乙烯利处理对祁连圆柏种子脱皮和萌发的影响  

Effect of Ethephon on Peeling and Germinating of Sabina przewalskii Seeds

作　　者：丁得庆 陵军成 

机构地区：[1]甘肃省天祝县古城林场,甘肃天祝733211 [2]甘肃省天祝县林业工作站,甘肃天祝733299

出　　处：《青海农林科技》2016年第3期81-84,共4页Science and Technology of Qinghai Agriculture and Forestry

摘　　要：在祁连圆柏种子育苗过程中,为了省时、省工脱皮和提高种子的发芽率和生长量,利用乙烯利水剂来处理祁连圆柏球果。结果表明:不同浓度乙烯利水剂喷洒祁连圆柏球果后,通过堆捂后可加速球果果皮衰老,改变果皮质地,促进种核生理后熟,简化了脱皮工序,降低了脱皮成本。脱皮种子播种后,发芽率、幼苗生长量指标苗高、针叶数、主根长均高于对照(CK)清水处理。40%乙烯利水剂750倍液处理的效果相对最佳,发芽率、苗高、针叶数和主根长分别较对照(CK)清水处理提高了87.15%、70.00%、83.33%和63.16%,脱皮成本较对照(CK)清水处理降低了70.00%。建议在有条件的地方采用这一浓度处理祁连圆柏球果,覆盖堆捂后可达到省工、省时脱皮和提高苗木生长量的目的。Sabina przewalskii seeds were treated with ethephon for saving time and labor,increasing germination rate and growth. The result showed that peel was promoted to senile,peel texture was changed,seed nucleus was promoted to mature,peeling procedure was simplified,and peeling cost was decreased after that Sabina przewalskii seeds were sprayed with different concentration ethephon and stacked under plastic film.The germination rate,plant height,needle number,and taproot length of ethephon treating seeds were higher than CK. The effect of 40% ethephon 750 times was optimum relatively,the germination rate,plant height,needle number,and taproot length were increased respectively by 87. 15%,70. 00%,83. 33%,63. 16,the peeling cost was decreased 70. 00% compare to CK. The 40% ethephon 750 times was suggested to treat Sabina przewalskii seeds for saving time and labor,increasing germination rate and growth.

关 键 词：祁连圆柏 乙烯利 脱皮 萌发 

分 类 号：S723.1[农业科学—林木遗传育种]