Based on the data collected from two feeding trials conducted with Ay-cows fed with linseeds as a principal source of unsaturated fatty acids in the ration, the following formula was computed showing the effect of the diet on the iodine number (I.N.) of the milk fat in these experiments: I.N. = 6.7 + 38.5 * (U.F.A. consumed, g/day + 200 x Sc.fuu + 2xL.W.)/(M.F. secreted, g/day + 60 x Sc. fuo + 3 x L.W.) where unsaturated fatty acids (U.F.A.) in feed are expressed as an oleic acid equivalent, M.F. = milk fat (g./day), Sc. fuu=Scandinavian feed units underfed, Sc. fuo= Sc. feed units overfed, and L.W. = live weight in kilograms.

Twelve tomato varieties were exposed to night temperatures of 50—55° F and 65—70° F for two weeks just after cotyledon expansion beginning one week after the seed was sown. The responses of each variety were observed as regards the days to the first open flower, the number of leaves formed before the first inflorescence, and the number of flowers in the first and second inflorescence. A night temperature of 50—55° F increased the number of days to the first open flower, and decreased the number of leaves. The number of flowers in the first inflorescence was increased in all varieties except. J. Moran and Pearson by night temperatures of 50—55° F.

In mustard N deficiency accelerated flower initiation and particularly flower bud development. Excess N delayed flowering but increased number of flowers. Of other elements Ca influenced flowering most.Dill developed its flowers most rapidly with normal or high rates of N. N deficiency retarded flowering and decreased the number of inflorescenses.In spinach N rate only slightly influenced flowering. N deficiency retarded flower budding by a few days.Perilla crispa reacted most to N and P. Except where N was in excess (2N), the time required for appearance and development of flower buds was negatively correlated with the N concentration, while the number of flowers was positively correlated with it. P deficiency delayed flowering and decreased the number of flowers.With Kalanchoë blossfeldiana N increased the number of flowers and accelerated flowering.Mineral nutrition had only quantitative influences on the photoperiodic behaviour of the crops studied.It was concluded that the effect of minerals on the flowering process of LD (mustard, dill and spinach) and SD plants (Perilla and Kalanchoë) was indirect, through their effect on synthesis of material for flower bud formation, on auxin production and hence on growth.

In mustard N deficiency accelerated flower initiation and particularly flower bud development. Excess N delayed flowering but increased number of flowers. Of other elements Ca influenced flowering most.Dill developed its flowers most rapidly with normal or high rates of N. N deficiency retarded flowering and decreased the number of inflorescenses.In spinach N rate only slightly influenced flowering. N deficiency retarded flower budding by a few days.Perilla crispa reacted most to N and P. Except where N was in excess (2N), the time required for appearance and development of flower buds was negatively correlated with the N concentration, while the number of flowers was positively correlated with it. P deficiency delayed flowering and decreased the number of flowers.With Kalanchoë blossfeldiana N increased the number of flowers and accelerated flowering.Mineral nutrition had only quantitative influences on the photoperiodic behaviour of the crops studied.It was concluded that the effect of minerals on the flowering process of LD (mustard, dill and spinach) and SD plants (Perilla and Kalanchoë) was indirect, through their effect on synthesis of material for flower bud formation, on auxin production and hence on growth.

<br />Some general notes are given on the morphology of the inflorescence<br />and flowers in the genus Dichapetalum and on the nomenclature of th<br />generic name Dichapetalum.<br />An attempt has been made to revise the c. 40 species described<br />in it from the Indo-Australian area. It appeared necessary to reduce a<br />large number of specific names to synonymy. In the present paper 16<br />species have been recognized among which 4 are new. Besides, a number of infraspecific taxa have been distinguished. Pentastira Ridley, referred to the Icacinaeeae, has been reduced to Dichapetalum. A census is given of Indo-Australian species including one extra-Malaysian one, 16 D. vitiense.

Institut für Netzforschung was one of a number of independent institutes which later became the Institut fur Seefischerei

Institut für Netzforschung was one of a number of independent institutes which later became the Institut fur Seefischerei

Loss of leaves in olive trees decreases the number of perfect flowers and therefore may lower production since imperfect flowers cannot set fruit.