Studies on the Ideotype Characters of Winter Wheat in Huanghuai Wheat Region

doi:10.3321/j.issn:1000-7091.1994.04.006

Abstract

Abstract: Thirty four winter wheat cultivars with diversified yield potentials which were released in different periods in Huanghuai winter wheat region were used to study the changes　of morphological characters following the increase of yield.The results showed that along　with the change of cultivar types from low yielding to high yielding, the plant height　significantly decreased w琢1e the plant height composition index increased|the width of the　upper two leaves increased while the ratios of length to width decreased. The ratios of the a,reas of upper two leaves to that of total leaves and the length of sheathes to those of the corresponding internodes all had a big increase. The flag leaf angle tends to become smaller. Based　on the results, the ideal morphological characters and canopy structure for the super-high　yielding cultivars in Huanghuai winter wheat region were discussed.

Key words: Winter wheat, Ideotype characters

CLC Number:

S512.104.4

Lei Zhensheng, Lin Zuoji. Studies on the Ideotype Characters of Winter Wheat in Huanghuai Wheat Region[J]. ACTA AGRICULTURAE BOREALI-SINICA, 1994, 9(4): 27-32. doi: 10.3321/j.issn:1000-7091.1994.04.006.

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