Hostname: page-component-cd9895bd7-dk4vv Total loading time: 0 Render date: 2024-12-26T05:45:23.867Z Has data issue: false hasContentIssue false
  • English
  • Français

Quantitative selection for compact, high-yielding maize hybrids

Published online by Cambridge University Press:  27 March 2009

J. H. Zhang ,
Y. N. Luo ,
Z. X. Wang  and
X. Z. Gao
J. H. Zhang
Affiliation:
Maize Research Institute, Shandong Academy of Agricultural Sciences, Jinan 250100, People's Republic of China
Y. N. Luo
Affiliation:
Maize Research Institute, Shandong Academy of Agricultural Sciences, Jinan 250100, People's Republic of China
Z. X. Wang
Affiliation:
Maize Research Institute, Shandong Academy of Agricultural Sciences, Jinan 250100, People's Republic of China
X. Z. Gao
Affiliation:
Maize Research Institute, Shandong Academy of Agricultural Sciences, Jinan 250100, People's Republic of China
Get access Rights & Permissions [Opens in a new window]

Summary

Maize (Zea mays L.) hybrids with different productivity per unit approximate leaf projected area (ALPA) were compared in China, 1990–92. The results showed that the selection index (SI) values of all the hybrids tested decreased with an increase in population density. Nevertheless, the hybrids with high SI values at low plant densities also had relatively high SI values at high plant densities. Thus, high SI hybrids could be selected at any of these densities. Although no significant yield increase was obtained by using high SI hybrids at plant densities of 52500 plants/ha or lower; significant increases in yield were obtained for high SI hybrids at > 67 500 plants/ha. Leaf area was one of the parameters necessary for determining SI, and this could be predicted with a skewed bell-shaped function simply by measuring the length and breadth of the largest leaf and counting the total number of leaves per plant.

Type
Crops and Soils
Information
The Journal of Agricultural Science , Volume 125 , Issue 1 , August 1995 , pp. 39 - 42
Copyright
Copyright © Cambridge University Press 1995

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Duncan, W. G., Loomis, R. S., Williams, W. A. & Hanau, R. (1967). A model for simulating photosynthesis in plant communities. Hilgardia 38, 181–205.CrossRefGoogle Scholar
Dwyer, L. M. & Stewart, D. W. (1986). Leaf area development in field-grown maize. Agronomy Journal 78, 334–343.CrossRefGoogle Scholar
Dwyer, L. M., Stewart, D. W., Hamilton, R. I. & Houwing, L. (1992). Ear position and vertical distribution of leaf area in corn. Agronomy Journal 84, 430–438.CrossRefGoogle Scholar
Hesketh, J. D. & Musgrave, R. B. (1962). Photosynthesis under field conditions. IV. Light studies with individual corn leaves. Crop Science 2, 311–315.CrossRefGoogle Scholar
Keating, B. A. & Wafula, B. M. (1992). Modelling the fully expanded area of maize leaves. Field Crops Research 29, 163–176.CrossRefGoogle Scholar
Li, D. H., Zhang, Y. H., Zhai, Y. J., Hong, S. J. & Xu, Q. Z. (1992). Plant type and high yielding hybrid breeding in maize. I. Influence of plant type on yield. Journal of Shandong Agricultural Sciences 3, 4–8.Google Scholar
Pepper, G. E., Pearce, R. B. & Mock, J. J. (1977). Leaf orientation and yield of maize. Crop Science 17, 883–886.CrossRefGoogle Scholar
Su, S. W., Gao, H. M. & Guo, X. I. (1990). Study on yield potential of hybrids with different angle leaves in maize. Acta Agronomica Sinica 16, 364–371.Google Scholar
Winter, S. R. & Ohlrogge, A. J. (1973). Leaf angle, leaf area and corn (Zea mays L.) yield. Agronomy Journal 65, 395–397.CrossRefGoogle Scholar
Wolfe, D. W., Henderson, D. W., Hsiao, T. C. & Alvino, A. (1988). Interactive water and nitrogen effects on senescence of maize. II. Photosynthetic decline and longevity of individual leaves. Agronomy Journal 80, 865–870.CrossRefGoogle Scholar
Zhang, J. H. & Cheng, X. L. (1993). Investigation of senescence of leaves and roots in maize. In Advances in Natural Science of Shandong, pp. 178–180. Beijing: Chinese Science & Technology Press.Google Scholar