, 1985 本论文以7个秈稻品种为材料，分析苗期受稻瘟菌感染后叶片内成分变化及过氧化物酶、多酚氧化酶的活化规律。结果表明，抗病品种叶片内抗坏血酸、氨基氮含量比感病品种低，而木质素、游离酚、类黄酮含量比感病品种高。品种间还原糖、可溶性糖含量与抗病性不存在相关联系。水稻感病性按顺序是8叶期＞3叶期＞5叶期，感病与其叶片内抗坏血酸、还原糖、可溶性糖含量高及类黄酮、游离酚含量较低有关。酚类物质对不同生理小种孢子萌发的抑制程度不同。ZA1小种稻瘟菌可以侵染含酚量高的水稻品种，而ZB11只能侵染含酚量低的水稻品种 ...
黄新汉
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, 2005 1993~2004年在黄土高原半干旱区的陕西吴旗,安塞县进行了沙棘优良品种引种试验研究。通过引种国内不同地理种源20余种优良沙棘类型,引进10余种俄罗斯优良沙棘品种,采用家系选择法,初步筛选出生态经济型5种沙棘类型,经济型3种类型。前者生长迅速、树冠好、根系发达、郁闭快、水土保持效益好,且果实较大(果径0.8~0.9cm,百果重22~31g),单株产量2~3.5kg,V-C含量较高,其生态、经济性状较当地野生沙棘为好。此种类型沙棘适于在黄土丘陵区大面积荒沟、荒坡种植。通过引种俄罗斯大果 ...
白岗栓, 姜峻, 黄瑾, 李代琼
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Hyaluronic acid microneedles loaded with curcumin nanodrugs and new indocyanine green inhibits human tongue squamous carcinoma cells in vitro. [PDF]
Zhejiang Da Xue Xue Bao Yi Xue Ban, 2022 Xie X, Shan Y, Zhang X, Wu Y, Liao J.
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[A GA-BP neural network model based on spectrum-effect relationship for assessing spectrum-effect score and quality evaluation of Cassia seeds extract]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoYan H, Wang H, Zou C.
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[Study on CT features of congenital branchial cleft anomaly in children]. [PDF]
Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi, 2022 Zhou Y, Chen W, Xu R, Chen J, Li X.
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Nan Fang Yi Ke Da Xue Xue BaoHuang L, Cheng S, Liu Z, Zou C, Yan H.
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, 2003 植被恢复与重建是我国西部及黄土高原地区生态环境建设与区域经济开始的基础，同时，对人类的生存和社会的发展也具有特殊的重要意义。1、揭示了黄土高原天然植被在森林草原、典型草原和荒漠草原地带彼此镶嵌结构下所呈现的微域分异与分区域宏观分异的总格局与现状。基于对植被形成特征与演替规律的调查分析，发现植被演替在时间上存在年际性、季节性和阶段性变化；在空间上表现为群落盖度和种群密度的差异。2、针对黄土高原退化植被的分布、类型及其成过程，以造林学、草原学和植物群落学为理论基础 ...
王静 +6 more
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[Analysis of dietary composition in patients with liver cirrhosis: an observational study based on the database from the National Health and Nutrition Examination survey]. [PDF]
Zhonghua Gan Zang Bing Za ZhiChen XY +6 more
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