facilitates prolific sprouting of seedling rootstocks following top-kill. Understanding what influences shortleaf pine sprouting after fire could greatly increase success of natural regeneration efforts. We exa...

An infrared-imaging system has been used to study the influence of gravity on the kinetics of first positive phototropism. The development of phototropic curvature of etiolated seedlings of Arabidopsis thaliana was measured in the absence of visible radiation. Following a pulse of blue light, stationary seedlings curved to a maximum of approximately 16 degrees about 80 minutes after stimulati...