摘要
研究了次适温下羧甲基壳聚糖对小白菜种子萌发和幼苗生理特性的影响。结果表明:不同浓度的羧甲基壳聚糖对小白菜种子萌发和幼苗生理特性的影响存在差异,其中以1.0mg/mL处理效果最好,小白菜种子的发芽势、发芽率和发芽指数分别比对照提高30.58%、18.04%和47.58%,幼苗的株高、幼苗鲜重、根长和根鲜重以及可溶性糖、可溶性蛋白质和游离氨基酸含量分别比对照提高30.41%、30.00%、15.04%、50.00%6、3.42%、63.19%和22.48%。
The effect of different concentrations of carboxymethyl chitosan（0, 0. 5, 1.0, 2.0 and 4. 0 mg/mL） on Brassica chinensis seed germination and plantlet physiological characteristics at suboptimal temperature （15 ±1℃） was studied. The results showed that the optimum concentration of carboxymethyl chitosan was 1.0 mg/mL. Seed germination rate, germination energy and germination indices increased by 30. 58%, 18. 04% and 47.58% individually compared to the check one. Seedling height increased by 30. 41%, seedling fresh weight by 30.00%, root length by 15.04% ,root fresh weight by 50. 00% ,content of soluble sugar by 63. 42%,content of soluble protein by 63. 19% and free amino acid by 22. 48%.
出处
《北方园艺》
CAS
北大核心
2007年第11期49-51,共3页
Northern Horticulture
关键词
次适温
羧甲基壳聚糖
小白菜
种子萌发
幼苗生理特性
Suboptiznal temperature
Carboxymethyl chitosan
Brassica chinensis
Seed germination
Seedling physiological characteristics
