红麻种子老化过程中活力指标变化研究

Study on Vitality Index Changes of Kenaf Seed in Aging Process

以15份红麻种子为材料,采用人工加速老化方法,对老化过程中发芽势、发芽率、发芽指数、活力指数、简化活力指数和苗干重进行比较研究。结果表明:高温(44±1)℃、高湿(95%相对湿度)条件下,随着老化时间延长,15个品种的发芽率、发芽指数、活力指数等都呈下降趋势,降低过程不是等速率的,且品种之间有差异;根据模糊数学隶属函数法的综合评价,15份红麻种子耐老化性由强到弱依次是:辽55>C-2>粤红1号>SD 124>新红95>泰红763>KB 11>青皮1号>83-20>SF 192>V 379>红引135>KB 2>福红991>台农1号。同时供试红麻种子发芽势、发芽率、发芽指数、活力指数、简化活力指数、苗干重与老化处理水平呈显著负相关。

Study the vitality index including germination potential, germination percentage, germination index, vigor index, simple vigor index and seedling dry weight of 15 kenaf seeds by way of artificial accelerated aging. The result showed that the germination percentage, germination index and vigor index of these seeds reducing gradually with treat time on condition that high temperature （44 ± 1 ） ℃ and high humidity crelative humidity 95 percent）, but the change was different mong different varieties. Through the vague mathematics subjected function synthesical evalucation, The resistomce of aging of the 15 varieties kenaf seeds in sequence from strong to weak as follows ： Liao 55 〉 C-2 〉 Yuehong 1# 〉 SD 124 〉 Xinhong 95 〉 Taihong 763 〉 KB 11 〉 Qingpi 1 〉 83-20 〉 SF 192 〉 V 379 〉 Hongyin 135 〉 KB 2 〉 Fonghong 991 〉 Tainong 1. and the germination potential, germination percentage, germination index, vigor index, simple vigor index and seedling dry weight were negatively correlated with the extent of artificial aging treatment.