摘要
以沙棘种子为试材,研究聚乙烯醇(PVA)在5℃低温和常温下处理对种子活力和出苗的影响。结果表明,沙棘种子分别经2%、4%和6%的PVA渗调24 h、48 h、72 h后,发芽率、活力指数和出苗率均比对照有明显提高,发芽时间缩短。10个处理中,以2%的PVA在低温下处理24 h后效果最好,发芽率为97%,活力指数为11.21,出苗率为93.3%,发芽高峰期比对照提早1 d。
Effect of polyvinyl alcohol （PVA） treatment under low temperature （5℃） and normal temperature on seed vigour and seedling emergence of Sea buckthorn （Hippophae rhamnoides） was studied. The results indicated that the germination rate, vigour index and emergence rate of seeds are obviously higher than control treatment after the treatments of 24 hours, 48 hours and 72 hours with 2%, 4% and 6% of PVA, respectively. The most result was the treatment of 24 hours with 2% PVA under the low temperature in a total of 10 different treatments, and its germination rate, vigour index and emergence rate separately up to 97%, 11.21 and 93.3%, and the peak period of seed germination ahead of time 1 day compared with control treatment.
出处
《西北农业学报》
CAS
CSCD
北大核心
2008年第1期226-228,共3页
Acta Agriculturae Boreali-occidentalis Sinica
关键词
沙棘
聚乙烯醇
种子活力
出苗
Hippophae rhamnoides
Polyvinyl alcohol
Seed vigour
Seedling emergence
