The yield of had a positive relation with the spikelets per panicle of erect type, and with the panicles of curve type.

直立穗型品种对产量起正向作用的是穗粒数和千粒重，弯曲穗品种对产量起正向作用的是穗数。

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After the positive study, this paper supposes the models to the yield equation of government bonds according to the form characteristic lately of the yield curve of government bonds in our country.

在定性研究之后，本文便根据我国近期国债收益率曲线的形态特征，对我国国债收益率方程进行了模型假设。

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Normally the yield curve is positive because investors demand higher yields to compensate for the risk that inflation might pick up.

ECONOMIST: Bond bombshell

But on May 15th the short-term yield curve turned positive for the first time in 16 months, usually an indicator that the market thinks enough easing has taken place.

ECONOMIST: Inflation in America

Yield curve is positive.

FORBES: Twenty Reasons For Optimism