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Scientific Papers, USAMV Bucharest, Series A, Vol. LII, 2009, ISSN 1222-5339DAMAGES AND LOSSES MADE BY ACYRTHOSIPHON PISUM HARR. INGREEN PEA CROPKeywords: pea, damages, lossesAbstractEMILIA CIOCOIU, P. PAŞOL, GR. MĂRGĂRITUniversity of Agronomic Sciences and Veterinary Medicine of BucharestAcyrthosiphon pisum Harr. is a cosmopolite species and is found all around the world.The aphid develops its life on green pea, lucerne, clover, Vicia sativa L. Vicia faba L. Lensculinaris, sweet wood, being encountered almost entirelly on vegetables.The main plants struck by the green pea louse, according to our research, are shown.As it is seen on the 9 types of plants which were struck by this aphid, the most common onesare the in the green pea family (Pisum spp.). Rarely the aphid has struck species likeMedicago spp. and Trifolium spp. On Vicia sativa L. the attack's frequence was low andwithout a pattern.As it can be seen in the same chart, vegetables are the basic and only plants the aphid feedson. From these vegetables, the green pea, as well as the garden soils, which derive andcome from the field pea and it is closely related to fodder pea (Pisum arvense), originatingfrom Asia and from regions near the Mediterranean Sea, represent the main host plants.During the research which carried out in different countries, it was proved that the greenpea aphid's (Acyrthosiphon pisum Harr.) affinities differ from one soil to another. This stateis actually debt to the different biochemical structure of the vegetable's parts which weredamaged (flowers, leaves, stalks).431
Scientific Papers, USAMV Bucharest, Series A, Vol. LII, 2009, ISSN 1222-5339STUDY REGARDING THE BEHAVIOUR OF SOME NEW RAPECULTIVARS IN THE BANAT PLAIN ZONED. GROSZ, I. BORCEANUniversity of Agricultural Sciences and Veterinary Medicine of Banat, TimisoaraKeywords: behaviour, varieties, fertilization, autumn rapeAbstractResearch has been made on a salt-sodium gleic chernozem soil type in Banat Plain.There have been studied seven cultivars of rapes, cultivated on two levels of fertilization(N 0 P 80 K 80 , N 150 P 80 K 80 ).The studied biological material is represented by the cultivars: Valesca, Orkane, Ader,Potomac, LG, Belin, Milena.The average highest production on the experimented fertilization levels, was registered onValesca cultivar, 2500 kg/ha. Note that on this cultivar, the fund fertilized with N 150 P 80 K 80 ,yield exceeded 3100 kg/ha. Average yield of over 1900 kg/ha, were registered on varietiesMilena and Potomac too.Nitrogen fertilizers have influenced favourable the yield up to 69% at the variant fertilizedwith N 150 on the same constant fund of P 80 K 80 .The obtained yields of 2500-3100 kg / ha and the oil content between 44.6 and 51.2%, leadto the conclusion that the reference area is favourable to cultivate this crops.435
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POTENTIAL AT PLUM, UNDER THE INFLUE
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CROP ENVIRONMENTS UPON THE STIGMINA
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