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水杨酸对甜瓜种子萌发及其生理特性的影响
引用本文:杨江山,种培芳,费赟.水杨酸对甜瓜种子萌发及其生理特性的影响[J].甘肃农业大学学报,2005,40(1):38-41.
作者姓名:杨江山  种培芳  费赟
作者单位:1. 甘肃农业大学农学院,甘肃,兰州,730070
2. 甘肃农业大学林学院,甘肃,兰州,730070
摘    要:以黄河蜜甜瓜种子为试材,通过水杨酸(SA)浸种预处理,研究了 SA 对甜瓜种子萌发质量和相关生理特性的作用。结果表明:较低浓度 SA 浸种预处理明显促进了黄河蜜甜瓜种子的萌发和生长,其萌发指数、发芽势、发芽率、根冠比和生物学产量等指标在低浓度范围内呈显著增长趋势,其中 0.5 mmol/L 的 SA 处理效果极为显著。而高于 0.5 mmol/L 的 SA 处理则对种子萌发起抑制作用,各项萌发和生长指标均随 SA 浓度的增加而明显下降。SA浸种后甜瓜萌发种子内蛋白质和脯氨酸的含量的变化同种子的萌发和生长趋势相似,较低浓度 SA 显著提高了种子内蛋白质、脯氨酸的含量,此后随 SA 浓度的升高其含量呈明显下降趋势。

关 键 词:水杨酸  甜瓜  种子  萌发  生理特性
文章编号:1003-4315(2005)01-0038-04

Effects of salicylic acid (SA) on germination and physiological characteristcs of melon seed
YANG Jiang-shan,CHONG Pei-fang,FEI Yunl.Effects of salicylic acid (SA) on germination and physiological characteristcs of melon seed[J].Journal of Gansu Agricultural University,2005,40(1):38-41.
Authors:YANG Jiang-shan  CHONG Pei-fang  FEI Yunl
Institution:YANG Jiang-shan1,CHONG Pei-fang2,FEI Yunl
Abstract:Melon seed (cv. Huanghemi) was treated with different concentration of salicylic acid (SA), and germination quality and some physiological characteristics were studied in this paper. The results showed that SA at lower concentration significantly promoted germination and growth of seed, some parameters, such as germination exponent, germination energy, germination rate,root and ratio shoot and biomass, were increased, The concentration at 0.5mmol/L SA showed the best. However, when the concentration of SA went beyond 0.5mmol/L, germination and growth of seed were decreased. Contents of protein and proline were increased at lower concentration; however, decreased at higher concentration of SA in germination seeds.
Keywords:salicylic acid  melon  seed  germination  physiological characteristic
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