Reducing 2,4-D density is beneficial to callus reproduction.
降低2，4-D浓度有利于愈伤组织的增殖。
The experimental results show that when adopting MS basal medium, adding 2,4-D benefit to induce callus;
实验结果表明：以MS为基本培养基，在愈伤诱导培养基中加入2，4-D利于愈伤组织的诱导；
The results showed that: there was synergism to combination between 2,4-D butyl and fomesafen, fluazifop-p-butyl;
结果表明：2，4—D丁酯与氟磺胺草醚、精稳杀得混用具有提高除草效果的作用；
Bentazone and 2,4-D herbicides in drinking water and source water were determined by gas chromatography with ECD detector.
采用气相色谱ECD检测器同时分离检测水中灭草松和2，4-滴两种农药。
Synchronized embryogenic cultures at different developmental stages were obtained by controlling 2,4-D concentration and developmental time.
通过对2，4-D浓度及生长发育时间的控制获得了高度同步化的各发育阶段体胚材料。
The results showed that genetic trait of rice and quantity of 2,4-D were the key elements to callus induction from mature rice seeds and suspension culture of rice cells.
结果表明：水稻品种的遗传特性、2，4-D浓度是诱导水稻愈伤组织、水稻悬浮细胞系培养的关键因素。
The results showed that there were no difference in callus induction between two kinds of explant. High concentration of 2,4-D was effective on the mature embryos' induction.
结果表明，幼胚和成熟胚的愈伤组织诱导率无明显差异，但较高浓度的2，4-D有利于成熟胚的诱导，而幼胚培养时2，4-D浓度的影响效果因品种而异；
The exogenous auxin and cytokinin are necessary to induced differentiation and proliferation of cells of culture in vitro. 2,4-D is an important hormone of induced embryogenic calluses.
外源生长素和细胞分裂素是诱导离体培养细胞分化与增殖所必需的，2，4-D是诱导胚性愈伤组织的重要激素。
The drift of droplets in spraying diluted 2,4-D butyl ester emulsion by Yun-5 aircraft mounted the GP-81 nozzle has been studied, and a mathematical model has also been set up in this paper.
通过田间试验研究，探索了装配GP—81喷头的运五型飞机喷洒2，4—D丁酯乳油稀释液的雾滴漂移状况，建立了有关数学模型。
With young stem segment of Euonymus japonicus as explants, callus induction were studied on MS basal medium supplemented with different hormone combinations including BA and NAA, IBA , 2,4-D.
以大叶黄杨的幼茎段为外植体，在添加BA和NAA、IBA、2，4-D不同激素组合的MS培养基上培养，对其愈伤组织进行诱导试验。
With young stem segment of Euonymus japonicus as explants, callus induction were studied on MS basal medium supplemented with different hormone combinations including BA and NAA, IBA , 2,4-D.
以大叶黄杨的幼茎段为外植体，在添加BA和NAA、IBA、2，4-D不同激素组合的MS培养基上培养，对其愈伤组织进行诱导试验。
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