Journal article

Publication year: 1979

Pages: 35-47

Journal: Theoretical and Applied Genetics

Volume number: 55

Issue number: 1

ISSN: 0040-5752

eISSN: 1432-2242

DOI Link: https://doi.org/10.1007/BF00282974

Publisher: Springer

Abstract: 
The different reactions of inbred strains and hybrids often influence yield performance under different ecological conditions. Because of the negative correlation between length of vegetation period and yield of the hybrids (r = -0.473) it was possible in some cases to obtain higher yields in a shorter vegetation period up to tasseling and silking. In kernel yield, the relationship between inbred strains and their hybrids was small. Specific combining ability was much more important, and length of vegetation period did not show any apparent direct influence. Dry matter content in kernels at harvest time was distinctly influenced by length of vegetation period (r = 0.639 for inbred strains and r = 0.767 for hybrids). Correlation between strains and hybrids in dry matter content of kernels was not close (r = 0.335). Grain yield was much more influenced by the number of kernels per plant in inbred strains (r = 0.572) than in number of kernels plant on length of vegetation period. The number of kernels was much more influenced by the number of rows per ear (r = 0.761 for inbred strains and 0.531 for hybrids), by diameter of ear (r = 0.672 and r = 0.414) and by length of ear (r = 0.684 and 0.657), respectively. For these characteristics the correlation between inbred strains and hybrids was distinct for length of ear (r = 0.537) and number of kernels per plant (r = 0.384) only. Some strains, however, did show a closer correlation in these characteristics. Yield was influenced by TKW [ 1000-kernel weight] as well (r = 0.546 for inbred strains and 0.703 hybrids). Cob percentage (in percent dry matter of the whole ear) was weakly inherited by some of the lines, for example, F 2. Between kernel yield and cob percentage, a negative correlation with r = 0.542 for the inbred strains and r = -0.307 for the hybrids could be found.

Harvard Citation style: SCHUSTER, W., CERNJUL, Z. and POSSELT, U. (1979) CORRELATIONS BETWEEN VARIOUS CHARACTERS OF INBRED STRAINS OF CORN AND THE RELATIONSHIP BETWEEN INBRED STRAINS AND THEIR HYBRIDS TESTED AT 3 DIFFERENT ECOLOGICAL LOCATIONS, TAG Theoretical and Applied Genetics, 55(1), pp. 35-47. https://doi.org/10.1007/BF00282974

APA Citation style: SCHUSTER, W., CERNJUL, Z., & POSSELT, U. (1979). CORRELATIONS BETWEEN VARIOUS CHARACTERS OF INBRED STRAINS OF CORN AND THE RELATIONSHIP BETWEEN INBRED STRAINS AND THEIR HYBRIDS TESTED AT 3 DIFFERENT ECOLOGICAL LOCATIONS. TAG Theoretical and Applied Genetics. 55(1), 35-47. https://doi.org/10.1007/BF00282974