Comparison of maize lines and their test crosses according to grain yield and some physiological properties
Özet
This study evaluated 7 inbred lines of maize (Zea mays L.), 3 testers, and 21 hybrids produced using the line × tester mating
design. The study was conducted in Konya, in The Central Anatolia Region of Turkey. CD (coefficient of determination) values were
calculated to detect the effect of inbred lines on grain yield and other physiological properties of the test crosses. The mean values of all
the parameters of the genotypes were evaluated using the Duncan’s multiple range test for grouping progenies and parent groups. The
CD values between parent groups and progenies were statistically significant for photosynthetic efficiency (r² = 0.11**; P <0.01) and
Mg content (r² = 0.14**; P <0.01). The CD value for grain yield of line 14.2 was 0.58; for chlorophyll content, anthocyanin content, and
grain yield of line 14.20 CD values were 0.70, 0.25, and 0.55, respectively. Similarly, the CD values for total anthocyanin and Mg contents
of line 14.21 were 0.36 and 0.48, respectively. The inbred line 14.20 was effective for the formation of chlorophyll, total anthocyanin
content, and grain yield according to its high CD values, and progenies of the line were within the first group for other properties,
according to the Duncan’s multiple range test (14.20 × FRMo 17 [total anthocyanin content, grain yield], 14.20 × ADK 451 [chlorophyll
content, grain yield]). A hybrid produced from an inbred line that has high CD values within the first group represents the genetic
potential of the inbred line, supporting the use of CD values for parental selection methods in breeding studies.
Koleksiyonlar
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