The influence of photoperiodical regime on the development of winter wheats, grown in non-vernalisable temperatures

13 winter wheat varieties sown in middle of the summer were subjected to short and long day. The aim was to see if the short day might replace the requirement of cold (vernalisation). The result was that only two varieties were enhanced in their development by short day. Five were promoted by long day, one was indifferent and four remainen vegetative

Contributions in knowledge the plantlets of some spontaneous dicotyledonous plants from R.S. Romania

L'ouvrage presente les characters morphologiques des plantules (2-6 feuilles) des certaines plantes dicotyledones spontanees (27 especes) de R.S. Romania des associations appartenant au Bidentetea tripartiti Tx. Lohm. Prsg. 1950, Chenopodietea Oberd. 1957 em. Lohm. et R. Tx. 1961, Plantaginetea majoris Tx. et Prsg.1950, Artemisietea vulgaris Lohm., Prsg. Tx. 1950 et Epilobietea angustifolii R. Tx. et Prgs. 1950

Contributions to Romania's flora II

Die Arbeit umfasst neue Angaben bezuglich der Verbreitung seltener Arten, Varietaten und Formen, sowie neuer systematischer Einheiten fur Rumanien

Contributions to Romania's Flora

oai:ojs.pkp.sfu.ca:article/6Campanula alpine Jacq. var. uniflora A. Nyar. var. nova Planta usque ad 14 cm alta, caule foliao, unifloro, rariter bifloro; calyces laciniae extus glabrae vel glabrescentes. Mtibus Retezat sub Poarta Bucurii versus Lacul Gemenea, alt. cca2050 m (HIA leg. A. Nyarady 1964). La aceasta varietate apartine planta foarte scunda, uniflora, sau pauciflora f., frigida (Schur) A. Nyar. comb. Nova (syn. C. alpina b. frigida Schur in Enum pl. Transs. 1866 p.433), descrisa din Mtii Fagarasului Mt. Arpas, netratata in Flora R. P. R. IX,1964 p.58; de asemenea si f. albiflora (Schur) A. Nyar. comb. Nova (syn. C. alpine a. albiflora Schurl l. c.) semnalata din Mtii Fagarasului, gasita de noi in Mtii Retezat sub Vf. Retezat spre Poarta Bucurii, alt. cca2150 m (HIA leg. A. Nyardy 1964)

Soluble glucides accumulation during the tempering of wheat and barley varieties

"Starea de rezistenta la ger" cum o numeste Tumanov (1), adica starea fiziologica a plantelor capabile de calire, se realizeaza prin procese complexe de pregatire pentru iernat, procese care au loc in protoplasma si vacuola celulei. Prin cercetari anterioare s-a dovedit ca la orzul de toamna se dezvolta slab factorii protoplasmatici ai rezistentei; analiza refractometrica a substantei uscate solubile indica o acumulare a acesteia atat la soiurile de grau cat si la cele de orz (2). Datele care se prezinta in aceasta nota aduc completari celor anterioare (2) cu privire la acumularea glucidelor solubile in celulele orzului de toamna prin procesul de calire

Floristic notes

Achillea X javorkae Prod. (= clypeolata x setacea); Campanula glomerata L. ssp. Hispida(Witas) Hay. F. parviflora; Lappula heteracantha (Ldb.); Polysticum X illricum (Borb) Hahne = lobatum x lonchitis; Trifolium X schwarzii K. wein in Allg. Bot. Zeitschrft.XV (1909) 35 = alpestre x medium