＜正＞In flowering plants, tapetum degeneration is proposed to be triggered by a programmed cell death （PCD） process during la......

目的探讨阴囊内结构超声在男性不育症诊断中的价值。方法回顾性分析162例男性不育症患者阴囊内结构彩色多普勒超声检查的图像特点......

P/TGMS (photo-thermo sensitive genic male sterility) lines with pale-green leaf color have beendeveloped in japonica ric......

介绍了桉树杂交育种工作的情况及成果.在育种目标和育种策略的指导下,选择31株尾叶桉优树作母本,选择细叶桉、赤桉和刚果12号桉等1......