B.A. Vlaic


RESEARCH CONCERNING THE INFLUENCE OF TREATMENT, HARVESTING MOMENT AND MULBERRY LEVEL FROM WHERE THE LEAVES WERE HARVESTED IN THE IIIrd AGE SILKWORM PERFORMANCES

B.A. Vlaic, L.Al. Marghitas, A. Vlaic, Alexandra Matei

Abstract
The influence of some biostimulators used in larvae feed (5% propoli and echinaceaea, respectively, aqueous solution), the effect of the mulberry leaves harvesting time (morning and evening), and influence of mulberry level from where the leaves were harvested on the silkworm performances, (from all mulberry floors - up, middle and base) are presented ion this paper. The variance analyses performed in IIIrd age larvae weight, show distinct and very significant differences between the graduations of the analyzed factors (applied treatments, moments of leaves harvesting and floors from where mulberry leaves were harvested). This suggests the presence of real differences between the graduations of all three studied factors.

Key words: silkworm, mulberry leaf, propoli, echinaceaea

CERCETARI PRIVIND INFLUENTA TRATAMENTULUI, MOMENTULUI RECOLTARII SI ETAJULUI DIN CARE PROVINE FRUNZA DE DUD ASUPRA GREUTATII LARVELOR VIERMELUI DE MATASE LA VARSTA A III-A AGE SILKWORM PERFORMANCES

B.A. Vlaic, L.Al. Marghitas, A. Vlaic, Alexandra Matei

Rezumat
Īn lucrare este prezentata influenta unor biostimulatori administrati īn hrana viermilor de matase (solutie apoasa de propolis si echinaceea in concentratie de 5%), influenta momentului recoltarii frunzei de dud (dimineata si seara) si influenta etajului din care s-a recoltat frunza de dud (din toate etajele superior, mijlociu si baza). Analizele de varianta efectuate pentru greutatea larvelor din vārsta a III-a, reflecta variante distinct sau foarte semnificative īntre graduarile tuturor factorilor analizati (tratamente aplicate, momentele recoltarii frunzei si etajele din care provine frunza de dud), ceea ce sugereaza existenta unor diferente adevarate īntre graduarile celor trei factori studiati.

Cuvinte cheie: viermele de matase, frunza de dud, propolis, echinaceea