Journal article

Publication year: 1991

Pages: 119-127

Journal: Journal of Agronomy and Crop Science

Volume number: 167

Issue number: 2

ISSN: 0931-2250

DOI Link: https://doi.org/10.1111/j.1439-037X.1991.tb00942.x

Publisher: Wiley

Abstract: 

The effect of plant growth regulators (PGR) upon the structure of the ears in the monoculm summer barley Kindred Uniculm was tested during four years in pot experiments.

The influence of CCC + Ancymidol and RSW on yield structure of the whole plant and the ear which was divided in three parts (basal = 1.-5. spike internode, medial = 6.-10. spike internode, apical = off 11. spike internode) was measured. The application of PGR's in EC 32 increased kernel yield every year in a range from 11-21%. Number of kernels were strongly improved while the thousand kernels weight remained unchanged. The increase in number of kernels in the apical zone was higher (26-64%) than in the basal zone (0-10%). Obviously "medial dominance" was reduced as the single kernel weight was the same in untreated plants.

The decrease of GA1-content was evident after application of PGR's. A correlation between GA1-content and plant height was found.

Harvard Citation style: NATT, C. and HEILIGENTHAL, R. (1991) CHANGES IN FERTILITY OF EARS IN MONOCULM SUMMER BARLEY AFTER APPLICATION OF PLANT-GROWTH REGULATORS, Journal of Agronomy and Crop Science, 167(2), pp. 119-127. https://doi.org/10.1111/j.1439-037X.1991.tb00942.x

APA Citation style: NATT, C., & HEILIGENTHAL, R. (1991). CHANGES IN FERTILITY OF EARS IN MONOCULM SUMMER BARLEY AFTER APPLICATION OF PLANT-GROWTH REGULATORS. Journal of Agronomy and Crop Science. 167(2), 119-127. https://doi.org/10.1111/j.1439-037X.1991.tb00942.x