Field investigation sampling method of sunflower broomrape
A sunflower and field technology, applied in sampling devices, material inspection products, biological tests, etc., can solve problems such as the inability to assess the degree of damage to sunflowers, the economic loss of sunflowers, and the lack of field investigation methods for sunflowers.
Inactive Publication Date: 2012-11-21
陈 卫民
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[0003] The present invention is based on the 2009-2011 Natural Science Foundation Project of the Xinjiang Science and Technology Department, No. 2009211A12 "Study on the Biological Characteristics and Detection Technology of Sunflower Ridge in the Ili Valley" and found that there is no field investigation method for sunflower rank in China, and it is impossible to evaluate the occurrence of sunflower rank. , the degree of harm and the economic loss caused to sunflowers, through three years of field investigation and research, the field investigation and sampling method of sunflower Liedang has been obtained, which has important scientific value
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[0036] Sunflower parasitic weeds-sampling and investigation methods of sunflower Liedang, divided into two types: systematic sampling and field sampling;
[0037] Step 1 System sampling:
[0038] 1) The time is from late June to early and mid-September every year, sampling once every 7 days;
[0039] 2) The area of the sampling area is 5 mu, and the diagonal 5-point sampling method is used to randomly sample in the field, and each sampling point is 5m 2 , record the sunflower diameter, plant height, disk diameter; column height, parasitic depth, growth period;
[0040] Step 2 field sampling:
[0041] 1) Sampling twice during the sunflower budding period from the end of June to early July and the blooming period in mid-to-late July;
[0042] 2) The area of the sampling area is 10 mu, and the diagonal 5-point sampling method is used to randomly sample in the field, and each sampling point is 5m 2 , record the number of columns, height, growth period; sunflower diameter, ...
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The invention provides a field investigation sampling method of sunflower broomrapes, which comprises system sampling and field sampling; the system sampling is that: 1) the sampling time is from the last ten-day period of June to the first and middle tem-day period of September in every year, and the sampling is carried out once every 7 days; 2) the sampling area is 5-10 mu, and a diagonal 5-point sampling method is adopted with each sampling point being 5 m2, and biological data are recorded; field sampling is that: 1) the sampling time is from the end of June of a sunflower squaring stage to the middle and last tem-day period of July of a full flowering stage, and the sampling is carried out twice; 2) the sampling area is 5-10 mu, and a diagonal 5-point sampling method is adopted with each sampling point being 5 m2, and biological data are recorded. The broomrape parasitism is graded as follows: 0 grade represents no broomrape; 1 grade represents not more than 5 broomrapes within 5 m2; 3 grade represents 6-10 broomrapes within 5 m2; 5 grade represents 11-20 broomrapes within 5 m2; and 7 grade represents not less than 21 broomrapes within 5 m2. The sunflower parasitism resistance is graded as follows: immunity (I) represents a parasitism resistance index of 1.00; high resistance (HR) represents a parasitism resistance index of 0.80-0.99; middle resistance (MR) represents a parasitism resistance index of 0.40-0.79; middle sensitivity (MS) represents a parasitism resistance index of 0.20-0.39; and high sensitivity (HS) represents a parasitism resistance index of below 0.19; the investigation results are obtained by formula calculation.
Description
technical field [0001] The invention relates to the application of plant protection, and the method is suitable for the sampling survey of sunflower parasitic weeds-sunflower leitang. Background technique [0002] At present, there is no sampling method for field investigation of sunflower radang in China, and a sampling method for field investigation of sunflower radang is formulated to meet the needs of sunflower production. [0003] The present invention is based on the 2009-2011 Natural Science Foundation Project of the Xinjiang Science and Technology Department, No. 2009211A12 "Study on Biological Characteristics and Detection Technology of Sunflower Ridge in Yili Valley" and found that there is no field investigation method for sunflower rank in China, and it is impossible to evaluate the occurrence of sunflower rank. , the degree of harm and the economic loss caused to sunflower, through three years of field investigation and research, the field investigation and samp...
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Inventor 陈卫民
Owner 陈 卫民