Chemical regulation method to promote fertility recovery of bns maintainer line in thermosensitive genic male sterile wheat
A technology for chemical regulation and fertility recovery, applied in the fields of botanical equipment and methods, horticultural methods, horticulture, etc., can solve the problems of increasing seed setting rate, high cost, difficult to popularize and apply, etc. easy effect
Inactive Publication Date: 2016-08-31
HENAN NORMAL UNIV +1
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Problems solved by technology
In theory, normal autumn sowing cultivation can also be adopted, but after the stamens have developed to the stage of differentiation of the pistil primordium, they can be transferred to the greenhouse for cultivation, and plastic sheds are used to keep them warm until mature trinuclear pollen grains are formed, especially in the pistil primordia. From the basal differentiation period to the tetrad formation period, ensure that the minimum temperature is higher than 12°C, which is expensive in large-scale seed production and difficult to popularize and apply
Under the condition of late sowing in northern Henan, there is no report on the use of exogenous substances to restore the fertility of the BNS fertile maintainer line and increase its seed setting rate.
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Embodiment 1
[0013] The temperature-sensitive genic male sterile wheat BNS was used as the experimental material, and it was sown on December 2, 2013 to form a BNS late-sowing fertile maintainer line. The test site is the wheat experimental field of Henan Normal University. The soil is sandy loam. The soil in the 0-30cm soil layer contains 10.7g / kg of organic matter, 0.46g / kg of total nitrogen, 60.1mg / kg of alkaline nitrogen, 31.1mg / kg of available phosphorus, Available potassium 92.1mg / kg. The area of the plot is 1.5m×3m (4.5m 2 ), the row spacing is 24cm, and the plant spacing is 10cm (the plant spacing is determined by intensive sowing, and then the seedlings are settled after emergence). Arranged in random blocks and repeated 3 times. Apply dry chicken manure 1.7t / mu, Stanley (Sanan) compound fertilizer 50kg / mu, N-P 2 o 5 -K 2 O=18:18:18, total nutrient ≥54%, N-P 2 o 5 -K 2 The amount of O per mu is 9kg, and topdressing Stanley (San'an) compound fertilizer is 25kg / mu at the j...
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The invention discloses a chemical control method for facilitating BNS maintenance line fertility restoration. The chemical control method comprises the steps that starting from BNS late sowing fertility maintenance line stamen development to a stamen and pistil anlage differentiation phase till wheat ears just completely draw from flag leaf sheath, from the first day, whole-plant spraying treatment is conducted on BNS late sowing fertility maintenance line plants four times a day through hydrogen peroxide with a molar concentration of 200 Mumol / L, the spraying amount is 50-80 L / mu, and other management refers to a general field cultivation management pattern. According to the chemical control method for facilitating the BNS maintenance line fertility restoration, be means of the field cultivation and the treatment of the hydrogen peroxide with the molar concentration of 200 Mumol / L, the fructification percentage of the BNS late sowing fertility maintenance line is increased by 11.54% compared with that of natural growth and increased by 11.82% compared with that of spraying clear water. The chemical control method for facilitating the BNS maintenance line fertility restoration has the advantages of being relatively simple in operation, low in investment cost, time-saving and labor-saving, simple and convenient in method compared with an original method of regulating BNS maintenance line fertility restoration, and wide in application prospect.
Description
technical field [0001] The invention belongs to the technical field of BNS chemical regulation and control of thermosensitive genic sterile wheat, and in particular relates to a chemical regulation method for promoting the recovery of fertility of BNS maintainer line of thermosensitive genic sterile wheat. Background technique [0002] The utilization of wheat photothermo-sensitive male sterility (PTSMS) is a major advance in the research of hybrid wheat. The wheat light-temperature-sensitive sterile lines discovered in my country, such as ES, C49S, ZP, BS, YS and BNS, have become important test materials for hybrid wheat research. [0003] Thermo-sensitive genic male sterile wheat BNS was successfully bred by Ru Zhengang in 2002. BNS has the characteristics of complete sterility and complete fertility transformation, and the trend of fertility change is: complete abortion-semi-sterility-complete fertility. Low temperature is the main reason for affecting the fertility tra...
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IPC IPC(8): A01G7/06
CPCA01G7/06A01G22/00
Inventor 刘海英茹振刚王华华胡铁柱李淦
Owner HENAN NORMAL UNIV