Observations on the Effects of the Hail on Some Apple Varieties under the Conditions of 2021

The research was carried out on 3 apple varieties, namely Golden delicious, Jonathan and Starkrimson, grown in the N-E area of Romania, within the Research Station for fruit growing Iasi, on Fălticeni development center.  The plantation was established in 1990, being in 31 since planting.  The trees are grafted on the MM106 rootstock, with a planting distance of 4 meters between rows and 2.5 meters between trees, with a density of 1000 trees/ha. During the agricultural year 2021, hail was observed as an extreme climatic phenomenon, recorded in June, July and August, when the trees were in the phenological stage BBCH 71-74, BBCH 75, BBCH 77 and BBCH 79. Extreme phenomena were accompanied by heavy rains and storms that affected both the quality and quantity of fruit production.  The highest degree of damage was recorded in the Golden delicious variety in all four hail falls, with a percentage between 5% and 67%. Therefore, the fruit production was affected, their quality being impaired and not being commercialized as high quality fruit, for fresh consumption, but only industrialized

Noi strategii de prevenire şi combatere a bolilor şi dăunătorilor la specia cireş

The research was carried out within the SCDP Iasi, in order to test ecological alternatives regarding the control of diseases and pests in the cherry species. The observations were made in 2019 having as research material 2 varieties of cherry (CĂTĂLINA, MARIA), grafted on mahaleb, the planting distance of 5X4 being in year VII from planting, the experience was placed on 4 experimental variants.The climatic conditions of this period were particularly favorable both for the evolution of the attack of the diseases (anthracnose and monilosis) and for pests. In the fight against diseases (moniliasis and anthracnose) the best results were obtained in the case of the chemical variant with Signum products 0.03%, Folicur Solo 0.075%, Mospilan 20 SG 0.03% and in the ecological variantthe best results were obtainedwith the products Deffort 0.3%, Copfort 0.3%, Mimox 0.2%, Laser 240 SC 0.06%

Contractile effects of angiotensins are independent of receptors internalization in rat aorta

-Arrestins-mediated signaling downstream of seven transmembrane receptors is a relatively new paradigm for signaling by these receptors. The inhibitors of AT1 receptor internalization we tested, that means nigericin, concanavalin A and monensin, did not significantly alter the contractions induced by Ang II in the rat aortic smooth muscle preparations. The same effects we obtained also when we used as agonists Ang I, Ang III and Ang IV. Thus, the contractile effects induced by angiotensin peptides administered in the rat aortic smooth muscle preparations are independent of their receptors internalization. Since -arrestins are mediating G-protein independent signaling via AT1 receptors their involvement in the contractile effects of angiotensin peptides must be further explored