liáng / zhǒng / fán / yù / yǒu / zhù / yú / tí / gāo / zuò / wù / de / chǎn / liàng / hé / kàng / bìng / néng / lì良种繁育有助于提高作物的产量和抗病能力。Breeding improved varieties helps increase crop yields and disease resistance.