荞麦抗旱性研究进展   总被引：1，自引：1，他引：0  

万燕  韦爽  贾晓凤  刘曼  谭茂玲  宋超  向达兵  赵钢 《作物杂志》2015,(2):23-26

荞麦是一种珍贵的药食同源作物,随着人们对健康饮食的逐渐重视,荞麦及其加工产品在人们生活中的地位越发重要。中国拥有丰富的荞麦资源,多种植在干旱或半干旱的冷凉高原山区及边远山区。干旱严重影响荞麦的产量和品质,提高荞麦抗旱性在荞麦生产中起着重要的作用。为此,从干旱对荞麦形态特征、抗旱性的生理生化基础、干旱对荞麦产量及品质的影响等方面阐述了荞麦抗旱性的研究进展,并对荞麦抗旱分子机理方面的研究进行了展望。  相似文献   

无人机技术在高标准基本农田建设项目竣工验收中的应用     

谭福林  阳益虎 《农业工程》2016,6(5):92-94

结合韶关市曲江区沙溪镇高标准基本农田建设项目工程复核需求，采用无人机航摄技术，对获取的影像数据从航摄前准备、航飞、影像快拼图制作、像控点布设、空三加密到后期生成DEM 、DOM和DLG图件的制作技术进行了研究探索。   相似文献   

某高铁隧道小口径井抽水试验探讨     

谭茂兰  武兴龙  肖纲通  覃明彩  辛武 《绿色科技》2020,(6):209-211

指出了在某高铁隧道勘察中采用小口径抽水试验方法,具有操作简单便捷,成本低的优势。通过小口径井抽水试验查明场地的水文地质条件,得出了水文地质原始数据资料,根据单孔稳定流承压水非完整井的水文地质实际情况,选取合适的公式分别计算出了隧道岩层渗透系数及影响半径,为高铁隧道的勘察设计及顺利施工提供参考。  相似文献   

Effects of Dietary Supplementation of Barodon on Growth Performance,Innate Immunity and Disease Resistance of Juvenile Olive Flounder,Paralichthys olivaceus,Against Streptococcus iniae     

Chang‐Hoon Shin  Hien Thi Dieu Bui  Samad Rahimnejad  Ji‐Hoon Cha  Byung‐Woo Yoo  Bo‐Kyeun Lee  Hyung‐Jin Ahn  Soo‐Il Choi  Yun‐Jeong Choi  Yong‐Ho Park  Jeong‐Dae Kim  Kyeong‐Jun Lee 《Journal of the World Aquaculture Society》2014,45(3):258-268

This study was conducted to evaluate the effects of dietary supplementation of Barodon, an anionic alkali mineral complex, on growth, feed utilization, humoral innate immunity and disease resistance of olive flounder. A basal experimental diet was used as a control and supplemented with 0.1, 0.2, 0.3, 0.4, or 0.5% Barodon. Triplicate groups of fish (26.4 ± 0.2 g) were fed one of the diets to apparent satiation twice daily for 10 wk. The growth performance was enhanced (P < 0.05) linearly and quadratically in fish fed diets containing Barodon compared with that in fish fed the control. Feed utilization was significantly improved by Barodon supplementation. Serum lysozyme and antiprotease activities were increased quadratically in Barodon fed groups. Also, significantly higher superoxide dismutase activity was found in Barodon‐fed fish. Dietary supplementation of 0.1–0.3% Barodon resulted in significant enhancement of fish disease resistance against Streptococcus iniae. The findings in this study indicate that dietary supplementation of Barodon can enhance growth, feed utilization, innate immunity, and disease resistance of olive flounder and that the optimum level seems to be 0.1% in diets.  相似文献   

云岭水果笋高产栽培技术研究   总被引：3，自引：3，他引：0  

赵香帅  谭宏超  谭汝强 《世界竹藤通讯》2020,18(1):34

试验研究了不同地区、不同栽培措施对高氏甜龙竹发笋及笋产量的影响。结果表明：在云南勐海县、普洱市海拔1 300~1 700 m，重庆市武隆区、四川宜宾市等地海拔600 m以下的地区适合栽种笋用高氏甜龙竹；高氏甜龙竹栽植适宜的株行距为2 m×4 m，栽种时，以每丛留3~4株母竹、米径控制在4~8 cm为宜；在母竹高2.5 m处封顶可促进枝叶生长和笋芽萌发，增加笋产量；施肥、浇水、竹丛覆盖和剥土晒蔸等措施均能提高笋产量。  相似文献   

Differences in Ion Accumulation and Salt Tolerance among Glycine Accessions     

J. M. Lenis  M. Ellersieck  D. G. Blevins  D. A. Sleper  H. T. Nguyen  D. Dunn  J. D. Lee  J. G. Shannon 《Journal of Agronomy and Crop Science》2011,197(4):302-310

Salinity reduces crop yield by limiting water uptake and causing ion‐specific stress. Soybean [Glycine max (L.) Merr.] is sensitive to soil salinity. However, there is variability among soybean genotypes and wild relatives for salt tolerance, suggesting that genetic improvement may be possible. The objective of this study was to identify differences in salt tolerance based on ion accumulation in leaves, stems and roots among accessions of four Glycine species. Four NaCl treatments, 0, 50, 75 and 100 mm , were imposed on G. max, G. soja, G. tomentella and G. argyrea accessions with different levels of salinity tolerance. Tolerant genotypes had less leaf scorch and a greater capacity to prevent Na⁺ and Cl^? transport from soil solution to stems and leaves than sensitive genotypes. Magnitude of leaf injury per unit increase in leaf Na⁺ or Cl^? concentrations was lower in tolerant than in susceptible accessions. Also, plant injury was associated more with Na⁺ rather than with Cl^? concentration in leaves. Salt‐tolerant accessions had greater leaf chlorophyll‐meter readings than sensitive genotypes at all NaCl concentrations. Glycine argyrea and G. tomentella accessions possessed higher salt tolerance than G. soja and G. max genotypes.  相似文献   

高原特色中药材病虫草鼠害发生危害初探     

马桂明  王忠华  杨春震  黄新动  王勇  谭宽映  余光海  屈天尧  窦秦川 《中国植保导刊》2016,(4):45-51

2012—2014年,针对云南省规模化种植的8种高原特色中药材,采用分类、分级普查法,开展病虫草鼠害调查研究,发现共有28种病虫、22种杂草、6种害鼠;总体发生特点为病害重于虫害;草害发生普遍,程度因种植方式而异;鼠害普遍较重,卡式小鼠为优势种。用统计图表法、t测验、相关性分析、回归分析等方法,对根腐病、地老虎的发生为害与气温、降雨量等气象条件的相关性进行了具体分析,结果表明玛咖根腐病的病情指数与旬均气温、旬降雨量呈显著正相关,滇重楼根腐病相关性次之,珠子参根腐病相关性较小;地老虎的虫情指数与旬均气温之间有一定相关性。  相似文献   

黑龙江省汤原县团结林场森林资源调查情况分析     

邵保华  田学志 《林业勘查设计》2011,(4)

从3个方面分别介绍了黑龙江省汤原县林业局所属的团结林场的自然、资源及经济情况。  相似文献   

Temporal kinetics of bovine mammary IgG secretion into colostrum and transition milk     

Kasey M Schalich  Olivia M Reiff  Blake T Nguyen  Cassandra L Lamb  Cecilia R Mondoza  Vimal Selvaraj 《Journal of animal science》2021,99(5)

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Molecular identification and relative abundance of microorganisms in douchi koji and salted egg white sufu during processing     

Yi-Chao Chen  Ren-Bao Liaw  Yu-Sheng Liao  Amornrat Wanangkarn  Wen-Shyan Chen  Fa-Jui Tan 《Animal Science Journal》2021,92(1):e13567

A novel animal protein-based douchi koji-inoculated steamed salted egg white sufu (SEWS) has been developed. This study determined the relative abundance of microorganisms in the douchi koji and semi-finished (5-day fermentation) and finished (5-day fermentation and 14-day ripening) SEWS by using 16S and 18S ribosomal DNA and gene-cloning methods. The results revealed that Bacillus spp. and Aspergillus oryzae were dominant in the douchi koji. In the semi-finished SEWS, the percentages of Bacillus amyloliquefaciens and Bacillus subtilis were considerably lower, whereas those of Enterococcus and Staphylococcus were substantially higher. In the finished SEWS, Bacillus spp. became dominant again and A. oryzae was the only fungus detected. In conclusion, by using molecular techniques, microbial population dynamics in SEWS can be evaluated. During processing, the relative abundance of microorganisms in SEWS changed and Bacillus spp. and A. oryzae remained dominant. This study provides crucial information for designing starter cultures for producing SEWS.  相似文献