Accurate identification method for oil content of rapeseed under specific field cultivation conditions

An identification method and technology for oil content, which can be used in measuring devices, food testing, and material analysis by optical means, etc., can solve the problems of large planting density, large differences in growth period, and insufficient water supply of rapeseed, so as to improve screening. , The effect of small environmental interference and simple operation

Active Publication Date: 2018-08-24
云南省农业科学院经济作物研究所
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are the following deficiencies: the planting density is high, it is difficult to ensure the light transmission and air permeability between plants; the water supply is insufficient, and the consistency of soil moisture and soil moisture during the synthesis of rapeseed oil cannot be guaranteed; the oil content is not analyzed according to the growth period. The difference is divided, the growth period of rapeseed varies greatly, and the oil content of rapeseed also varies greatly, which is an important influencing factor of oil content

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A method for accurately identifying the oil content of rapeseed under specific field planting conditions, the method is as follows:

[0017] 1) In the planting season, choose a field with suitable temperature, light intensity, no shading, and convenient irrigation for sowing and raising seedlings. In Southwest China, the most suitable sowing time is generally from late September to late October every year, and the optimal sowing time is October 5-15, which can not only ensure no freezing damage in the initial flowering stage of rapeseed, but also avoid high temperature forced seedlings during the filling period. cooked;

[0018] 2) Deep ditch of 0.35-0.45m, soil moisture width of 2-3m, sparse planting, seedling row spacing of 0.5-0.7m, plant spacing of 0.4-0.6m, minimize mutual shading among rapeseed plants; keep water in the ditch after initial flowering of rapeseed 0.05-0.15m deep to ensure the consistency of soil moisture in and within the soil moisture during the r...

Embodiment 2

[0021] A method for accurately identifying the oil content of rapeseed under specific field planting conditions, the steps are as follows:

[0022] 1) For the high oil content material P3, medium oil content material P48, low oil content material P65 and their hybrid F 1 Generations were sown separately, and the sowing date was October 15;

[0023] 2) Deep ditch 0.35m, soil moisture width 2m, row spacing 0.7m, plant spacing 0.5m, sparse planting hole sowing, 5-6 seeds per hole, and 2 seedlings when setting seedlings; after sowing, irrigate according to soil moisture; After the initial flowering of rapeseed, keep the water holding depth of 0.1m in the ditch until harvest, and other planting management is the same as conventional planting.

[0024] 3) For strain materials with different growth stages, especially different initial flowering stages, list them at the initial flowering stage, mark the initial flowering time, and regard the difference of 2-3 days in the initial flow...

Embodiment 3

[0040] The oil content of three rapeseed varieties with different growth periods: Yunyouza No. 15 (early maturity), Yunyouza No. 10 (medium maturity) and Yunyouza No. 12 (late maturity) were compared, and the adjustment was made by simultaneous sowing and staggered sowing The seeds were harvested at the initial flowering stage, and 30 individual plants were taken from each material to measure the oil content, with three repetitions.

[0041]According to the method of the present invention, rapeseed varieties Yunyouza No. 15, Yunyouza No. 10 and Yunyouza No. 12 are planted. One treatment was sowing at the same time, sowing on October 15; the other treatment was sowing Yunyouza 12 on October 5, Yunyouza 10 on October 15, and Yunyouza 15 on October 22 number sowing.

[0042] In the case of simultaneous sowing, the first flowering period of Yunyouza 15 is January 16 of the next year, the first flowering period of Yunyouza 10 is February 2 of the next year, and the first flowering...

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PUM

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Abstract

An accurate identification method for oil content of rapeseed under specific field cultivation conditions is disclosed. A non-shading convenient-to-irrigate field piece in a region with a suitable temperature and light intensity during a planting season is selected, before planting, the field is flattened, furrows are prepared, the furrows has a width of 2 to 3 m, 0.35-0.45m deep trenches are formed, seedlings are planted thinly, a distance between rows of the seedlings is 0.5-0.7m, a distance between plants of the seedlings is 0.4-0.6m, and after initial flowering of rapeseed, 0.05-0.15m of water is held in the trenches until harvesting of the rapeseed; plant line materials of different growth stages and different initial flowering stages are labeled with plates for marking the initial flowering time, the plant line materials with a difference of 2 to 3 days in the initial flowering stages are regarded as the same type for oil content analysis and comparison; and the plating time of line materials and variety materials and classified plant line materials of different growth stages and different initial flowering stages are adjusted according to the different growth stages to allowthe difference in the initial flowering stages to be 2 to 3 days or less for oil content analysis and comparison. The method can realize accurate identification of the oil content.

Description

technical field [0001] The invention relates to the technical field of rape genetics and breeding. Background technique [0002] Rapeseed is an important oil crop in my country, and the ultimate goal of its production is oil yield. The oil content of rapeseed germplasm is an important index in the breeding process. The genetic research on the oil content of rapeseed shows that the oil content of rapeseed is mainly determined by genetic factors, mainly determined by the maternal genotype, the genes controlling oil content have additive and dominant effects, and are also greatly affected by environmental factors. There is a genotype-environment interaction. [0003] The development of rapeseed is controlled by a large number of factors and is relatively complicated. Environmental factors such as light, temperature, and moisture all affect the oil content. The forced ripening of rapeseed by high temperature in the late stage of maturity may cause the seeds to shrink, not plum...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/359G01N33/02
CPCG01N21/359G01N33/025
Inventor 罗延青王敬乔赵凯琴俎峰李劲峰陈苇董云松符明联李根泽原小燕张云云田正书何晓莹
Owner 云南省农业科学院经济作物研究所
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