稗

词组短语

barnyard grass · barnyard millet · panic grass

与稗相关的网络例句 [注：此内容来源于网络，仅供参考]

Echinochloa crusgalli is one of main chemical control weeds in paddy fields. It is one of the key factors of rice stability yield to control effectively barnyard grass.

稗草是直播稻田及水稻轻型栽培的主要杂草，控制好稻田稗草是直播田稳产的关键因子之一。

Result The degradation speeds of poison-to-death barnyard grass, dichlorvos and methyl parathion in CW were rapid, and they degraded over 50% in 24 h and about 90% in 72 h. The degradation speeds of poison-to-death barnyard grass, dichlorvos and methyl parathion in LC and DW were more rapid than that of others, but slower than that of them in CW. In DW, except the degradation rate of poison-to-death barnyard grass was over 50% in 72 h, the degradation speeds of other pesticides were all slow, the fenvalerate nearly was not degraded.

结果］CW条件下毒死稗、敌敌畏、甲基对硫磷降解速度较快，24 h降解50%以上，72 h降解90%左右；LC和DW条件下毒死稗、敌敌畏、甲基对硫磷的降解速度较其他几种农药快，但较在CW条件下降解慢；DW条件下除毒死稗72 h降解率超过50%外，其他几种农药降解较慢，氰戊菊酯几乎没有降解。

Quantitative structure-activity relationship studies showed that when the test grass was rape, their herbicidal activity was mainly related with substituent molar refractivity; when the test grass was barnyard grass, their herbicidal activity was mainly related with the electronic parameters of the substituents at the para-position of benzene ring.

定量的结构与活性关系研究表明，当作用对象为油菜时，化合物的活性可能主要与取代基R的摩尔分子折射常数有关；当作用对象为稗草时，化合物的活性可能主要与取代基R的电性参数有关。1-位为氢时，有利于对油菜生长的抑制；1-位为甲基时，有利于对稗草生长的抑制。

Education Min law is measured so that tea-oil tree water extracts content bud pre-treatment long, root grows careless to barnyard grass germination percent, bine and the IC50 of the chroma in restraining of bright quality is respectively 0.22, 0.36, 0.11 with 1.19 G/mL(bright quality, similarly hereinafter), cannikin law is measured so that long to the bine, root grows bud aftertreatment to be respectively with the IC50 of bright quality 0.17, 0.05 with 1.80 G/mL, show tea-oil tree water carries content to be had to barnyard grass grass weed active.

培养皿法测得油茶水提取物芽前处理对稗草种子发芽率、茎长、根长和鲜质量的抑制中浓度IC50分别为0.22、0.36、0.11和1.19 g/mL，小杯法测得芽后处理对茎长、根长和鲜质量的IC50分别为0.17、0.05和1.80 g/mL，表明油茶水提物对稗草具有除草活性。

Result In peanut seedling stage, spraying 900 ml/hm^2 quizalofop-P-ethyl EC on the grass weeds such as Barnyard grass, Green bristlegrass and Goosegrass had 100% control effect, but it had a poor control effect on some broad-leaved weeds. While, spraying 600 and 720 ml/hm^2 quizalofop-p-ethyllactuofen EC had remarkable effects not only on the grass weeds such as B. grass but also on the broad-leaved weeds such as Purslane, Cirsium setosum and Dayflower, with the control effect of more than 80%. Both of the 2 herbicides would not produce some slight contact drug spots on the part of peanut leaves and the drug spots on the leaves could be recovered in 1 to 2 weeks, which couldn't affect the growth and yield of the peanut in middle and late stage. So the 2 herbicides had good selectivity.

结果］在花生苗期喷施900 ml/hm^2精喹禾灵乳油对稗草、狗尾草、牛筋草等禾本科杂草具有100%的防效，但对一些阔叶杂草防效较差，而喷施600和720 ml/hm^2精喹乳氟禾乳油则除了对稗草等禾本科杂草有特效外，还对马齿苋、刺儿菜、鸭跖草等阔叶杂草具有显著的防效，均达80%以上。2种除草剂均对花生叶片局部产生一些轻度的接触性药斑，药斑在12周内可恢复，不影响花生的中后期生长及产量，具有很强的选择性。

Beauv effectively, and bensulfuron methyl (30g/hm^2) applied 6 d after rice transplanting could significantly reduce the plant numbers and biomass accumulation of difformed galingale (Cyperus difformis L.) and procumbent falsepimperne . The control efficiency of Huakangcao 78 and Yangdao 6 were 89.16% and 81.86% on barnyardgrass dry weight respectively 50 d after the rice transplanting, 83.56% and 84.93% on difformed galingale dry weight, 95.22% and 88.04% on procumbent falsepimperne dry weight. As a whole, the total dry weight control efficiency were 87.68% and 82.69% on above weeds correspondingly. Moreover, the grain yield of Huakangcao 78 and Yangdao 6 under the condition of 10cm depth water and herbicide application increased 40.33% and 21.36% comparing those under the treatment of 5cm depth water and no herbicide application respectively.

结果表明，水稻化感作用结合深水层可有效抑制稗草的萌发和生长，同时水稻移栽后6d使用苄嘧磺隆(30g/hm^2)单剂处理，明显地抑制了异型莎草和陌上菜的萌发数量和生物量积累；水稻移栽后50d，华抗草78和扬稻6号对稗草的干重防效分别为89.16%和81.86%，对异型莎草的干重防效分别为83.56%和84.93%，对陌上菜干重防效分别为95.22%和88.04%，对这3种杂草的总干重防效分别为87.68%和82.69%；10cm深水层及施用苄嘧磺隆单剂条件下2个水稻品种的产量比5cm水层、不施化学除草剂的处理分别增产40.33%和21.36%。

Establishment of plant regeneration system in matured Liriodendron hybrids;2. An efficient system of tissue culture and plant regeneration is essential for genetic transformation.

本文以黑籽雀稗成熟种子作为外植体，建立了黑籽雀稗组织培养和植株再生体系，并对其体系形成过程中的诸多影响因素进行了研究。

When single herbicide was used in the field for two years, the dominant species took place corresponding alternation. The community structure that originally mostly consisted of dicotyledonous weeds , such as Alopecurus aequalis sobol., etc.

通过连续几年的单一除草剂使用，烟田杂草的优势种群发生了相应变化，原来以看麦娘、马唐、稗草等单子叶杂草为主的群落结构演变成了现在以稗草、马唐及胜红蓟、两栖蓼、茴茴蒜为主的单、双子叶杂草混生结构，说明烟田施用除草剂会引起杂草群落结构变化，因此，在生产上则应注意除草剂的轮换使用。

In the 2-year field experiments, host plant preference and dispersal of the rice water weevil adults of the 1st generation emerged from the 1st cropping season rice were measured on newly transplanted plants of different species and/or growth stage. The weevil preferred significantly to barnyardgrass over Leersia herxandr and Cyperus difformis L with rice at the least, while the age of the plant did not affect such preference. But mean size of feeding scar in on younger plants were larger than in older plants.

在田间自由选择条件下，一代稻水象甲成虫对稗草的选择性显著高于对水稻的选择；稻水象甲对不同生育期的稗草、水稻的选择没有显著影响；对李氏禾和莎草的选择高于水稻，低于稗草；较幼嫩的植物上的取食斑总长度、取食斑平均长度比较老的植物的要长。

Control of QR barnyardgrass was also studied in this paper. Butachlor, cyhalofop-butyl, oxyfluorfen, pretilachlor, mefenacet and oxyfluorfen plus quinclorac gave adequate control of QR barnyardgrass, however, butachlor in combination with quinclorac and quinclorac plus piperonyl butoxide or agrco were not effective for control of QS barnyardgrass.

本论文还对QR稗草的治理进行了研究，结果表明：丁草胺、千金、果尔、扫茀特、苯噻草胺单剂及果尔和二氯喹啉酸混用能有效的防治二氯喹啉酸抗性稗草，而丁草胺和二氯喹啉酸混用、二氯喹啉酸和增效醚及二氯喹啉酸和表面活性剂蜡混用不能有效的防治QR稗草。

与稗相关的网络解释 [注：此内容来源于网络，仅供参考]

Azotobacter paspali：雀稗固氮菌

根际微生物在同一植物的不同品种可表现出其特异性,如雀稗根际内的雀稗固氮菌(Azotobacter paspali)只在雀稗品种的根际内受到刺激,而在另一品种的根际内则发育不好.

barnyard grass：稗

barnyard 牲畜运动场 | barnyard grass 稗 | barograph 气压器

barnyard grass：稗草

香草:Sweat grass | 稗草:Barnyard-grass | 林草:Forest-grass

Paspalum：(九十三)雀稗属

(九十二)求米草属 Oplismenus | (九十三)雀稗属 Paspalum | 141雀稗Paspalum thunbergii Kunth ex Steud.

Paspalum L：雀稗属

水生黍 P.paludosum Roxb. | 雀稗属 Paspalum L. | 双穗雀稗 P.distichum L.

ragi;Eleusine Corocana Gaertn;raggee;raggi;raggy;korakan;finger millet;African millet：穇子(图考;救荒);龙山稷;鸭脚稗;四国稗(日本)

丝瓜 rag gourd;Sponge gourd;Luffa cylindr... | 穇子(图考;救荒);龙山稷;鸭脚稗;四国稗(日本) ragi;Eleusine Corocana Gaertn;raggee;raggi;raggy;korakan;finger millet;African millet | 猪草 ragweed;ragwort; A...

Echinochloa：稗属

早熟禾科(Poaceae, 即禾本科(Garmineae))稗属(Echinochloa)植物. 一年生籽粒粗劣的禾草. 分布北美许多地区,是潮湿耕地的杂草,也生长于荒地. 稗属计20种,E. muricata俗名亦称为稗,但有人认为与E. crus-galli是同一个种.

Echinochloa crus-galli：稗 (草本, 原生, 普遍)

94. Echinochloa colonum 芒稷 (草本, 原生, 普遍) | 95. Echinochloa crus-galli 稗 (草本, 原生, 普遍) | 96. Echinochloa crus-galli praticola 細葉旱稗 (草本, 原生, 中等)

Echinochloa frumentacea：{食用稗}

Echinocereus rigidissinus {红太阳缀化}{红太阳} | Echinochloa frumentacea {食用稗} | Echinochloa oryzicola {空心稗}

Paspalum fimbriatum Kunth：裂穎雀稗

4. Paspalum distichum L. 雙穗雀稗 | 5. Paspalum fimbriatum Kunth 裂穎雀稗 | 6. Paspalum longifolium Roxb. 長葉雀稗