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There are clear indications that Birch grows in height only when the mean air and soil temperatures exceed 42-44°F. There is a rather loose correlatio...
Read moreMeasures of trait variability, in particular fluctuating asymmetry (FA), have been proposed as biological tools for monitoring environmental quality, ...
Read moreIn 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...
Read moreStudies in fire-prone Mediterranean ecosystems have repeatedly shown that the mean values of fire regimes (particularly frequency, but also size and i...
Read moreA variety of autecological attributes of seeds and seedlings (seed weight, germination rate, germination percentage, absolute growth and RGR variation...
Read moreGives an ALGOL procedure that computes the length and direction of shadows from data on the geographical location, date, time of day and height of the...
Read moreThe foraging range and constancy of two colonies of Bombus terrestris were investigated on a mixed arable farm in the UK using harmonic radar, which h...
Read moreAn autoradiographic method for measuring root length in the soil using 32P injected into onion leaves is described. The soil containing the roots was ...
Read moreShading of plants grown outdoors decreased RGR and NAR but increased leaf. area ratio; values for the N. African Syn I and Syn II were similar to thos...
Read moreYoung plants of S170 tall fescue were grown in different day/night temperature regimes in most combinations of 10, 15, 20, 25 and 30 deg C in 4 series...
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