In order to study the physiological base on super high yield of the northern japonica hybrid rice and offer breeding theory about large-panicle northern japonica hybrid rice.

为了研究北方大穗型杂交粳稻超高产的生理基础，为选育大穗型的北方杂交粳稻提供育种理论。

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According to the strain breeding theory, the selection and breeding of antibiotics AGPM producing mutant and the fermentation technology of AGPM were systematically studied in this thesis.

本文根据育种理论，对新型抗肿瘤抗生素agpm生产菌种的选育、发酵法生产抗生素agpm进行了系统的研究。

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Another theory suggests that seas heated by global warming are better suited for breeding, multiplying the creature's Numbers.

另一个理论称，全球变暖导致海水温度上升，使海洋更适宜水母繁殖，总数成倍增长。

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Dr Brunton looked at the number of chicks fledged per nest in the colony she was observing and discovered that, contrary to the selfish-herd theory's predictions, pairs breeding near the edge of the colony were more successful than those at its centre.

ECONOMIST: Animal behaviour