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921.
选择荞麦、苡仁、绿豆为主要原材料,分别研究其加工工艺。采用正交试验和感官评定确定了产品的合理配方:荞麦5g,苡仁4g,绿豆11g,糖32g,及添加剂的最佳配比为黄原胶∶CMC∶β-环状糊精=3∶2∶5。并对影响风味、口感的因素进行了研究,据此研制出一种营养丰富、食用方便的健康食品。 相似文献
922.
采用2,4-二硝基苯肼法,测定了经不同烹调技法处理后的几种常见蔬菜中的VC含量。结果表明,不同的烹调技法及加热时间的长短对蔬菜中的VC造成不同程度的损失,并呈现出规律性。 相似文献
923.
924.
925.
Shengwu Hu Chengyu Yu Huixian Zhao Genlou Sun Suolao Zhao Miroslava Vyvadilova Vratislav Kucera 《Euphytica》2007,154(1-2):9-16
Summary The genetic diversity and relationships among 63 rapeseed accessions, including 34 Chinese, 22 Czech, 2 Swedish, 2 German,
one French and 2 Canadian accessions, were evaluated by nine agronomically important characters in the field at Yangling,
Shaanxi, China. Significant differences between Chinese and European group in plant height, setting position of the first
primary branch, number of siliques of the terminal raceme, thousand seed weight and seed yield per plant were detected. There
were significant variations in nine agronomic characters among the tested rapeseed accessions. Ward’s minimum variance cluster
analysis based on Mahalanobis distances on the raw data of nine agronomic characters clearly separated the European accessions
from the Chinese ones. However, the Chinese accessions with erucic acid free and/or low glucosinolates could not be separated
from those Chinese accessions with both high erucic acid and glucosinolates. In general, cluster analysis of the 63 accessions
based on the selected agronomic characters was consistent with known pedigree information and geographic origin, as well as
the previous RAPD results of these accessions. The European rapeseed could be important germplasm resources for enriching
the genetic background of Chinese rapeseed, and vice versa. 相似文献
926.
现有平流组合加热式蔬菜脱水机存在热交换不充分和干燥速度慢等问题。对现有设备进行了穿流组合加热技术改造:将送风管和引风管连接管的直径自上而下依次减小,满足了各层干燥箱对送风量和引风量的不同要求;采用冲孔板制造输送链板,满足了穿流供风的要求;采用供风管变截面供风技术,提高了供风的均匀性。设备改造后,分别对胡萝卜和甘蓝两种蔬菜进行了脱水干燥对比试验。结果表明,采用穿流组合加热时,不仅干燥速度快,而且其平均单位脱水的能耗分别由平流组合加热的7.03,7.29MJ/kg下降为6.83,6.65MJ/kg。 相似文献
927.
928.
Homozygous transgenic rice lines expressing GNA with enhanced resistance to the rice sap-sucking pest Laodelphax striatellus 总被引:5,自引:0,他引:5
Homozygous transgenic rice lines expressing snowdrop lectin, Galanthus nivalis agglutinin (GNA), were investigated for resistance to the rice small brown planthopper (SBPH), Laodelphax striatellus, an important rice sap‐sucking pest causing yield losses and serving as vector for some important rice viruses. Insect bioassay results revealed that both the GNA‐expressing homozygous lines tested significantly inhibited SBPH by decreasing its survival, its overall fecundity and retarding development. This is the first report on homozygous transgenic rice lines expressing GNA conferring enhanced resistance to SBPH. This result suggests that transgenic rice expressing GNA will be useful in rice pest resistance breeding, as an alternative to conventional breeding for the control of SBPH, and potentially alleviating damage caused by the viruses it transmits. 相似文献
929.
我国加入UPOV公约1991年文本需要研究的几个问题 总被引:6,自引:0,他引:6
植物新品种保护是我国实施知识产权战略的重要组成部分. 1997年 3月 20日,我国颁布了第一个农业领域知识产权保护的法规--<中华人民共和国植物新品种保护条例>(以下简称<条例>). 1999年 4月 23日,我国正式签署<植物新品种保护公约>( 1978年文本),加入国际植物新品种保护联盟 (UPOV),成为国际植物新品种保护联盟第 39个成员. 2000年 ,全国人大常委会通过的<种子法>进一步明确规定 ,我国实行植物新品种保护制度.<条例>实施 6年来,有关的配套规章制度和体系建设已初具规模,对我国农业发展起到了积极地推动作用,尤其在促进育种技术创新、推动育种行业产业化、优化育种资源配置等方面取得了显著成效.然而当前,我国也正面临着加入 UPOV公约 1991文本的压力和挑战. 相似文献
930.
The Deterioration of Eating and Cooking Quality Caused by High Temperature During Grain Filling in Early-Season indica Rice Cultivars 总被引:4,自引:0,他引:4
L. J. Zhong F. M. Cheng X. Wen Z. X. Sun G. P. Zhang 《Journal of Agronomy and Crop Science》2005,191(3):218-225
The effect of temperature during grain filling on eating and cooking quality of early-season indica rice was investigated by using four cultivars with different amylose content. Starting from flowering stage until maturity, the plants of all cultivars were subjected to two temperature treatments, referred as optimum (mean daily air temperature, 22 °C) and high (32 °C) temperature regimes. The results showed that the effect of high temperature on apparent amylose content and gel consistency in milled rice was cultivar-dependent. Under high temperature, amylose content increased for cv. Jiayu353 and remained little changed for cv. Guangluai4, which had intrinsically higher amylose content, and decreased for cv. Zhefu49 and cv. Jiazao935, which had lower amylose content. By contrast, high temperature reduced or kept stable gel consistency values for cultivars with higher amylose content and increased gel consistency values for those with lower amylose content. Moreover, high temperature significantly increased the gelatinization temperature of all cultivars. Pasting profiles and X-ray diffraction pattern of rice were also affected by temperature. The results suggest that high temperature during grain filling change the component and crystalline structure of starch and result in deterioration of eating and cooking quality for early-season indica rice. 相似文献