Jules Janick

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Cuttings of a clone of A. annua L. (Asteraceae), grown under 16 h photoperiod for 55 days were transferred to six photoperiod treatments in the greenhouse. Under short photoperiods (8, 10, or 12 h), plants flowered after two weeks; plants under long photoperiods (16, 20, or 24 h) remained vegetative until termination of treatment after 10 weeks. When plants(More)
Artemisinin content of Artemisia annua L. plants grown under long days in a greenhouse was highly correlated (r = 0.931** and 0.954**, P = 0.01) with the same clones grown under long days in the field. The correlation of artemisinin content of clones grown in long days in tissue culture and in the greenhouse was r = 0.502*. Correlation of artemisinin(More)
Artemisinin was produced in differentiated shoot cultures of Artemisia annua L. but was undetected in callus or cell cultures. The growth regulators benzyladenine, kinetin, chlormequat, and daminozide, at concentrations which severely reduced rooting, reduced artemisinin production. A highly significant correlation (1% level) was observed between shoot(More)
BACKGROUND A critical analysis was made of cucurbit descriptions in Dioscorides' De Materia Medica, Columella's De Re Rustica and Pliny's Historia Naturalis, works on medicine, agriculture and natural science of the 1st century ce, as well as the Mishna and Tosefta, compilations of rabbinic law derived from the same time period together with cucurbit images(More)
Desiccation tolerance of celery (Apium graveolens L.) somatic embryos was increased by supplementation of embryo-production medium with 1 μM abscisic acid (ABA) or 1 mM proline, with highest survival obtained with a combination of 1 μM ABA and 1 mM proline. Addition of ABA and proline increased fatty acid accumulation by somatic embryos; the effect on fatty(More)
Eugene Garfield, a linguist, is the remarkable founder of the Institute for Scientific Information (ISI). In the 1960s, Garfield came up with an intriguing concept that has become indispensable to the scientific community, one that he has bankrolled into an influential publishing industry. The concept is that citations in a scientific paper can be used to(More)
BACKGROUND AND AIMS Beginning in the last two decades of the 14th century, richly illuminated versions of the Tacuinum Sanitatis, the Latin translation of an 11th-century Arabic manuscript known as Taqwim al-Sihha bi al-Ashab al-Sitta, were produced in northern Italy. These illustrated manuscripts provide a window on late medieval life in that region by(More)
HILE spinach (Spina& oleracea L.) is usually considered to be dioecious, W there is a continuous range of monoecious types as regards the proportion of pistillate to staminate flowers per plant. Sex determination in dioecious strains of spinach is controlled by a mechanism that acts as if it were a single factor pair; the pistillate plant is homozygous ( X(More)