Through the study of 1200 flowers of 400 young ear of 49 combinations, a concrete index judging the period of the pollen development according to the shape of plant and flowers was put forward;
在花药培养技术上，通过49个组合400个幼穗1200个颖花的研究，提出了依据植株和颖花形态判断花粉发育时期的具体指标；
Through the study of 1200 flowers of 400 young ear of 49 combinations, a concrete index judging the period of the pollen development according to the shape of plant and flowers was put forward;
在花药培养技术上，通过49个组合400个幼穗1200个颖花的研究，提出了依据植株和颖花形态判断花粉发育时期的具体指标；
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