新疆农业科学2024，Vol.61Issue(4)：869-877,9.DOI:10.6048/j.issn.1001-4330.2024.04.010
不同引发剂处理对春小麦种子活力及生理特性的影响
Effects of different priming treatments on seed vigor and physiological characteristics of spring wheat
摘要
Abstract
[Objective]To study the effects of different seed priming on seed germination and seedling growth characteristics of spring wheat in the hope of providing theoretical basis for improving seed vitality of the wheat.[Methods]Xinchun 26 wheat seeds were taken as the test material,and primed with different concen-trations of SA(0.05,0.1,0.15 mmol/L),CaCl2(6,9,12 mmol/L)and water for different time 4,6,8,10,12 and 14 h,respectively to measure the indexes such as the germination potential,germination rate,ger-mination index,vigor index,fresh dry weight and length of seedling and root,electrical conductivity,SOD ac-tivity,POD activity,dehydrogenase activity and MDA content and other factors.[Results]The results showed that the seed germination potential,germination rate,germination index,vigor index,fresh dry weight,seed-ling length and root length,SOD,POD,dehydrogenase activity and other indexes of spring wheat treated with different initiators were significantly increased compared with the control,and the electrical conductivity and malondialdehyde content were significantly decreased,among which A2 and B1 treatments had the best effect.Under the condition of different priming time,germination index,seedling growth index and physiological in-dex of each initiator treatment reached the maximum value at 12 h,and there was significant difference be-tween them and other priming time.[Conclusion]Seed priming enhances the enzyme activity of spring wheat seeds,effectively resists membrane peroxidation,reduces the content of membrane peroxidation products,maintains the integrity of cell structure,and effectively improves the seed activity of spring wheat,and pro-motes the growth of seedlings.Among them,0.1 mmol/L SA and 6 mmol/L CaCl2 have the best effect on the priming time of 12 h.关键词
春小麦/种子引发/种子活力/生理特性Key words
spring wheat/seed priming/seed vigor/physiological characters分类
农业科技引用本文复制引用
古力尼尕尔·吐尔洪,张金汕,李丹丹,张路路,王润琪,石书兵..不同引发剂处理对春小麦种子活力及生理特性的影响[J].新疆农业科学,2024,61(4):869-877,9.基金项目
新疆维吾尔自治区高校科研计划项目"春小麦种子活力关键技术研究示范"(XJEDU20211011) University R&D Project of Xinjiang Uygur Autonomous Region"Research and Demonstration of Key Technologies for High Vigor Seeds of Spring Wheat"(XJEDU20211011) （XJEDU20211011）
