caracterizarea vigorii unor hibrizi de porumb prin metoda coldtest 6°c
caracterizarea vigorii unor hibrizi de porumb prin metoda coldtest 6°c
caracterizarea vigorii unor hibrizi de porumb prin metoda coldtest 6°c
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46<br />
Olga Stan şi colaboratorii<br />
Germinaţie, % %<br />
100<br />
90<br />
80<br />
70<br />
60<br />
50<br />
40<br />
Neptun<br />
95 100 96 99 97 100 97 99 98<br />
91 93<br />
F322<br />
Genotip<br />
Faur<br />
F4730<br />
Octavian<br />
F365<br />
STAS<br />
Coldtest 6°C<br />
STAS Coldtes<br />
DL 5% = 4,28 8,73<br />
1% = 5,81 11,87<br />
0,1% = 7,88 16,09<br />
Fig. 1 – Potenţialul <strong>de</strong> germinaţie al <strong>unor</strong> <strong>hibrizi</strong> <strong>de</strong> <strong>porumb</strong> <strong>de</strong>terminat <strong>prin</strong> meto<strong>de</strong>le<br />
STAS 25°C şi Coldtest 6°C<br />
(Germination potential of some maize hybrids <strong>de</strong>termined by standard and Coldtest 6°C methods)<br />
Greutate Greutate germeni, germeni, g<br />
35<br />
30<br />
25<br />
20<br />
15<br />
10<br />
5<br />
0<br />
o<br />
***<br />
oo<br />
o **<br />
o<br />
ooo<br />
Neptun<br />
F475M<br />
F322<br />
Paltin<br />
Faur<br />
Genotip<br />
Rapsodia<br />
F4730<br />
F962<br />
Octavian<br />
o<br />
Cocor<br />
F365<br />
**<br />
Coldtest 6°C<br />
STAS<br />
STAS Coldtest<br />
DL 5% = 1,36 2,94<br />
1% = 1,86 4,00<br />
01%= 252 543<br />
Fig. 2 – Greutatea germenilor <strong>de</strong> <strong>porumb</strong>, <strong>de</strong>terminată <strong>prin</strong> meto<strong>de</strong>le STAS 25°C şi Coldtest 6°C<br />
(Maize germ weight <strong>de</strong>termined by standard and Coldtest 6°C methods)<br />
Lungimea coleoptilului<br />
Rezultatele pozitive obţinute privind lungimea coleoptilului, <strong>de</strong>terminată<br />
<strong>prin</strong> <strong>metoda</strong> STAS (25°C), au scos în evi<strong>de</strong>nţă <strong>hibrizi</strong>i Fundulea 475M, Rapsodia<br />
şi Fundulea 365 (figura 3), iar cele obţinute <strong>prin</strong> <strong>metoda</strong> Coldtest 6°C au fost