【摘要】 对石竹出笋退笋规律的研究表明 ,石竹出笋时间始于 5月 1日左右 ,历时约 36d ,出笋初期出笋少 (持续时间 12d左右 ,占 11 1% ) ,盛期出笋数较多 (持续时间 18d ,占 83 9% ) ,末期出笋数迅速下降 (持续时间 6d ,出笋占 5 0 % ) ,初期出土石竹笋退笋少 ,以后退笋率不断增加 ,但末期退笋率又有所下降。随着笋期的推移 ,退笋高度不断增加 ,退笋生长时间缩短。更多还原

【Abstract】 The study results show that the shoot emergence of Phyllostachys nuda begins on May 1 or so and lasts about 36 days;few shoots emerge at the preliminary stage of shooting,this situation lasts about 12 days and the shooting quantity accounts for 11 1% of the total shooting quantity;more shoots emerge at the prosperous stage of shooting,this situation lasts about 18 days and the shooting quantity accounts for 83.9%;much fewer shoots emerge at the last stage of shooting,this situation lasts about 6 days and the shooting quantity accounts for 5.0%;and the degraded shoot quantity is small at the preliminary stage,the degraded shoot percentage increases later and it declines a bit at the last stage.更多还原