排序方式: 共有27条查询结果,搜索用时 46 毫秒
11.
12.
从遗传变异系数,遗传力和遗传进度三方面分析了11份绿豆材料8个主要数量性状的遗传 潜力和选择效果,结果表明,绿豆单株粒重,单株粒数,单株英数的遗传变异大,遗传进度快,且遗传力较高,可供选择的余地较大,可于早代进行选择。 相似文献
13.
14.
对11份绿豆材料8个主要数量性状中其它7个性状与单株产量的通径分析结果表明,对单株产量起主要作用的是单株粒数。 相似文献
15.
AIM: To explore the effect of traditional Chinese medicine Qiliqiangxin on cardiomyocyte apoptosis after myocardial infarction (MI) in a rat model. METHODS: MI was induced in rats by ligation of the anterior descending coronary artery. The survivors were randomly divided into 3 groups: sham operation group, MI group and Qiliqiangxin treatment group (4 g穔g-1穌-1). After 28 days, the infarction size was measured. Apoptotic index (AI) was determined by TUNEL. The expression of Fas was detected by the method of immunohistochemistry in non-infarcted zones (NIZ), and the expression of xanthine oxidase (XO) and caspase-3 in myocardial tissue from NIZ was detected by Western blotting. In addition, XO activity, and O2 -? and OH? scavenging activity of myocardial tissues in the NIZ were measured by colorimetry. RESULTS: Compared with MI group, AI and the expression of Fas and caspase-3 in the NIZ were significantly depressed in Qiliqiangxin treatment group. Moreover, the activity of XO was significantly decreased while O2 -? and OH穝cavenging activity was significantly increased in Qiliqiangxin treatment group. Ventricular remodeling was attenuated. No significant difference in infarct size and XO expression level between Qiliqiangxin treatment group and MI group was observed. CONCLUSION: Qiliqiangxin may inhibit apoptosis of cardiomyocytes in the NIZ of rats by reducing reactive oxygen species and depressing the expression of Fas and caspase-3. 相似文献
16.
本文研究了有限布尔代数的原子问题,给出了关于有限布尔代数的原子的一些性质。 相似文献
17.
本文提出了由布尔代数所诱导的布尔环的概念,并应用布尔代数的运算性质,给出了布尔环的若干运算性质。 相似文献
18.
19.
20.
坝网结合库湾精养试验初报 总被引:1,自引:0,他引:1
库湾面积300亩,1987年套养网箱1.37亩,并对库湾实行混养精养,共投饲138384公斤,产鱼52762公斤,平均亩产175公斤;总产值122733元,盈利21532元。结果表明,在大中型水库渔业中,实行分割精养,配套网箱,以精养促粗养,是提高水库养鱼总产量和经济效益的重要途径。 相似文献