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A map is given showing the distribution in East Africa of 6 ecological zones denned on the basis of rainfall and evaporation data. Of the vegetation t...

In this technique the roots are laid out on a flat surface and a count is made of the number of intersections between the roots and random straight li...

A liquid displacement method is described for rapid measurement of volumes of individual detached leaves or other small plant parts with an accuracy o...

The weed seed populations built up in the top 6 in. of soil in land on which vegetable crops have been grown for long periods, was estimated from soil...

The experimental material (all of Queen Charlotte Islands provenance) consisted of seedlings grown for three months in growth chambers and detached sh...

The results of a survey carried out in Britain in 1987 and 1988 are recorded. Participants, mainly children, recorded the first visit for each bumble ...

A study of Cervus elaphus and Odocoileus hemionus during May-Oct. in a partially logged Abies amabilis forest on the W. slope of the Cascade Range in ...

Arsenic accumulations in the range 30 to 650 mg/kg dry wt. were detected in several submerged species taken from the Waikato river system where the el...

An equation is given which gives valid estimates of wind profiles in crops of maize and Vicia faba where foliage distribution is reasonably uniform. R...

Describes the theory, construction and calibration of a new type of diffusion porometer in which the leaf is placed inside the porometer chamber; it i...