1.   Shareholders are expecting a higher yield this year.

2.   Finally, the lowest U.S. Treasury bond yields this year also helped South African bond prices.

3.   For investors in mortgage securities, the plunge in yields this year has meant that their bonds are even more likely to be repaid early as more consumers refinance.

4.   Major portions of its military and commercial infrastructure are operating at reduced levels and the agricultural system is producing lower yields each year.

5.   Subdued growth will also help drive down bond yields this year, investors said.

6.   Vintners also uniformly report low yields this year.

7.   Corn futures slumped Tuesday in early dealings on the Chicago Board of Trade after an estimate called for a record-high yield this year.

8.   Soy products benefitted from speculation of a lower yield this year.