Nutrient deficiencies in apple plants (Pyrus malus L.)

A trial was carried out with one year old 'Ohio Beauty apples (grafted on 'Doucin'), grown on sand cu1ture, receining nutrient solutions lacking the following nutrients at the time: N, P, K, Ca, Mg, S, and B. The main conclusions are as follows: as the adequate and inadequate levels from leaf analysis were, respectively: N -2.22 and 1.53%, P - 0,17 and 0.05%, K - 1.32 and 0.33%; Ca -0.9.4 and 0.52%, Mg - 0.37 and 0.06%; S -0.18 and 0.08%; B -62 and 2k ppm.

The cassava mite complex: III - new distribution records, mainly from Colombia and Africa. References to other plants

Uma lista de novas referências e ocorrências para ácaros tetraniquídeos da mandioca é apresentada.

The ethnobotany of southern Balochistan, Pakistan : with particular reference to medicinal plants / Steven M. Goodman, Abdul Ghafoor.

n.s. no.31(1992)

Tropical American plants, XVII / Louis O. Williams.

v.36:no.10(1975)

Studies of American plants. by Paul C. Standley.

v.8:no.5(1931)

Tropical American plants, XII / Louis O. Williams.

v.34:no.8(1972)

Useful plants of the Siona and Secoya Indians of eastern Ecuador / William T. Vickers, Timothy Plowman.

n.s. no.15(1984)

Studies of American plants. by Paul C. Standley.

v.8:no.3(1930)

Studies in American plants, III / Dorothy N. Gibson.

v.34:no.6(1972)

Studies in American plants, VI / Dorothy L. Nash.

v.36:no.9(1974)

Flora of Jamaica, containing descriptions of the flowering plants known from the island, by William Fawcett and Alfred Barton Rendle.

4

Three new species of Mesabolivar (Aranea, Pholcidae) from leaf litter in urban environments in the city of São Paulo, São Paulo, Brazil

In this study we describe three new litter inhabiting species of Mesabolivar González-Sponga, 1998 from nine urban forest remnants in the metropolitan region of the city of São Paulo, Brazil: M. forceps, M. mairyara and M. cavicelatus. In three of these remnants, we conduced a three year sampling using pitfall traps. Mesabolivar forceps sp. nov. was the most abundant pholcid (n=273 adults), always present in the samples, but with highest numbers in spring and summer. Mesabolivar mairyara sp. nov. was the second most abundant species (n=32), but the majority of individuals were collected in March 2001. Only three individuals of M. cavicelatus sp. nov. were collected.

The story of food plants / by B. E. Dahlgren, Chief Curator, Dept. of Botany.

no.25(1940)

Sino-Iranica; Chinese contributions to the history of civilization in ancient Iran, with special reference to the history of cultivated plants and products / by Berthold Laufer --

v.15:no.3(1919)