Abstract:
The selection of optimal parental lines are very important – at hybrid corn seed production.
Correlation between the seedling length, high seed vigour ratio, and emergence during
suboptimal environmental conditions are high.
The higher-yielding ability is the most important thing, point of view as a financial factor.
After examination, the seed biological value (germination, and vigour laboratory tests) the seed
lots of 21 maize genotypes, with different straight and reciprocal combinations were studied at
field experiments, between 2020-2022.
We can emphasize: there are differences between the different crossing combinations.
The fresh shoot weight of maize seedlings developing in a cold, oxygen poor environmental
conditions was greater than the fresh root weight for the genotypes, regardless of the crossing
methode. The plants developing from seeds with greater seed vigour; exhibited better emergence,
faster ripening and lower grain moisture at harvest ( H 05 x RPK, H 70 x RPK, H 06 x US, H 06
x H 44, H 06 x TG, H 72 x H 29, H 06 x H 49, GS 21 x H 35, GS 22 x H 35).
Correlation between the high vigour seedlings - for plants developing from seed lots from
reciprocal crossing combinations-and fresh shoot weight of the seedlings and the kernel yield,
were obvious – Marco, Kadricorn, Ghurkan, Koramag, Marfi, Mv 633, Mv Exp 21, and Mv 401-
21 hybrids.
Importance of selection the best crossing ( yielding ability) combinations as the same – like
importance of seed biological value. |
