不同處理方法對(duì)皂莢種子萌發(fā)及幼苗生長(zhǎng)的影響

1、    不同處理方法對(duì)皂莢種子萌發(fā)及幼苗生長(zhǎng)的影響    申健 劉軼 劉德江摘要目的縮短皂莢種子休眠時(shí)間，提高種子發(fā)芽率。方法以層積處理為對(duì)照（ck），通過測(cè)定發(fā)芽時(shí)間、發(fā)芽率、株高、根長(zhǎng)、鮮重、葉綠素含量等指標(biāo)，對(duì)比濃硫酸法、堿水法、熱水法、冷熱水交替法、砂紙法、層積法對(duì)皂莢種子萌發(fā)及幼苗生長(zhǎng)的影響。結(jié)果砂紙法和濃硫酸法處理的種子發(fā)芽率最高，達(dá)84%；砂紙法處理的種子集中在4 d內(nèi)發(fā)芽，發(fā)芽時(shí)間最短，且幼苗根長(zhǎng)最長(zhǎng)，達(dá)80.52 mm；濃硫酸法處理具有最高的葉綠素含量，為6.597 8 mg/g；ck在株高方面有明顯優(yōu)勢(shì)，植株鮮重以濃硫酸和砂紙?zhí)幚頌樽?/p>

2、佳。結(jié)論綜合各因素考慮，砂紙法和濃硫酸法是促進(jìn)皂莢種子萌發(fā)及幼苗生長(zhǎng)的最佳方法。關(guān)鍵詞皂莢；種子萌發(fā)；幼苗生長(zhǎng)s723.1a0517-6611（2017）17-0144-02abstractobjectiveto shorten the dormancy time and improve the germination rate of gleditsia sinensis seeds. methodthe seeds were treated with concentrated sulfuric acid method， alkaline water method， hot water met

3、hod， alternate hot and cold water method， sand paper method and stratification method to compare the influence on seed germination and seedling growth through the germination time， germination rate， plant height， root length， fresh weight and chlorophyll content. resultgermination rate of sandpaper

4、and sulfuric acid methods was 84%， which was the highest. the seeds of sandpaper method germinated in 4 days， and germination time was the shortest. the root length of sandpaper method was the longest， that was 80.52 mm. the treatment of sulfuric acid had the highest chlorophyll content， which was 6

5、.597 8 mg/g. contrast treatment had obvious advantages in plant height. plant fresh weight of sulfuric acid and sandpaper was the best. conclusionit can be concluded that sandpaper and sulfuric acid method were the best ways to promote the germination and seedling growth of gleditsia sinensis.key wordsgleditsia sinensis；seed germination；seedling growth基金項(xiàng)目佳木斯大學(xué)應(yīng)用技術(shù)類重點(diǎn)項(xiàng)目（yz2014-00