In date palm Phoenix dactylifera L. male （pollen bearing） and female （fruit bearing） inflorescences are on separate palms. To ensure good fertilization and better yield, artificial pollination is carried out in da...In date palm Phoenix dactylifera L. male （pollen bearing） and female （fruit bearing） inflorescences are on separate palms. To ensure good fertilization and better yield, artificial pollination is carried out in date plantations, where pollen harvested from male flowers are used for artificial pollination which is usually done manually. Often, the availability of male flowers becomes scarce due to the high demand to take up pollination during the short period of time when the female flowers are receptive. We assessed the comparative efficiency of using pollen to manually pollinate female date palm flowers in the field using sponge pieces charged with harvested pollen as compared to the traditional practice of the farmers using male inflorescences. Results revealed that fruit set （%）, fructification （%）, yield per bunch （kg） besides fruit weight, length and breadth were statistically similar in the two pollination methods evaluated. The sponge method of manual pollination can therefore serve as a viable alternative to the traditional method of pollination with the possibility of using stored pollen especially where male palms are scarce and pollen is difficult to obtain.展开更多
Professor Li Yuan-wen is a tutor of doctoral candidates of Beijing university of Chinese medicine. He has combined traditional Chinese and modern medicine in treating skin diseases for more than 30 years in clinical h...Professor Li Yuan-wen is a tutor of doctoral candidates of Beijing university of Chinese medicine. He has combined traditional Chinese and modern medicine in treating skin diseases for more than 30 years in clinical his clinical practice, scientific research and education. He has rich experience in treating all kinds of complex skin diseases and holds a unique opinion. We summarize some of his clinical experience in the treatment of eczema.展开更多
文摘In date palm Phoenix dactylifera L. male （pollen bearing） and female （fruit bearing） inflorescences are on separate palms. To ensure good fertilization and better yield, artificial pollination is carried out in date plantations, where pollen harvested from male flowers are used for artificial pollination which is usually done manually. Often, the availability of male flowers becomes scarce due to the high demand to take up pollination during the short period of time when the female flowers are receptive. We assessed the comparative efficiency of using pollen to manually pollinate female date palm flowers in the field using sponge pieces charged with harvested pollen as compared to the traditional practice of the farmers using male inflorescences. Results revealed that fruit set （%）, fructification （%）, yield per bunch （kg） besides fruit weight, length and breadth were statistically similar in the two pollination methods evaluated. The sponge method of manual pollination can therefore serve as a viable alternative to the traditional method of pollination with the possibility of using stored pollen especially where male palms are scarce and pollen is difficult to obtain.
基金The Beijing municipal commission of science and technology"10 kinds of diseases and 10 kinds of medicines"subject(number:Z131100002513013)The Beijing municipal administration of traditional Chinese medicine"TCM external treatment"project(number:WZF2012-03)Project from Human Resources Dept of Dongfang Hospital"Dongfang Famous Doctors"
文摘Professor Li Yuan-wen is a tutor of doctoral candidates of Beijing university of Chinese medicine. He has combined traditional Chinese and modern medicine in treating skin diseases for more than 30 years in clinical his clinical practice, scientific research and education. He has rich experience in treating all kinds of complex skin diseases and holds a unique opinion. We summarize some of his clinical experience in the treatment of eczema.
