共查询到20条相似文献，搜索用时 156 毫秒
1.
2.
3.
1材料与方法
参试品种：空育131、龙粳12、龙粳15、龙粳16、龙粳20、龙粳22、龙粳23、垦稻11、垦稻13、垦稻18,以空育131为对照,试验地点设在同江市三村镇头村和向阳乡勤俭村,土壤为白浆土,试验随机排列,3次重复,每个品种试验面积30m^2。 相似文献
4.
5.
水稻新品种龙粳34是以高产、优质的垦稻8号为母本,抗病、耐冷、优质、早熟的龙粳13为父本有性杂交,经系谱法选育而成。该品种具有产量高、米质优、抗稻瘟病、耐冷性强、抗倒伏等优良特性。 相似文献
6.
<正>龙粳31号是黑龙江省农业科学院佳木斯水稻研究所以龙花96-1513为母本、垦稻8号为父本,接种其F1花药离体培养,后经系谱方法选育而成;龙粳39号是以龙花96-1484母本、龙粳8号为父本,系谱方法选育而成。龙粳31号、龙粳39号是黑龙江省第三积温带栽培面积比较大的优质粳稻品种,二者特征特性既有共性又有区别,混合种植能够实现两品种优势互补,存优剔劣,使群体结构更为合理化,不失为一种水稻高 相似文献
7.
8.
在黑龙江省黑河市黑龙江省农业科学院黑河分院、红色边疆农场、龙镇农场共3个地点进行了14个水稻品种筛选试验,通过熟期和产量等的比较,鉴定出黑糯2号、黑粳1808、龙稻301、黑粳13、绥粳329、中科651、垦稻1927、龙粳1951和龙盾3952共9个品种,这些品种熟期早,能安全成熟,产量显著高于对照黑粳10号,适合黑河地区推广种植。 相似文献
9.
经过对42个黑龙江水稻主栽品种（系）耐冷性分析,结果表明：在冷水胁迫条件下,株高、穗长等16个农艺性状绝对差值F值均达到显著或极显著水平,变异系数在3．4～32．3;绝大部分性状测定值呈显著或极显著相关;按抗冷性定级标准计算,供试材料中耐冷性强的有：空育131、绥粳5号、绥粳7号、龙粳17号、上育397、垦稻10号、莎莎妮、垦粳2号。 相似文献
10.
11.
优质小麦优质高产高效的技术措施 总被引：3，自引：0，他引：3
近几年来,随着小麦品种的技术更新和换代,我国小麦生产连年丰收,库存大量积压,价格大幅下跌.与之形成鲜明对比的是专用优质小麦的需求量越来越大,国产优质小麦远远供不应求.目前我国每年约需专用优质小麦230亿kg,而国产优质小麦不足需求量的30%,大量优质小麦不得不用高额外汇进口.为此,国家和有关省市相继出台了小麦优质优价政策,一些地方优质小麦的市场价格比普通小麦高出4～5成,有的甚至高达1～2倍.不少农民靠种优质小麦开始走上致富路.优质小麦的种植技术应掌握好以下几个方面: 相似文献
12.
13.
14.
A kind of small scale wind tunnel with low velocity is proposed according to the characteristics of strong ionization discharge chamber and the demands of discharge for flux, velocity and flow fields. On the precondition that the airflow field and velocity is satisfied, aerodynamic design and structural design are carried out. Key techniques are studied including overall structure, aerodynamic and structural design of airflow vent and collection vent, aerodynamic and structural design of power section, flow rate adjustment and control, and cooling system of motor. Based on the design scheme, a small scale wind tunnel with strong ionization discharge for an enterprise is developed. Application indicates that the small scale wind tunnel is a practical and effective airflow loop device for high pressure and strong ionization discharge with the features of stability and reliability. 相似文献
15.
A new sunflower mutant, CAS-12, was obtained, which has both high palmitic (≈30%) and high oleic acid contents, and also a
substantial amount of palmitoleic acid (≈7%). The mutant was selected after X-ray irradiation of dry seeds of the inbred line
BSD-2-423, which had normal palmitic (≈3%) and high oleic (≈88%) acid levels. The increase of palmitic and palmitoleic acids
occurred at the expense of the oleic acid content, which decreased to around 55% in respect to the original line. Linoleic
acid content is always under 5%. Palmitic and palmitoleic acid levels were similar to those of the high palmitic mutant CAS-5
obtained in a previous programme from a low oleic line isogenic to BSD-2-423 using a similar mutagenic treatment. In that
previous programme we also selected three high stearic acid mutants using chemical mutagenic treatment on the same sunflower
line (RDF-1-532). We attempted to obtain mutants in other lines but were unsuccessful. The isolation of similar mutants in
isogenic parental lines illustrates the importance of the genetic background in the development of specific mutants with an
altered seed oil fatty acid composition. The oil of this mutant will increase the range of potential uses of sunflower oil.
This revised version was published online in July 2006 with corrections to the Cover Date. 相似文献
16.
17.
冬季高产优质马铃薯栽培技术 总被引：1，自引：0，他引：1
在云南省的低热漕坝区如蒙自、个旧、元江河谷、金沙江及其支流流域、南盘江流域、怒江及澜沧江河谷地带、富宁至西双版纳至德宏州沿线不太适宜在春、秋两季种植马铃薯,属于低地马铃薯不太适宜区.根据近两年来笔者对上述部分地区的调查和冬季马铃薯试验研究结果,认为这些地区具有冬季生产马铃薯的反季栽培优势. 相似文献
18.
台湾甜杨桃在漳州栽培已获得成功。一年中持续花芽分化,周年可以开花结果,适合在各种土壤中生长。果形大,单果重0.5kg左右,肉白、厚、籽少、脆软爽口,色味俱佳,营养丰富,富含多种人体所需的微量元 相似文献
19.
20.
登海9号系由山东省莱州市农科院用DH65232自交系为母本，8723自交系为父本杂交育成的紧凑型玉米单交种，2000年通过国家农作物品种审定委员会审定。该品种属中晚熟，适宜东北、河北、内蒙东南部等春玉米区和黄淮海夏玉米区种植。 相似文献