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Flower-flocculation two-stage accurate identification method of boll-opening concentration of cotton varieties
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A cotton variety and identification method technology, applied in the field of cotton genetics and breeding, can solve the problem that there is not a relatively scientific and accurate method for the identification and evaluation of cotton flock concentration.
Active Publication Date: 2022-05-13
XINJIANG ACADEMY OF AGRI & RECLAMATION SCI
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Problems solved by technology
But up to now, there has not been a more scientific and accurate method for the identification and evaluation of cotton boll opening concentration.
Method used
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Embodiment 1
[0024] In 2020, 20 Xinjiang upland cotton materials will be planted in Korla, Xinjiang, and the method of the present invention will be used to accurately identify the boll opening concentration.
[0025] The specific test design and implementation are as follows:
[0026] (1) Field planting and management
[0027] Plant 20 materials according to plots, set up three repetitions, arrange random blocks within the repetitions, adopt 4 rows of 1 film, (66+10) cm machine-picked cotton plant row spacing configuration mode, plant 2 rows for each material, and the row length 2m, plant spacing 9.5cm. Field management measures completely followed the local normal field.
[0028] (2) Accurate identification of flowering rate, boll opening rate and boll opening concentration
[0029] In 2020, in the flowering stage of cotton, starting from June 25th, surveys will be conducted every 7 days, and the surveys will be divided into 5 surveys and the number of flowering and total buds of 40 c...
Embodiment 2
[0049] In 2020, 20 upland cotton materials were planted in Shihezi, Xinjiang, and the method of the present invention was used to carry out accurate identification of cotton boll opening concentration.
[0050] The specific test design and implementation are as follows:
[0051] (1) Field planting and management
[0052] Plant 20 materials according to plots, set up three repetitions, arrange in random blocks within the repetitions, adopt 1 film 6 rows, (66+10) cm machine-picked cotton plant row spacing configuration mode, plant 2 rows for each material, and the row length 2m, plant spacing 9.5cm. Field management measures completely followed the local normal field.
[0053] (2) Accurate identification of flowering rate, boll opening rate and boll opening concentration
[0054] In 2020, in the flowering stage of cotton, starting from June 25, surveys will be conducted every 6 days, and the surveys will be divided into 6 surveys and the number of flowering and total buds of ...
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Abstract
The invention discloses a flower-flocculation two-stage accurate identification method for the boll opening concentration degree of cotton varieties, and belongs to the technical field of cotton genetics and breeding. The flower-flocculation two-stage accurate identification method of cotton variety opening concentration disclosed by the present invention includes two processes of identifying the flowering rate F in the flowering stage and identifying the opening rate R in the opening stage. The identification results are supplemented; through the two stages of "flower-flocculation", the flowering rate and boll opening rate are identified respectively, and the weighted calculation of the boll opening concentration T of the cotton variety material; according to the value of T, the precise identification and evaluation of the boll opening concentration of the cotton variety . The invention provides an important basis for the precise identification of cotton boll-opening concentration, genetic improvement and new variety breeding of boll-opening concentration; it also provides an important reference method and theoretical basis for screening varieties with high boll-opening concentration in cotton production.
Description
technical field [0001] The invention relates to the technical field of cotton genetics and breeding, and more specifically relates to a flower-flocculation two-stage accurate identification method for the boll opening concentration degree of cotton varieties. Background technique [0002] Cotton is the fibercrop with the largest planting area in the world, and it is also one of the important economic crops. my country is the largest cotton planting country in the world, and Xinjiang is the region with the largest cotton planting area and the highest yield per unit area in China. According to the latest data from the National Bureau of Statistics, Xinjiang's cotton output reached 5.002 million tons in 2019, accounting for 84.9% of the country's total output. The total cotton output, per unit yield, planting area, and commodity allocation volume ranked first in the country for 25 consecutive years. [0003] In recent years, the degree of mechanization in Xinjiang's cotton ar...
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