The capability of electromagnetic waves to penetrate trough foliage (FOLPEN), combined with the potentialities of the polarimetric SAR interferometry (POL-InSAR) are demonstrated to be valid instruments for the investigation of forest characteristics and the detection of camouflaged targets. However, the complexity of the interactions of different forest elements can lead to unexpected results....

A carbon-balance model based on mechanistic and allometric relationships (CroBas) was used to assess the effects of competition in C allocation jack pine (Pinus banksiana Lamb.), a shade-intolerant species, black spruce (Picea mariana (Mill.) B.S.P.), moderately shade-tolerant species. For both efficiencies ranged from 36 99%. The average bias lower than 11% 18% for spruce, respectively. total ...

The Institute of Food and Agricultural Sciences (IFAS) is an Equal Opportunity Institution authorized to provide research, educational information and other services only to individuals and institutions that function with non-discrimination with respect to race, creed, color, religion, age, disability, sex, sexual orientation, marital status, national origin, political opinions or affiliations....

Aspects of the susceptibility of English walnu~ to infection by Xanthomonas campestris pv. juglandis, the bacterium which causes walnut blight, were investigated. Leaves of 15 mature English walnut trees were inoculated with the bacterium which causes walnut blight, and after 35 days each cultivar was rated for infection severity. During the following dormant season, the buds associated with th...

One of important components in an image retrieval system is selecting a distance measure to compute rank between two objects. In this paper, several distance measures were researched to implement a foliage plant retrieval system. Sixty kinds of foliage plants with various leaf color and shape were used to test the performance of 7 different kinds of distance measures: city block distance, Eucli...

Field and laboratory investigations were undertaken at Nagarjun Medicinal Plants Garden from 1984 - 1987 with object to find out the suitable variety of palmarosa having high yield of foliage and oil. From the pooled analysis the variety IW - 3631 showed highest dry foliage yield (10271 KG / ha) which was significantly superior over all varieties i.e, IW 3632, IW-3630, IW RRL (B) - 65 and IW - ...

A hydrocarbon that is widespread in Juniperus foliage was isolated from Juniperus erectopatens (Cheng and L. K. Fu) R. P. Adams and identified as (E,E,E)-1,7-dimethylcyclodeca-1,4,7-triene (pregeijerene B). Geometry of the disubstituted double bond was determined by IR and NMR spectroscopy, while that of the trisubstituted double bonds was proven by comparison of the products of selective hydro...

cosmic rays in the upper troposphere (9000 meters to 15000 meters) initiate the followingnuclear chemical reaction: 1n + 14n => 14c + 1h. previous research has shown a strong effect of latitude onthe abundance of neutrons from cosmic rays. however, to date, there has been little exploration of therelationship between the latitude effect for cosmic-ray neutrons and latitudinal variations of stab...