[Objective] This study was conducted to develop some new iron yam (Dioscorea opposita) varieties with excellent cooking, eating and nutritional qualities. [Method] The fresh weight per plant, drying rate, dry weight...[Objective] This study was conducted to develop some new iron yam (Dioscorea opposita) varieties with excellent cooking, eating and nutritional qualities. [Method] The fresh weight per plant, drying rate, dry weight per plant, yield, allan- toin content, water soluble extract content and disease resistance of seven new iron yam cultivars (No.1, No.2, No.4, No.6, No.8, No.9 and No.10) obtained through spaceflight mutation breeding were measured and compared with control (No.11). Then, the nutrition quality of two elite cultivars No. 6 and No.10 was determined by comparing with the control. [Result] The eight iron yam cultivars ranked in descend- ing order of their fresh weight per plant as follows: No.6(0.255 kg)〉No.10(0.254 kg)〉 No.4(0.242 kg)〉No.9(0.237 kg)〉No.1(0.233 kg)〉No.11(0.206 kg)〉No.2(0.191 kg)〉No.8 (0.157 kg). There was no significant difference in fresh weight per plant between No.6 and No.10, but extremely significant difference between No.6 and the control, No.10 and the control. The eight iron yam cultivars ranked in descending order of their drying rate as follows: No.2 (32.641%)〉No.10 (32.230%)〉No.9 (28.223%)〉No.6 (25.174%)〉No.8(25.122%)〉No.11 (25.043%)〉No.1 (24.291%)〉No.4(20.234%). The dry- ing rate of both No.6 and No.10 was higher than that of the control. The eight iron yam cultivars ranked in descending order of their dry weight per plant as follows: No.10(0.082 kg)〉No.9(0.067 kg)〉No.6(0.064 kg)〉No.2(0.062 kg)〉No.1(0.056 kg)〉No.11 (0.052 kg)〉No.4 (0.049 kg)〉No.8 (0.039 kg). The dry weight per plant of both No.6 and No.10 is higher than that of the control. The eight iron yam cultivars ranked in descending order of their allantoin content as follows No.6 (0.484%)〉No.4 (0.467%)〉 No.10 (0.399%)〉No.ll (0.386%)〉No.9 (0.378%)〉No.8 (0.350%)〉No.2 (0.342)〉No.1 (0.325%). The allantoin content of No.6 was significantly higher than that of No.10 and the control. There was significant difference in allantoin content between No.6 and No.10, but no significant difference between No 10 and the control. The eight iron yam cultivars ranked in descending order of their extract content as follows No. 6(20.49%)〉No.2(16.01%)〉No.4(15.54%) 〉No. 10(15.35%)〉No. 1 (14.48%)〉No. 11 (14.10%) 〉No.9(13.88%)〉No.8(11.87%). The extract content of No.6 exhibited extremely sig- nificant difference with that of No.10 and the control, and the extract content of No. 10 was also significantly different from that of the control. The taste of No.10 was dry, soft, floury, sweet and fragrant, better than that of the other seven cultivars. No.6 had the strongest resistance to Gloeosporium pestis and Cylindrosporium dioscoreae. No.10 had a middle resistance to G. pestis and a strong resistance to C. dioscoreae. No.6 and No.10 had higher contents of starch, reducing sugar, pro- tein and ash, lower water content and better nutrition quality than the control. [Conclusion] No.10 can be popularized as a new variety of edible iron yam, and No.6 as a new variety of medicinal iron yam.展开更多
Sugar cane is a principal agricultural product in Egypt. Over 48% of its area is grown in Qena governorate. The agricultural extension system should identify problems and needs for farmers and provide them with their ...Sugar cane is a principal agricultural product in Egypt. Over 48% of its area is grown in Qena governorate. The agricultural extension system should identify problems and needs for farmers and provide them with their solutions. The main objective of this paper was to know production and marketing problems for sugar cane growers in Qena govemorate, Egypt. Six focus groups were organized for farmers in two villages and a survey was conducted on 224 extension personnel or 93 % of all extension personnel at districts and villages levels in Qena govemorate to collect necessary data. The most important perceived production problems were: spread of weeds and insects, weak role of agricultural extension, shortage and high costs of fertilizers and labor, and high costs of production, insecticides and irrigation. The most important perceived marketing problems were: high costs and unsystematic cutting, shortage and high costs of transportation, delay of cutting and delivery of product to the factory, inaccurate weigh and low prices of the product. A great role lies on the agricultural extension system to identify such problems and provide farmers with their solutions in order to increase the agricultural productivity of this crop in Qena govemorate.展开更多
Lately,Tianlun International Hotels announced the appointment of Claudia Jiang as PR Director.Jiang will take charge of branding promotion and public relations,as well as brand management of Tianlun International Hote...Lately,Tianlun International Hotels announced the appointment of Claudia Jiang as PR Director.Jiang will take charge of branding promotion and public relations,as well as brand management of Tianlun International Hotels.Jiang graduated from the Beijing International Studies University and worked in HK CTS Hotels Co.Ltd.,responsible for brand standard establishment,public relations,new media applications,events,exhibitions,advertisements and promotions.展开更多
基金Supported by Special Fund for Public Health from State Administration of Traditional Chinese Medicine(Financial Institution[2011]76)Special Fund for Scientific Research of Traditional Chinese Medicine Industry(201207002)+1 种基金Henan Social Sciences Planning Project(2013BJJ084)Henan Industry-University-Research Institute Cooperation Project(142107000078)
文摘[Objective] This study was conducted to develop some new iron yam (Dioscorea opposita) varieties with excellent cooking, eating and nutritional qualities. [Method] The fresh weight per plant, drying rate, dry weight per plant, yield, allan- toin content, water soluble extract content and disease resistance of seven new iron yam cultivars (No.1, No.2, No.4, No.6, No.8, No.9 and No.10) obtained through spaceflight mutation breeding were measured and compared with control (No.11). Then, the nutrition quality of two elite cultivars No. 6 and No.10 was determined by comparing with the control. [Result] The eight iron yam cultivars ranked in descend- ing order of their fresh weight per plant as follows: No.6(0.255 kg)〉No.10(0.254 kg)〉 No.4(0.242 kg)〉No.9(0.237 kg)〉No.1(0.233 kg)〉No.11(0.206 kg)〉No.2(0.191 kg)〉No.8 (0.157 kg). There was no significant difference in fresh weight per plant between No.6 and No.10, but extremely significant difference between No.6 and the control, No.10 and the control. The eight iron yam cultivars ranked in descending order of their drying rate as follows: No.2 (32.641%)〉No.10 (32.230%)〉No.9 (28.223%)〉No.6 (25.174%)〉No.8(25.122%)〉No.11 (25.043%)〉No.1 (24.291%)〉No.4(20.234%). The dry- ing rate of both No.6 and No.10 was higher than that of the control. The eight iron yam cultivars ranked in descending order of their dry weight per plant as follows: No.10(0.082 kg)〉No.9(0.067 kg)〉No.6(0.064 kg)〉No.2(0.062 kg)〉No.1(0.056 kg)〉No.11 (0.052 kg)〉No.4 (0.049 kg)〉No.8 (0.039 kg). The dry weight per plant of both No.6 and No.10 is higher than that of the control. The eight iron yam cultivars ranked in descending order of their allantoin content as follows No.6 (0.484%)〉No.4 (0.467%)〉 No.10 (0.399%)〉No.ll (0.386%)〉No.9 (0.378%)〉No.8 (0.350%)〉No.2 (0.342)〉No.1 (0.325%). The allantoin content of No.6 was significantly higher than that of No.10 and the control. There was significant difference in allantoin content between No.6 and No.10, but no significant difference between No 10 and the control. The eight iron yam cultivars ranked in descending order of their extract content as follows No. 6(20.49%)〉No.2(16.01%)〉No.4(15.54%) 〉No. 10(15.35%)〉No. 1 (14.48%)〉No. 11 (14.10%) 〉No.9(13.88%)〉No.8(11.87%). The extract content of No.6 exhibited extremely sig- nificant difference with that of No.10 and the control, and the extract content of No. 10 was also significantly different from that of the control. The taste of No.10 was dry, soft, floury, sweet and fragrant, better than that of the other seven cultivars. No.6 had the strongest resistance to Gloeosporium pestis and Cylindrosporium dioscoreae. No.10 had a middle resistance to G. pestis and a strong resistance to C. dioscoreae. No.6 and No.10 had higher contents of starch, reducing sugar, pro- tein and ash, lower water content and better nutrition quality than the control. [Conclusion] No.10 can be popularized as a new variety of edible iron yam, and No.6 as a new variety of medicinal iron yam.
文摘Sugar cane is a principal agricultural product in Egypt. Over 48% of its area is grown in Qena governorate. The agricultural extension system should identify problems and needs for farmers and provide them with their solutions. The main objective of this paper was to know production and marketing problems for sugar cane growers in Qena govemorate, Egypt. Six focus groups were organized for farmers in two villages and a survey was conducted on 224 extension personnel or 93 % of all extension personnel at districts and villages levels in Qena govemorate to collect necessary data. The most important perceived production problems were: spread of weeds and insects, weak role of agricultural extension, shortage and high costs of fertilizers and labor, and high costs of production, insecticides and irrigation. The most important perceived marketing problems were: high costs and unsystematic cutting, shortage and high costs of transportation, delay of cutting and delivery of product to the factory, inaccurate weigh and low prices of the product. A great role lies on the agricultural extension system to identify such problems and provide farmers with their solutions in order to increase the agricultural productivity of this crop in Qena govemorate.
文摘Lately,Tianlun International Hotels announced the appointment of Claudia Jiang as PR Director.Jiang will take charge of branding promotion and public relations,as well as brand management of Tianlun International Hotels.Jiang graduated from the Beijing International Studies University and worked in HK CTS Hotels Co.Ltd.,responsible for brand standard establishment,public relations,new media applications,events,exhibitions,advertisements and promotions.