草业科学
草業科學
초업과학
PRATACULTURAL SCIENCE
2010年
2期
144-149
,共6页
刘贺%毛培胜%孔令琪%阴佳鸿
劉賀%毛培勝%孔令琪%陰佳鴻
류하%모배성%공령기%음가홍
马棘种子%质量%发芽%加速老化
馬棘種子%質量%髮芽%加速老化
마극충자%질량%발아%가속노화
Indigofera pseudotinctoria%seed quality%germination%accelerated aging
以水土保持植物马棘Indigofera pseudotinctoria种子为研究对象,针对其质量检测存在的问题,确定适宜的发芽和加速老化条件.在发芽试验中,设置15～25、15～30、15～35、20～30、20～35、25～35、20、25、30、35 ℃共10种温度处理,光照设8 h光照和24 h黑暗2个处理;在加速老化试验中,设置39、41、43、45 ℃共4个温度水平和24～96 h之间的7个时间处理.研究结果表明:不同光照和温度条件下马棘种子发芽率不同,在8 h光照和24 h黑暗适宜发芽的条件均为恒温25 ℃或变温20～30 ℃,种子发芽对光照不敏感,但黑暗条件会导致种苗黄化,温度和光照间存在互作效应.初次发芽计数时间为7 d,末次发芽计数时间为14 d.加速老化最适条件为43 ℃、72 h,且老化温度和时间存在互作效应.
以水土保持植物馬棘Indigofera pseudotinctoria種子為研究對象,針對其質量檢測存在的問題,確定適宜的髮芽和加速老化條件.在髮芽試驗中,設置15～25、15～30、15～35、20～30、20～35、25～35、20、25、30、35 ℃共10種溫度處理,光照設8 h光照和24 h黑暗2箇處理;在加速老化試驗中,設置39、41、43、45 ℃共4箇溫度水平和24～96 h之間的7箇時間處理.研究結果錶明:不同光照和溫度條件下馬棘種子髮芽率不同,在8 h光照和24 h黑暗適宜髮芽的條件均為恆溫25 ℃或變溫20～30 ℃,種子髮芽對光照不敏感,但黑暗條件會導緻種苗黃化,溫度和光照間存在互作效應.初次髮芽計數時間為7 d,末次髮芽計數時間為14 d.加速老化最適條件為43 ℃、72 h,且老化溫度和時間存在互作效應.
이수토보지식물마극Indigofera pseudotinctoria충자위연구대상,침대기질량검측존재적문제,학정괄의적발아화가속노화조건.재발아시험중,설치15～25、15～30、15～35、20～30、20～35、25～35、20、25、30、35 ℃공10충온도처리,광조설8 h광조화24 h흑암2개처리;재가속노화시험중,설치39、41、43、45 ℃공4개온도수평화24～96 h지간적7개시간처리.연구결과표명:불동광조화온도조건하마극충자발아솔불동,재8 h광조화24 h흑암괄의발아적조건균위항온25 ℃혹변온20～30 ℃,충자발아대광조불민감,단흑암조건회도치충묘황화,온도화광조간존재호작효응.초차발아계수시간위7 d,말차발아계수시간위14 d.가속노화최괄조건위43 ℃、72 h,차노화온도화시간존재호작효응.
In order to standardize the testing method of germination of Indigofera pseudotinctoria seed, an experiment was conducted to determine the optimum condition for seed germination and accelerated aging test. In the germination test, the temperature treatments were adopted including 15-25 ℃, 15-30 ℃, 15-35 ℃, 20-30 ℃, 20-35 ℃, 25-35 ℃, 20 ℃, 25 ℃, 30 ℃ and 35 ℃, 2 light treatments(8 h lightness+16 darkness and 24 h darkness). In the accelerated aging trial, ageing temperature were 39 ℃, 41 ℃, 43 ℃, 45 ℃ and ageing duration were 24 h, 36 h, 48 h, 60 h, 72 h, 84 h, 96 h. The results showed that different combination of light and temperature treatments influenced germination rates of I. pseudotinctoria seed. Optimum conditions for seed testing of germination was constant temperature 25 ℃ or alternate temperature 20-30 ℃, 8 h light will be helpful for seedling growth, while total dark condition leads to the etiolated seedlings. There was an interaction effect between temperature and lightness. The first count time is the 7 th day after seed germination, and the last time is the 14 th day for the seedling evaluation. The optimal temperature of accelerated aging treatment was 43 ℃ and the ageing duration was 72 h and there was an interaction effect between accelerated aging temperature and duration.
