CN105009737A - Method for soaking corn seeds with low-concentration IBA (indolebutyric acid) at variable temperature - Google Patents

Abstract

The invention discloses a method for soaking corn seeds with low-concentration IBA (indolebutyric acid) at the variable temperature and belongs to the field of conventional breeding of plants. Firstly, a low-concentration IBA working solution with the concentration being 10 ppm is prepared; corn seeds are put in a seed bag and sterilized for 10 minutes at the temperature of 50 DEG C; the seeds are soaked in the IBA working solution in the ratio of the mass of the seeds to the volume of the low-concentration IBA working solution being 1:5; the seeds are subjected to slow variable temperature treatment at the temperature ranging from 20 DEG C to 30 DEG C for 1 day; the treated corn seeds are put in a sprouting box with sand for sprouting for 10 days at the constant temperature of 25 DEG C, and the seeds are put under light for 12 hours and in dark for 12 hours every day.

Description

A kind of low concentration IBA is in conjunction with the method for alternating temperature soaking corn seed

Technical field

Low concentration IBA, in conjunction with a method for alternating temperature soaking corn seed, belongs to plant conventional breeding field.

Background technology

Corn is a kind of important grain, economy and forage crop, and purposes is wide, and demand is large, occupies an important position in national economy.Therefore, improve corn yield for guarantee national food security, promotion livestock breeding and rural economic development, increase peasant economy income and there is important effect.At present, domestic corn planting adopts the mode of drilling and bunch planting, and is directly main mainly with seed down, the defect of the method is seed sprouting, neat seedling Time Inconsistency, and is short of seedling phenomenon seriously, the huge trouble to Maize Production band.Therefore, improve full stand rate, full stand rate and strong sprout rate be the basis ensureing that corn yield increasing increases income.

Summary of the invention

Low concentration IBA, in conjunction with a method for alternating temperature soaking corn seed, is characterized in that, include the preparation of low concentration IBA working solution, sterilization, seed immersion, slowly intermittent warming, sprouting in described method, concrete operation step is as follows:

1. low concentration IBA working solution preparation: precise weight be 0.1g IBA with a little 95% ethanol dissolve after, be settled to 10L with running water, be the IBA working solution of 10ppm;

2. sterilize: warm water seed being placed in 50 DEG C is sterilized 10min;

3. seed soaks: according to seed quality: the ratio of low concentration IBA working solution volume=1:5, is soaked in the IBA working solution of 10ppm by seed;

slow intermittent warming: according to 25 DEG C/2.5h, 30 DEG C/7h, 25 DEG C/2.5h, 20 DEG C/12h carries out intermittent warming 24h;

sprout: the seed after alternating temperature is placed in the sterilized germination box containing river sand and sprouts, sprouting condition is constant temperature 25 DEG C of 10d (12h light, 12h are dark).

The invention has the advantages that from the viewpoint of full stand, Qi Miao, strong sprout etc., with the hormone of low concentration (as IBA, IBA, GA etc.), rare earth element (lanthanum, cerium etc.), trace element (boron fertilizer, zinc fertilizer etc.) etc. for soaking working solution, immersion treatment is carried out to corn seed.The object promoting seed simultaneously stability hormone, trace element, rare earth element and moisture can be reached by the method, realize improving full stand rate, full stand rate and strong sprout rate beneficial effect.

embodiment:

Below in conjunction with specific embodiment, the present invention is conducted further description.

Embodiment

Low concentration IBA, in conjunction with a method for alternating temperature soaking corn seed, is characterized in that, include the preparation of low concentration IBA working solution, sterilization, seed immersion, slowly intermittent warming, sprouting in described method, concrete operation step is as follows:

1. low concentration IBA working solution preparation: precise weight be 0.1g IBA with a little 95% ethanol dissolve after, be settled to 10L with running water, be the IBA working solution of 10ppm;

2. sterilize: warm water Zheng Dan 958 seed being placed in 50 DEG C is sterilized 10min;

3. seed soaks: according to seed quality: the ratio of low concentration IBA working solution volume=1:5, is soaked in the IBA working solution of 10ppm by seed;

slow intermittent warming: according to 25 DEG C/2.5h, 30 DEG C/7h, 25 DEG C/2.5h, 20 DEG C/12h carries out intermittent warming 24h;

sprout: the seed after alternating temperature is placed in the sterilized germination box containing river sand and sprouts, sprouting condition is constant temperature 25 DEG C of 10d (12h light, 12h are dark).Compare with the seed of intermittent warming with without element, full stand rate and full stand rate all improve more than 4.7%.

Claims (1)

1. low concentration IBA is in conjunction with a method for alternating temperature soaking corn seed, it is characterized in that, include the preparation of low concentration IBA working solution, sterilization, seed immersion, slowly intermittent warming, sprouting in described method, concrete operation step is as follows:

1. low concentration IBA working solution preparation: precise weight be 0.1g IBA with a little 95% ethanol dissolve after, be settled to 10L with running water, be the IBA working solution of 10ppm;

2. sterilize: warm water seed being placed in 50 DEG C is sterilized 10min;

3. seed soaks: according to seed quality: the ratio of low concentration IBA working solution volume=1:5, is soaked in the IBA working solution of 10ppm by seed;

slow intermittent warming: according to 25 DEG C/2.5h, 30 DEG C/7h, 25 DEG C/2.5h, 20 DEG C/12h carries out intermittent warming 24h;

sprout: the seed after alternating temperature is placed in the sterilized germination box containing river sand and sprouts, sprouting condition is constant temperature 25 DEG C of 10d (12h light, 12h are dark).