智科眼

请选择以下任意方式登录

已有帐号?

验证码登录

微信登录

忘记密码
未收到验证码?
注册

微信注册

智科眼: 双语看懂新科研
生态 65
A(一项) study(研究) out of(out of) Clemson(克莱姆森) University(大学) has(has) demonstrated(表明) that(that) inexpensive(廉价),(,) easy(易于) to(to) use(使用) temperature(温度) controllers(控制器) are(are) able(能够) to(to) provide(提供) reliable(可靠) set temperatures(设定温度) for(for) the detailed(详细) observation(观察) of(of) developmental(发育) rates(速率) in(in) response(响应) to(to) different(不同) temperature(温度) treatments(处理).(.)
Researchers(研究人员) Douglas(道格拉斯) Bielenberg(Bielenberg) and() Ksenija(Ksenija) Gasic(Gasic) engaged(从事) a(a) methodical(有条理的) examination(检验) of(of) the practical applications(实际应用) of(of) these(这些) temperature control(温度控制) devises(设计) on(on) cut() stems(),(,) buds(),(,) and() seeds(种子).(.)
The results(结果) of(of) their(他们) study(研究) are(are) detailed() in(in) the article(文章),(,) "(")Controlled(控制)-()temperature(温度) Treatments(处理) with(with) Low-cost(低成本) Off(Off)-()the-()shelf(现成) Equipment(设备) for(for) Bud() or() Seed(种子) Forcing(强迫) Experiments(实验),"(,") published(发表) in(in) HortScience.(HortScience.)
Inexpensive(廉价) plug(即插即)-()and()-()play(play) temperature(温度) controllers(控制器) have(have) recently(最近) become(变成) available().(.) These() allow(使得) a(a) chest(胸部) freezer(冷冻机) to(to) be(be) programmed(编程) easily(容易地) to(to) hold(保持) a(a) desired(所需) set(设定) point() across(across) a range of(一系列) biologically(生物学) relevant(相关) temperatures(温度).(.) Installation(安装) can() be(be) completed(完成) in(in) a(a) few(few) minutes(分钟) using(使用) consumer(消费)-()grade() chest(胸部) freezers(冷冻).(.)
Characterizing(表征) the regulation(调节) of(of) plant(植物) and() seed(种子) development(发育) by(通过) temperature(温度) requires(需要) controlled(受控) exposure(暴露) of(of) replicate(复制) plants(植物) ((()whole(全部) or() in(in) part(部分))()) to(to) multiple(多个) temperature(温度) environments(环境) simultaneously(同时).(.) Experiments(实验) with(with) seeds(种子) or() other(其他) small() plant(植物) segments() can(可以) be(be) performed(进行) on(on) a(a) thermal() gradient(梯度) table(),(,) which(which) can(可以) generate(产生) many(许多) temperatures(温度) at(at) once(once).(.)
However(然而),(,) experiments(实验) involving(涉及) larger() plant(植物) parts(部分),(,) such as(例如) cut(切割) stems(),(,) require(需要) temperature control(温度控制) of(of) a(a) larger() three-dimensional(三维) volume(体积),(,) such as(例如) an(an) environmental(环境) chamber().(.) Inexpensive(廉价) access(获得) to(to) the number(数量) of(of) environmental(环境) chambers() required() for(for) this(这种) sort(分类) of(of) scientific(科学) observation(观察) is() not() easily(容易) available(可用) and() can(可能) therefore(因此) limit(范围) the scope(范围) of(of) experiments(实验).(.)
However(然而),(,) newly() available() plug(即插即)-()and()-()play(play) temperature(温度) controllers(控制器) allow(允许) conversion(转换) of(of) a(a) standard(标准) chest() freezer(冷冻) into(into) a(a) controlled(受控)-()environment(环境) chamber() in(in) minutes(分钟),(,) with(with) no() custom(定制) modification(修改).(.)
To(To) test(测试) the equipment(设备),(,) the researchers(研究人员) subjected(受到) an array of(一系列) identical(相同) plant(植物) types(类型) and() seeds(种子) to(to) a variety of(各种) precise(精确) temperatures(温度) within(within) an array of(一系列) identical(相同) box(箱式) freezers(冷冻箱) ((()chambers()).().) They(他们) tested(测试) each(每个) chamber()'s('s) temperature(温度) controller(控制器),(,) recording(记录) internal temperatures(内部温度) at(at) 10-(10-)minute(分钟) intervals(间隔),(,) to(to) ensure(确保) the integrity(完整性) of(of) the equipment(设备) and() the consistency(一致性) of(of) its(它的) output(输出) to(to) maintain(保持) an(an) exact(精确) and() controlled(受控) environment(环境) during(during) a(a) 48-(48-)hour(小时) period(期间),(,) during(during) which(which) the chambers() were(were) not() opened(打开).(.)
The effectiveness(有效性) of(of) the chambers(洞室) on(on) the effects(影响) of(of) temperature(温度) on(on) developmental(发育) rates(速率) was(was) assessed(评估) with(with) two(两种) biological assays(生物测定):(:) budbreak(萌芽) progress(进展) of(of) peach() floral(花卉) buds(花芽) warm()-()forced(强迫) at(at) different(不同) temperatures(温度),(,) and() sunflower(向日葵) seed(种子) germination(萌发).(.) Both() budbreak(budbreak) and() germination(萌发) showed(显示出) a(a) clear(明显) temperature(温度)-()dependent(依赖性) effect(影响) on(on) development(发展),(,) with(with) each() decrease(减少) in(in) temperature(温度) slowing(减缓) development(发育) form(形成) the previous(先前) temperatures().(.)
Understanding(了解) the minimum temperature(最低温度) for(for) development(发育) is() an(an) important(重要) realm(领域) of(of) knowledge(知识) for(for) modeling(模拟) plant(植物) phenology(物候).(.) The relationship(关系) between(between) development(发育) rate(速率) and() suboptimal(次优) temperatures(温度) can(可以) be(be) used(使用) easily(容易地) to(to) calculate(计算) an(an) estimated(估计) base(基础) temperature(温度) for(for) optimal(最佳) growth(生长).(.)
These(这些) newer(较新) inexpensive(廉价) temperature(温度)-()controllers(控制器) will() allow(允许) horticulturists(园艺),(,) agronomists(农艺师),(,) foresters(林业),(,) and() educators(教育工作者) to(to) design(设计) and() perform(执行) experiments(实验) when(when) multiple(多个) controlled(受控)-()temperature(温度) environments(环境) are(are) required(需要) without(而无) access(接入) to(to) specialized(专门) facilities(设施) or() skills(技能).(.) Off(Off)-()the-()shelf(现成),(,) easy(易于) to(to) use(使用) components(组件) offer(提供) the potential(可能) to(to) expand(扩展) greatly(极大地) the community(社区) of(of) researchers(研究人员) who(who) are() able(能够) to(to) incorporate(纳入) temperature(温度) physiology(生理学) into(into) their() investigations(研究) of(of) plant(植物) development(发育) and() phenology(物候学),(,) particularly(特别) workers(工作者) outside(以外) of(of) traditional(传统) research(调查) institutions(机构).(.)

新闻订阅

  • 科学
  • 技术
  • 医学

新闻分享