Compound chemical hybridizing agent composite and application thereof

Abstract

The invention relates to a compound chemical hybridizing agent composite and application thereof. The composite contains compound tribenuron-methyl, thifensulfuron methyl, a boricfertilizer, a dispersing agent, soluble starch and the like. The composite can induce the male sterility and female fertility of crucifer. In comparison with a single agent, the compound chemical hybridizing agent has a good and thorough male sterility effect, a male sterility rate of over 95 percent and a female fertility rate of 100 percent. The compound chemical hybridizing agent has bioactivity which is 100 to 1,000 times as high as that of the traditional hybridizing agent, the used amount is 0.15 to 0.3g/hm<2>, and the compound chemical hybridizing agent has the advantages of superhigh efficiency, super-low used amount, low toxicity, low residue and low cost.

Description

technical field [0001] The invention relates to a compound chemical hybridization agent composition, its using method, and its application in rapeseed. Background technique [0002] The main ways for successful utilization of rapeseed heterosis in my country and for large-scale demonstration and application include cytoplasmic male sterility (CMS), nuclear male sterility (GMS) and chemical hybridization agent-induced male sterility. The use of chemical hybridization agents to induce male sterility in crops is one of the important ways to utilize crop heterosis. [0003] Cytoplasmic male sterility is the most extensive and effective way to utilize heterosis in rapeseed. At present, the most practical rapeseed sterile lines in the world are Polyma male sterile line and Shaanxi 2A male sterile line. Using Polyma male sterile line A series of rapeseed hybrids have been successfully selected and bred by the male sterile line and the Shaanxi 2A male sterile line, but the fertilit...

AI Technical Summary

Problems solved by technology

The above reports and patents CN 100345484C and CN 1251597C reported in recent years are all single hybridization agents, and the compound chemical hybridization agent of tribenuron-m

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