The herbaceous vine Mandevilla funiformis (Vell.) K. Schum. occurs in open vegetation the Southern Brazil. present study was carried out a sandbank, east of Florianópolis, Santa Catarina State. Floral morphology, nectar features (production pattern, removal effects, and standing crop), floral visitors (including pollinator, robber thief nectar), fruit set seed germination M. were studied. Every...

Abstract Growing citrus involves cultural treatments such as girdling and foliar potassium treatment to increase fruit size, yield quality. The aim of the study was evaluate effects single double stem girdling, nitrate (KNO 3 ) on leaves combinations these yield, size quality characteristics, leaf chlorophyll concentration nitrogen content, fluorescence (PSII) sugar content ‘Fremont’ mandarin v...

The present study investigates the characteristics of CO2 exchange (photosynthesis and respiration) over agricultural site dominated by wheat crop and their relationship with ecosystem parameters from MODIS. Eddy covariance measurements of CO2 and H2O exchanges was carried out at 10Hz interval and fluxes of CO2 were computed at half-hourly time steps. The net ecosystem exchange (NEE) was partit...

Ornithine carbamoyltransferase, argininosuccinate synthetase, argininosuccinate lyase, and arginase activity were measured in extracts from cotyledons of developing and germinating seeds of Pisum sativum L. The course of activity of these four urea cycle enzymes showed a similar pattern during seed development. The activity per cotyledon increased sharply initially and reached a maximum about 5...

The high molecular weight (HMW) glutenin-encoding genes in wheat are developmentally activated in the endosperm at about 8 days after anthesis. We have investigated the physical changes that occur in these genes in two transgenic lines containing about 20 and 50 copies each of the HMW glutenin genes together with their promoters. Using fluorescence in-situ hybridisation (FISH) and confocal imag...

The phenolic composition of olive fruits (Olea europaea L.) (cv. Picual, Villalonga, Alfafarenca, and Cornicabra) grown in different areas of Spain was studied by high performance liquid chromatography-mass spectrometry. Different levels of tyrosol, catechin, p-coumaric acid, rutin, luteolin, and oleuropein were observed in the different varieties analyzed. Treating the fruit with 0.3% Brotomax...

The photosynthetic performance of the canopy boll-leaf system (BLS) reflects material and energy exchange abilities between plant external environment. A two-year field experiment determined response to irrigation regimes [600 (W1), 480 (W2), 360 (W3) m3 ha-1] cotton BLS physio-biochemical traits. Decreasing irrigation, photochemical quenching coefficient, electron transfer rate PSII, chlorophy...