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Seeds of Polygonum spp., especially P. convolvulus, were the main weed seeds eaten by partridges in October 1968 and formed 44% of the total dry weigh...

Shoots of Calluna vulgaris were covered in a thin layer of gypsum which held sufficient water to give good estimates of evaporation rate and surface t...

Details are given of the construction of a diffusion porometer for measuring stomatal resistances of leaf surfaces, based on principles described in F...

Graphs and histograms are given showing changes in the stomatal resistance of Vicia faba leaves during the day as related to leaf insertion and date o...

Optimum summer index is based on the formula I= 10T_X + 20S-7R where T_X is mean daily temperature (°F), S is mean daily sunshine (h) and R is total rai...

The integrator consisted of a table-tennis ball containing a solution of photolysable uranyl oxalate. Provided exposure ceased before 70% of the oxala...

The apple orchards studied had discontinuous bush-and hedge-type canopies of mean leaf-area indexes of 1-1-4. These values were low, owing to the exis...

Discriminant functions for discriminating between standard and compact mutants of young Delicious apple trees were computed on the basis of 5 simple m...