共查询到20条相似文献,搜索用时 86 毫秒
1.
为鉴定并筛选出适宜高原夏菜生产的优良大白菜品种,实施了安定区高原夏菜大白菜新品种引进试验。引进了6个品种,对不同品种播种后的出苗率、植株长势、抗病性和净菜产量等指标分别进行了比较分析。结果表明:参试品种中金盈(杂交一代)出苗率高、抗病性强、丰产性好,适宜在安定区推广种植。 相似文献
2.
3.
4.
<正>大白菜容易管理、产量高、市场售价高,深受菜农欢迎,目前已成为鹰潭市月湖区早春蔬菜的主栽品种。但近2年田间调查发现,连续7年使用主栽品种——春晓大白菜出现早抽苔、抗病性差、发病率高的现象。为此,月湖区农林局引进4个春大白菜品种进行试验,以期筛选出最佳推广品种。 相似文献
5.
6.
经过组配、试验,选育出了秋播青麻叶直筒合叠抱新型大白菜品种津冠70,以北京三号大白菜品种作为对照,进行了品种比较试验。结果表明,大白菜新品种津冠70较对照农艺性状好,产量高,抗病性强,品质佳,具有很高的推广价值。 相似文献
7.
8.
9.
10.
11.
Adrenomedullin (AM) is a new peptidergic regulator of vascular function. AM serves as a hormone, which has many biological properties, plays an important role in the many pathophysiological processes, especially shock. This review will highlight the structure. bilogical properties of AM and the relationship between AM and shock. 相似文献
12.
乐都县引进大樱桃效益分析及栽培技术 总被引:5,自引:1,他引:4
从气候和区域地理优势角度,对大樱桃在乐都县的发展及栽培优势作出了简单介绍,对栽培大樱桃的效益作出了分析,指出大樱桃在乐都县具有较高的栽培前景,并对大樱桃的栽培技术作了一般性介绍. 相似文献
13.
14.
苹果原生质体研究进展——文献综述 总被引:10,自引:0,他引:10
综述了近二十年来苹果原生质体研究进展。概述了苹果原生质体分离培养技术及影响分离培养的条件。通过对有关文献的分析,提出了在选用不同的原生质体起始分离材料时应重点解决的问题及今后苹果原生质体研究的方向 相似文献
15.
葡萄中糖基化花色苷研究进展 总被引:2,自引:0,他引:2
葡萄果实与葡萄酒的颜色由其所含花色苷的种类和含量决定,而花色苷是由花色素经过糖基化修饰转变而成,所以糖基化修饰在葡萄果实花色苷合成途径中起着重要作用。葡萄果实中的糖基化花色苷主要包括花色素的3–O–葡萄糖基和3,5–O–双葡萄糖基,即花色素单糖苷和花色素双糖苷,糖基化花色苷的组成是决定红葡萄酒品质的关键因素之一。对糖基化花色苷在葡萄果实中的组成及其对葡萄酒颜色和稳定性的影响进行了简要介绍,重点对花色素单糖苷和花色素双糖苷合成的关键酶基因以及转录因子进行了综述,以期为葡萄果实糖基化花色苷合成的调控机理的全面揭示和优质红色酿酒葡萄品种的选育提供信息。 相似文献
16.
随着人们安全健康意识的提高,食品中农药残留问题更加受到重视。为此,对样品预处理研究进展及农药残留快速检测技术研究进展进行综述,并简单介绍各种方法的优缺点。 相似文献
17.
18.
Salt stress has been applied to improve the quality of tomato, but detailed information about the changes in antioxidant systems in salt-stressed fruit is not available. In this study, we examined the effect of salt stress on oxidative parameters, antioxidant content and antioxidant enzymes in two tomato cultivars during two cropping seasons. Salt stress was applied by adding 100 mM NaCl to the nutrient solution. We show that tomato fruits have antioxidant systems to protect themselves from salt-induced oxidative stress. This finding is supported by the lipid peroxidation and hydrogen peroxide levels, which remained unchanged under salt stress conditions. However, these antioxidant systems depend on cultivars and cropping seasons. In the summer crop, the antioxidant systems in salt-stressed ‘House Momotaro’ can be attributed to the enzymatic reactions of ascorbate peroxidase (EC 1.11.1.11) and glutathione reductase (EC 1.6.4.2), while those in salt-stressed ‘Mini Carol’ can be attributed to their non-enzymatic reactions of ascorbate and glutathione. In the winter crop, the antioxidant systems were not influenced by salt stress in either cultivar. However, the proline content increased in both cropping seasons and cultivars. The seasonal and cultivar differences of salt-induced changes in the antioxidant systems may result from cultivar differences in antioxidant capacities and the interaction between salt stress and growth conditions such as temperature and solar radiation. 相似文献
19.