Zbornik - Društvo genetičara Srbije

IV-Pos-18 ZBORNIK ABSTRAKATA III KONGRESA GENETIÈARA SRBIJE 135
Subotica, 30. novembar - 4. decembar 2004.
OCENA KVALITETA KLIJAVACA BAGRENCA (Amorpha fruticosa L.)
METODOM P. S. WELLINGTONA
Radmila Kneeviæ i A. Tucoviæ
Šumarski fakultet, Beograd
Objekat istraivanja su odabrana stabla bagrenca (Amorpha fruticosa L.) odgajana u
Beogradu i okolini. Ukupno je sakupljeno seme sa: 12 stabala iz slobodnog oprašivanja, tri
prostorno izolovana stabala i tri stabla nakon manje-više ukrštanja u srodstvu. U uzrastu
klijavaca od 2 do 4 lista mereno je više osobina i utvrðen je procenat anormalnih klijavaca
za svaki od tretmana. Za analizirana kvantitativna svojstva izraèunate su srednje vrednosti,
standardna devijacija, varijacioni koeficijent i njihove greške. Statistièka opravdanost
izmeðu srednjih vrednosti odreðivana je pomoæu Studentovog t-parametra.
Normalnim klijavcem, se prema kriterijumima meðunarodne kontrole, smatra klijavac
koji je sposoban za tipièan rast pri gajenju na standardnoj podlozi, odgovarajuæoj
vlanosti, temperaturi i osvetljenosti. Dosadašnje informacije o karakteristikama
klijavaca bagrenca nas ne zadovoljavaju s obzirom da se u struènoj literaturi daju samo
podaci na nivou vrste, a svera raznih kategorija anormalnih klijavaca izlazi iz granica
obiènog laboratorijskog ispitivanja.
U radu se iznose uporedne karakteristike klijavaca u linijama polusrodnika od slobodnog
oprašivanja, oprašivanja u manje-više srodstvu i samooplodnji. Najviše vrednosti za
èetiri analizirana svojstva klijavaca, evidentirana su kod potomaka od slobodnog
oprašivanja, dok kod oprašivanja u manje-više srodstvu i samooprašivanja, vrednosti
osetno opadaju. Utvrdene razlike su statistièki opravdane. Udeo više kategorija
anormalnih klijavaca se osetno uveæava pri oprašivanju u srodstvu i samooplodnji.
Utvrðene razlike u analiziranim tretmanima dokazuju da je njihova pojava pod
genetièkom kontrolom odabranih test stabala.
QUALITY ASSESSMENT OF AMORPHA (Amorpha fruticosa L.) SEEDLINGS
BY P. S. WELLINGTON’S METHOD
The study was focused on the selected amorpha (Amorpha fruticosa L.) trees cultivated in
Belgrade and its surroundings. The seed was collected from 12 trees from free pollination,
three spatially isolated trees and three trees after more or less crossing of related trees. At
the seedling stage of 2 to 4 leaves, several characters were measured and the percentage of
abnormal seedlings for each treatment. Mean values, standard deviation, variation coefficient
and their errors were calculated for the analysed quantitative characters. Statistical
justification between mean values was determined by Student t-parameter.
Normal seedling, according to the criteria of international control, is the seedling capable
of typical growth under cultivation in standard substrate, adequate moisture, temperature
and light. Previous information on amorpha seedling characteristics are not satisfactory
because professional literature gives only the data at the level of the species, and the
sphere of different categories of abnormal seedlings exceeds the limits of the common
laboratory analysis.
This paper presents the comparative characteristics of seedlings in half-sib lines of free
pollination, pollination of more or less related trees and self-fertilisation. The highest values
for the four study seedling characters were recorded in the progeny of free pollination,
while in the pollination of more or less related trees and self-pollination the values
decrease considerably. The differences are statistically justified. The percentage of several
categories of abnormal seedlings increases under the pollination of related trees and
self-fertilisation. The differences of the study treatments prove that their occurrence is
under genetic control of the selected test trees.