In the first part of the thesis, chemical analyses were conducted for four populations of switchgrass, SW1-SW8. Each population consisted of 69% leaves, 27% internodes, and 4% nodes. The variations in carbohydrates, lignin, extractives content, Higher Heating Value (HHV), and syringyl:guaiacyl (S:G) ratio were determined among the populations and the morphological portions. The experimental res...

The farmer requires detailed information on crop stress conditions in order to manage the crop growth. This information may be acquired by low granular satellite images to coarsely identify areas of interest within the field followed by ground measurements carried out by robotic surveying platforms for plant identification and segmentation. A novel concept for creating rational behaviors of sur...

-In Wireless sensor network management is the process of managing, monitoring, and controlling the behavior of each sensor network. The limitation of wireless sensor networks is limited storage space, limited battery power and limited data processing. Communication takes more source of energy consumption in WSN; various schemes have been proposed to reduce the internodes transmissions. Strategi...

Chromatin was extracted from healthy, avirulent Agrobacterium tumefaciens inoculated, and crown-gall tumor Vicia faba internodes of the same age. Chromatin from crown-gall tissue produced 5 times more RNA per 100 micrograms of DNA than chromatin from the healthy tissue. When template availability was compared using chromatin with saturating amounts of Escherichia coli RNA polymerase, chromatin ...

An attempt has been made to uncouple the effects of the two primary components of shade light, a reduced red to far-red (R/FR) ratio and low photosynthetically active radiation (PAR), on the elongation of the youngest internode of sunflower (Helianthus annuus) seedlings. Maximal internode growth (length and biomass) was induced by a shade light having a reduced R/FR ratio (0.85) under the low P...

The kinetics of elongation of individual internodes, the peduncle and panicle of maize were studied in field experiments in Gatton (Australia) using two tropical cultivars, and compared to similar data previously collected in Grignon (France) on a temperate cultivar. Data for phytomer initiation and organ extension and appearance were related to thermal time calculated from the temperature in t...

After screeninig several lhundlred cultures of fungi, actinomvcetes, aid bacteria isolated fromii various soils for plant growtlh regulating activity, a fungus culture. F7-2578 (identified later as Peneicilliumiit pufrpurresceiis), was found( whIiclh had a (lwNarfing effect on pea planits. A foliage spray of the culture filtrate inhibite(d the gro)wvth of the stemls, producing shortened interno...