2) Rice varieties
水稻品种
1.
Resistance to small brown planthopper and its mechanism in rice varieties;
水稻品种对灰飞虱的抗性及其机制
2.
Changes in levels of nitrogen, phosphorus and potassium in roots and shoots of different rice varieties under infestation by Nilaparvata lugens (Stl) (Homoptera: Delphacidae);
褐飞虱侵害后不同水稻品种根及地上部氮、磷、钾含量的变化
3.
Influence of rice varieties on the metabolizing enzymes of Nilaparvata lugens Stl;
水稻品种对褐飞虱代谢酶的影响
3) Rice variety
水稻品种
1.
Effect of rice variety and fertilization timing on egg parasitism of Sogatella furcifera in the single-cropping season rice field;
水稻品种和施肥时间对单季稻田中白背飞虱卵被寄生率的影响
2.
To compare photosynthetic performances within rice canopies of different rice varieties,intersubspeicific hybrid Peiai64S/E32,Peiai64S/9311,X07S/Zihui100,three-line hybrid Gangyou881,inter-varietal hybrid Shanyou 63 and japonica rice variety 9516 were used as materials.
以亚种间两系组合培矮 6 4S/E32、培矮 6 4S/ 9311、X0 7S/紫徽 10 0及三系杂交组合冈优 881、汕优 6 3和中粳 95 16为材料 ,研究水稻不同生育期单株的叶面积和 2 2 5m2 小区的叶面积系数、不同叶层的光合速率和叶绿素含量、叶绿素荧光特性 (叶绿体PSⅡ的原初光化学效率Fv/Fm、光化学猝灭参数 qP和非光化学猝灭参数qN)等的变化 ,分析上述水稻品种的群体冠层结构 ,截光特点以及不同叶层的光合生理特性。
3.
The results showed that after rice plants were infested by WBPH, photosynthesis rate and chlorophyll contents in leaves of susceptible rice varieties (TN1 and Shanyou 63) declined obviously compared to those of resistant rice variety (N22); activity of superoxide dismutase (SOD) increased and of catalase(CAT) and peroxidase (POD) decreased in susceptible rice varieties, but activity.
以对白背飞虱具有不同抗性水平的水稻品种 (组合 )为材料 ,研究了水稻在白背飞虱为害后稻株体内的生理变化。
4) Rice cultivar
水稻品种
1.
Pathotype diversity of Magnaporthe grisea and resistance of rice cultivars to the pathogen in Jiangsu Province;
江苏省稻瘟病菌的毒性多样性及水稻品种的抗病性
2.
Interrelationship between race evolution of Magnaporthe grisea and rice cultivars in Jiangsu Province;
江苏省稻瘟病菌生理小种的演变及与水稻品种的相互关系
3.
Different biological characters of rice lead to differences in methane emission of rice cultivars from rice paddy field.
通过对不同水稻品种甲烷排放量与水稻通气组织相关性分析,确定聚类指标,运用离差平方和聚类分析方法对水稻品种进行聚类,初步探讨了水稻植物学特性与甲烷排放的相关性。
5) rice cultivars
水稻品种
1.
The paper summarized the supply of phosphate resources in soil at home and abroad;also the progress on following aspects: Low-phosphorus stress tolerent characteristics of rice cultivars;Screening and identification low-phosphorus stress tolerence of rice cultivars;Effect of phosphor.
在此,简述了世界和我国土壤磷资源供给概况,水稻品种耐低磷胁迫特性研究进展,耐低磷胁迫水稻品种(系)的筛选与鉴定研究进展,低磷胁迫对水稻品种根系的影响研究进展。
2.
According to the relevancy and sequencing on the resistance of different rice cultivars,the result showed that the drought resistance of Yangdao6 was stranger than that of other cultivars,and Xieyou63 s followed,but the drought resistance of Xiguang and Anxuan5 was weaker relatively.
运用灰色关联分析等方法对水稻品种的若干个抗旱性指标进行综合分析,根据关联度的大小对品种的抗旱性进行排序,初步认为品种扬稻6号的抗旱性最强,汕优63次之,而品种西光和安选5号的抗旱性较弱。
3.
In order to utilize the resource of the rice in Heilongjiang province resisting against the rice blast, used inference of disease spots reactive, we classified some japonica rice cultivars of Heilongjiang province according to the resistance to the blast using 7 stable pathogenicity Japanese strains.
结果表明:141份水稻品种划分为39个品种群,初步推断了60个品种的抗性基因型,分别为新2号型、K59型、爱知旭型、Pi4号型、草笛型、砦1号型,明确了黑龙江省新推广品种基因型,满足育种者对抗源的需求,也为开展抗病基因分析奠定了物质基础。
6) bacterial leaf blight(rice plants)
水稻-品种
补充资料：桑品种鉴定(appraisal of mulberry varieties)
| 桑品种鉴定(appraisal of mulberry varieties) 1.生长的鉴定 每一品种都具有一定的物候期，在育种过程中应按时观察调查，作主评审依据。 ①发芽期：选择枝条中上部的正常芽，调查其膨芽、脱苞、鹊口及开叶日期。 ②桑叶成熟期：在春期及夏秋期，分别调查从开叶到最大叶面积(成熟叶)所需天数。 ③桑叶硬化期：以枝条中部桑叶为准，调查桑叶的硬化早迟。 ④停止生长期：枝S支条顶部停止生长时期。落叶期，叶片脱落50%以上的时期。 2.产叶量鉴定 春叶产量在春桑5龄盛食期进行。主要调查总芽叶重，新梢梗重，1kg叶片数等，然后算出条、梢、叶比例，1m长产叶量及亩产叶量等。 3.叶质鉴定：分春叶及秋叶两次进行。鉴定方法以生物鉴定(即用鉴定品种的桑叶饲蚕)为基准，通过蚕的生长发育结果来评定叶质的优劣。 4.抗逆性鉴定：①抗旱性一般在夏秋干旱季节调查。②抗寒性在冬季落叶至春季发芽前调查。③抗病性的鉴定，一般在田间自然条件下，按照各种病害的发生时期进行直接观察调查，也可用人为诱发(病原接种)进行鉴定。 |
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条