A grey recurrent population improvement of wheat was suggested by combining the grey breeding method with the wheat dwarf male-sterile technology.

将灰色育种方法与矮败群体改良方法相结合，提出了小麦灰色轮回群体改良方法。

youdao

For a country whose population is still overwhelmingly rural, and which throughout its history has experienced recurrent food shortages, such an omission indicates a superficial analysis of Indonesia's economy.

ECONOMIST: Bitter pill