广玉兰新品种‘碧翠’的抗寒性评价及抗寒性指标筛选

为评价广玉兰新品种‘碧翠’的抗寒性以及筛选抗寒性评价指标,通过低温胁迫对‘碧翠’和‘埃克斯茅斯’抗寒性进行对照研究,测定其离体叶片的生理生化指标,对抗寒性进行综合评价及指标筛选.结果表明:随着温度的降低,两者的相对电导率(REC)和丙二醛(MDA)含量均逐渐升高,SOD活性和POD活性无明显变化规律,可溶性蛋白(SP)和游离脯氨酸(Pro)呈现先上升后下降的趋势,半致死温度(LT 50)均随气温的下降而降低,‘碧翠’LT 50为-3.03℃,‘埃克斯茅斯’LT 50为-4.28℃,与抗寒性综合分析结果相一致,‘碧翠’<‘埃克斯茅斯’.6个抗寒性指标中REC、SP两个生理生化指标是反应抗寒性强弱的较佳指标.     

Not to be Taken Seriously: Kiosks,Roadside Joys and Other Things That are Beneath Architectural Contempt

There is a profound egalitarianism driving Peter Cook 's fascination with pavilions, pop-ups and parasols. They are forms she finds manifested by people in cities everywhere. His every observation drives to the often quirky individuals who make and use these sometimes temporary, often fragile, but enduring structures. He argues for architectures that embrace these myriad constellated moments. It is from these highly idiosyncratic, but astute observations that the possibilities of a new type of architectural intelligence open up drawing on the everyday.