The information related with results of a project on germplasm characterization of three Lotus species, important as forage plants, curried out in five environments of the central-southern zone of Chile, was reviewed....The information related with results of a project on germplasm characterization of three Lotus species, important as forage plants, curried out in five environments of the central-southern zone of Chile, was reviewed. An evaluation was made of 12 L. corniculatus cultivars introduced from different parts of the world, as well as germplasm naturalized in Chile, being 11 accessions of L. tenuis and 21 accessions ofL. uliginosus collected from 33°S to 38°S and 38°S to 45°S, respectively. Phenological, morphological, and agronomical characters were evaluated. Nitrogen fixation in field conditions and concentrations of condensed tannins in herbage were also included. It is concluded that there are cultivars of high value in L. corniculatus introduced germplasm which can be recommended for different environments of the central zone of Chile, as well as for local species breeding programmes. Information obtained from L. tenuis and L. uliginosus accessions shows genetic variability within both species. L. tenuis germplasm is adapted to clay, medium-textured, or sandy soils with water restrictions and phosphorous deficiency. Therefore, characterized accessions could be used to breed cultivars for low input production systems in constrained environments. L. uliginosus accessions include genotypes collected in sites with acid soils and variable tannin content in plant tissues that may be promissory genetic materials for breeding programmes with the objective of producing cultivars for animal production systems for the wet and acid soils in the southern zone of the country.展开更多
With rutin standard sample as the comparison, flavonoid extraction rate as an indicator, UV-2450 ultraviolet visible light spectrophotometer to measure flavonoid content in planted Trollius chinensis through orthogona...With rutin standard sample as the comparison, flavonoid extraction rate as an indicator, UV-2450 ultraviolet visible light spectrophotometer to measure flavonoid content in planted Trollius chinensis through orthogonal experiment, this experiment optimizes process condition of flavonoid in Trollius chinensis through water extraction and ethanol extraction. The result shows that flavonoid extraction rate of Trollius chinensis through ethanol extraction method is obviously higher than water extraction, and the optimal extraction process condition is： ethanol concentration is 75%, extraction time is 90min, extraction times are 3, and fluid material ratio is 20：1.展开更多
Researches on biological characters, ecological functions and standardized planting technology of Saussurea in Xinjiang were conducted for the extension of the planting technology in Xinjiang, development of Chinese h...Researches on biological characters, ecological functions and standardized planting technology of Saussurea in Xinjiang were conducted for the extension of the planting technology in Xinjiang, development of Chinese herbal medicine and ecological restoration in high mountains, forming a system of standardized planting technology for Saussurea, including seedling culture, transplanting, regulation in field and prevention against diseases展开更多
The physicochemical analysis was carried out to quantify the total soluble solids, acidity, pH, ascorbic acid contents and pulp colour of eight selected durian hybrid clones. The aim of this study was to select the mo...The physicochemical analysis was carried out to quantify the total soluble solids, acidity, pH, ascorbic acid contents and pulp colour of eight selected durian hybrid clones. The aim of this study was to select the most promising durian hybrids for commercialization. The durian hybrid fruits were collected in an established durian research plot. All tested characteristics with the exception for total soluble solids （TSS） showed significant differences （P 〈 0.05） amongst the eight durian hybrids with four check cultivars. F1 hybrid 15-3 had significantly higher pH （7.25） and lower titratable acidity （0.09%） than other hybrids. While for ascorbic acid content, durian hybrid 7-3 （26.13 rag/100 g） showed significantly higher than other hybrids. As for pulp colour, hybrids 1-15, 1-17 and 7-20 were yellowish orange/deep yellow. Even though there was no significant differences for TSS, three durian hybrids showed value above 39.00 °Brix and there were hybrid 14-3 （39.97 °Brix）, hybrid 8-16 （39.83 °Brix） and hybrid 7-3 （39.50 °Brix）. Based on the results of this study, Fl hybrids durian 1-15, 7-3, 8-16, 14-3 and 15-3 shall become successful candidates for recommendation to farmers for commercial production in Malaysia. However, further evaluations on fruit eating quality and stability of the hybrids should be completed prior to recommendation for commercialization.展开更多
文摘The information related with results of a project on germplasm characterization of three Lotus species, important as forage plants, curried out in five environments of the central-southern zone of Chile, was reviewed. An evaluation was made of 12 L. corniculatus cultivars introduced from different parts of the world, as well as germplasm naturalized in Chile, being 11 accessions of L. tenuis and 21 accessions ofL. uliginosus collected from 33°S to 38°S and 38°S to 45°S, respectively. Phenological, morphological, and agronomical characters were evaluated. Nitrogen fixation in field conditions and concentrations of condensed tannins in herbage were also included. It is concluded that there are cultivars of high value in L. corniculatus introduced germplasm which can be recommended for different environments of the central zone of Chile, as well as for local species breeding programmes. Information obtained from L. tenuis and L. uliginosus accessions shows genetic variability within both species. L. tenuis germplasm is adapted to clay, medium-textured, or sandy soils with water restrictions and phosphorous deficiency. Therefore, characterized accessions could be used to breed cultivars for low input production systems in constrained environments. L. uliginosus accessions include genotypes collected in sites with acid soils and variable tannin content in plant tissues that may be promissory genetic materials for breeding programmes with the objective of producing cultivars for animal production systems for the wet and acid soils in the southern zone of the country.
文摘With rutin standard sample as the comparison, flavonoid extraction rate as an indicator, UV-2450 ultraviolet visible light spectrophotometer to measure flavonoid content in planted Trollius chinensis through orthogonal experiment, this experiment optimizes process condition of flavonoid in Trollius chinensis through water extraction and ethanol extraction. The result shows that flavonoid extraction rate of Trollius chinensis through ethanol extraction method is obviously higher than water extraction, and the optimal extraction process condition is： ethanol concentration is 75%, extraction time is 90min, extraction times are 3, and fluid material ratio is 20：1.
文摘Researches on biological characters, ecological functions and standardized planting technology of Saussurea in Xinjiang were conducted for the extension of the planting technology in Xinjiang, development of Chinese herbal medicine and ecological restoration in high mountains, forming a system of standardized planting technology for Saussurea, including seedling culture, transplanting, regulation in field and prevention against diseases
文摘The physicochemical analysis was carried out to quantify the total soluble solids, acidity, pH, ascorbic acid contents and pulp colour of eight selected durian hybrid clones. The aim of this study was to select the most promising durian hybrids for commercialization. The durian hybrid fruits were collected in an established durian research plot. All tested characteristics with the exception for total soluble solids （TSS） showed significant differences （P 〈 0.05） amongst the eight durian hybrids with four check cultivars. F1 hybrid 15-3 had significantly higher pH （7.25） and lower titratable acidity （0.09%） than other hybrids. While for ascorbic acid content, durian hybrid 7-3 （26.13 rag/100 g） showed significantly higher than other hybrids. As for pulp colour, hybrids 1-15, 1-17 and 7-20 were yellowish orange/deep yellow. Even though there was no significant differences for TSS, three durian hybrids showed value above 39.00 °Brix and there were hybrid 14-3 （39.97 °Brix）, hybrid 8-16 （39.83 °Brix） and hybrid 7-3 （39.50 °Brix）. Based on the results of this study, Fl hybrids durian 1-15, 7-3, 8-16, 14-3 and 15-3 shall become successful candidates for recommendation to farmers for commercial production in Malaysia. However, further evaluations on fruit eating quality and stability of the hybrids should be completed prior to recommendation for commercialization.
