亚洲欧美精品aaaaaa片,成人国产一区二区三区精品,97成人无码免费一区二区中文,国产精品扒开腿做爽爽的视频

2,4-D Solution

2,4-D溶液 10mg/ml

● 產(chǎn)品包裝：

C₈H₈Cl₂O₃  MW: 221.04  CAS：94-75-7 

● Storage：-20℃

● Specifications:

Soluble…………10mg/ml in Ethanol

Appearance…….colorless clear solution

● Introduction：

Typical working concentration of 2,4-D is varied by application and plant species. It has been reported that soybean treated with 2,4-D at concentrations between 5.0 and 10 mg/L stimulated callus growth, while at a much lower concentration such as 0.5 mg/L stimulated new cell formation and cellular enlargement for tobacco callus tissue.² Other concentration such as 1-3 mg/L of 2,4-D has been reported to be effective in inducing callus formation of broad-leaf plants.¹ Additionally, 2,4-D is often used together with IAA and L-tryptophan for callus induction and suspension cultures of wheat, pearl millet and rice.²  2,4-D has also been used in seed testing for the detection of Phoma lingam on Brassica spp when incubated on a blotting paper that has been soaked with 0.2% 2,4-D solution.³

●    Reference:

1.  Witham, Francis H. 1968. Effect of 2,4-dichlorophenoxyacetic acid on the cytokinin requirement of soybean cotyledon and tobacco stem pith callus tissues. Plant Physiol. 43:1455-1457.

2.  George, E.F. 1993. Plant propagation by tissue culture. Part 1: The Technology, 2nd Ed. Exegetics Ltd. Edington, Wilts. BA13 4QG,England.

3.  The International Seed Testing Association (ISTA). International Rules for Seed Testing ed. 2012. Annexe to Chapter 7 Seed Health Testing: Seed Health Testing Methods.Bassersdorf,Switzerland.