A method and application thereof for simultaneously improving the oil content and lodging resistance of Brassica napus seeds

A technology of Brassica napus and rapeseed, applied in application, fertilization methods, botanical equipment and methods, etc., can solve problems such as low oil yield, decline in grain yield and quality, and difficulties in mechanical harvesting operations, so as to enhance enthusiasm , Conducive to mechanized production, improving economic benefits and the effect of mechanized harvesting efficiency

Active Publication Date: 2017-11-28
HUAZHONG AGRI UNIV
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0006] The present invention mainly aims at problems such as the reduction of grain oil content and severe lodging of Brassica napus when nitrogen fertilizer is applied too much, which further leads to the decline of grain yield and quality, low oil yield and difficulty in mechanical harvesting operations, and provides a simultaneous use of liquid silicon fertilizer. Method and application of improving oil content and lodging resistance of Brassica napus seeds

Method used

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  • A method and application thereof for simultaneously improving the oil content and lodging resistance of Brassica napus seeds
  • A method and application thereof for simultaneously improving the oil content and lodging resistance of Brassica napus seeds
  • A method and application thereof for simultaneously improving the oil content and lodging resistance of Brassica napus seeds

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] From 2013 to 2014, a split-plot test of spraying liquid silicon fertilizer on two cabbage rape varieties was carried out in the Huazhong Agricultural University experimental field in Wuhan, Hubei Province, China. The specific test steps are as follows:

[0019] 1) Selection and planting of rapeseed varieties: the previous crop was rice, the plot was 10m long and 2m wide, and 6 rows were sown at equal spacing. Two cabbage-type rapeseeds with obvious differences in growth period, grain quality, yield and lodging resistance were selected. The hybrids Huayouza 62 and Fengyou 520 were used as test materials and were broadcast live on September 22;

[0020] 2) Rapeseed field management: fixed seedling density 45×10 4 strain hm -2 , the amount of pure nitrogen is 360kg·hm -2 , with urea as the nitrogen source, the ratio of base fertilizer: seedling fertilizer: sedge fertilizer is 5:2:3. Phosphate fertilizer (P 2 O 5 ) and potash (K 2 O) The dosage is 150kg·hm -2 , respe...

Embodiment 2

[0036] From 2014 to 2015, the split-plot test of Brassica napus spraying liquid silicon fertilizer was carried out in the experimental field of Huazhong Agricultural University, Wuhan City, Hubei Province, China. The management measures, the spraying treatment of silicon fertilizer and the measuring method of each index are all carried out according to the steps of Example 1.

[0037] The measurement results are shown in Table 2. The test results showed that with the delay of the spraying period, the oil content of the grains increased, the yield increased, and the field lodging angle decreased. With the increase of monosilicic acid concentration, in the T1 (seedling stage) period, the oil content of the grains of the two varieties decreased, but both were greater than those of the control without spraying, the yield increased, and the field lodging angle decreased; With the increase of silicic acid concentration, Huayouza 62 in P2 (0.093g·L -1 ) concentration reached the ma...

Embodiment 3

[0042] From 2014 to 2015, the experiment of paclobutrazol spraying treatment of 2 cabbage rape varieties was carried out in the experimental field of Huazhong Agricultural University, Wuhan City, Hubei Province, China. The seeds were sown on September 26, 2014. The specific test steps are as follows:

[0043] 1) rape variety selection and planting: variety selection and planting are the same as in Example 1;

[0044] 2) field management of rapeseed: the field management after each variety is planted is the same as in Example 1;

[0045] 3) Chemical reagent preparation: the concentration of monosilicic acid is P1 (0.086g·L) -1 ), P2 (0.093g·L -1 ) and P3 (0.101g·L -1 ) silicon fertilizer aqueous solution with monosilicic acid content (the solution dosage in each plot is 15000L·hm -2 ) evenly mixed for use;

[0046] 4) Spraying period: In the early stage of budding of rapeseed varieties, the concentration of monosilicic acid was sprayed at P1 (0.086g·L). -1 ), P2 (0.093g·L ...

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Abstract

The invention belongs to the technical field of rape cultivation, and particularly relates to a method for increasing the oil content of Brassica napus rapeseeds and improving lodging resistance simultaneously and application of the method. According to the method, in the early stage of the stem elongation period of Brassica napus rapes, the bolting height is 8-12 cm, a liquid silicon fertilizer aqueous solution with the monosilicic acid content being 0.086-0.101g.L<-1> is used between December 20th to January 20th next year in Gregorian calendar time, and the oil content of the Brassica napus rapeseeds is increased and lodging resistance is improved simultaneously. The method is applicable to Brassica napus rape varieties in rape production areas in the Yangtze river basin. By means of the method, the oil content is increased and lodging resistance is improved simultaneously under the condition that the yield of the Brassica napus rapes is higher through high-nitrogen culture, so that quality of the rapes is improved easily, application and popularization of the mechanical harvesting technology are facilitated, and economic benefits of rape production are improved.

Description

technical field [0001] The invention belongs to the technical field of rape cultivation, and in particular relates to a method for simultaneously improving the oil content and lodging resistance of rapeseed rape seeds and its application. Background technique [0002] Rapeseed oil is one of the main oil crops in my country. The content of saturated fatty acids, cholesterol and other unfavorable components in rapeseed oil is low, and it contains unique natural antioxidant components, namely rapeseed polyphenols. Long-term consumption can reduce cholesterol and prevent aging. . [0003] Increasing nitrogen fertilizer application can significantly increase yield, but at present, due to the pure pursuit of yield, farmers often apply excessive nitrogen fertilizer, which reduces the oil content of rapeseed and affects the oil yield. At the same time, excessive application of nitrogen fertilizer will make the plants grow leggy, the ventilation and light transmittance of the colony ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G1/00A01C21/00
CPCA01C21/005
Inventor 孙盈盈蒯婕周广生
Owner HUAZHONG AGRI UNIV
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