A method for increasing the hybridization rate of quinoa
A technology of hybridization rate and quinoa, which is applied in the field of crop cultivation, can solve the problems of small quinoa flowers, complicated quinoa not suitable for detasseling, and obstacles in quinoa breeding work, so as to achieve strong pollen vitality, shedding pollen quantity does not scatter in all directions, and shedding pollen The effect of a large amount
Active Publication Date: 2017-09-15
AGRI BIOTECH RES CENT OF SHANXI PROVINCE +1
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Problems solved by technology
[0004] The present invention provides a method for improving the hybridization rate of quinoa in order to solve the problem that the quinoa flower is small and complicated and is not suitable for detasseling, which brings great obstacles to the quinoa breeding work
Method used
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Experimental program
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Effect test
Embodiment 1
[0015] Embodiment 1: A method for improving the hybridization rate of quinoa, planting in a greenhouse, selecting parents, processing top flower buds, isolating, emasculating, pollinating, and obtaining hybrid seeds, specifically includes the following steps:
[0016] 1. Planting in the greenhouse: Quinoa seeds were sown in small flower pots of 20cm×30cm, and each pair of parents was set up with four treatments, with an interval of five days between each treatment. The treatment methods are shown in Table 1:
[0017] Table 1
[0018]
1d
6d
11d
16d
male parent
Sow 5 grains
Sow 5 grains
female parent
Sow 5 grains
Sow 5 grains
Sow 5 grains
Sow 5 grains
[0019] 2. Select parent: when quinoa grows for 50-60 days, select a plant with a height of 30-40cm, no side branches, well-developed, and suitable plant size and shape as the parent;
[0020] 3. Top inflorescence treatment: After entering the phenotype stage,...
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The invention belongs to the technical field of crop cultivation, and provides a method for increasing the hybridization rate of quinoa to solve the problem that the quinoa flower is small and complex and is not suitable for detasseling, which brings great obstacles to the quinoa breeding work. Greenhouse planting, parent selection, top flower bud treatment, isolation, emasculation, pollination, hybrid seeds were obtained, and the magnifying glass assisted inoculation loop technology was used to solve the problem of difficult emasculation of quinoa flowers. The optimal pollination time was determined to be around 9:30 am and 3:00 pm through microscope observation and actual operation results. The 3:1 mode is used, that is, three male parents and one female parent are pollinated in vivo, the pollen has strong vitality and the flowering period lasts for a long time. Using the method of vibrating sticks to pollinate, it has stronger regularity and better controllability than the traditional fingering method and vibration method. The vibration amplitude is small and the intensity is high. The hybridization rate reaches 35%‑40%.
Description
technical field [0001] The invention belongs to the technical field of crop cultivation, and in particular relates to a method for improving the hybridization rate of quinoa. Background technique [0002] Quinoa (Chenopodium quinoa willd) is native to the Andes in South America. It is the main traditional food of the Inca indigenous people. It has a planting history of more than 5,000-7,000 years. Because of its unique rich and comprehensive nutritional value, it has nurtured the Inca nation. The ancient Incas called it "the mother of food". Due to the lack of attention to the adjustment of dietary structure in the process of living habits and diet, "three highs" have become the number one killer affecting human health and life safety. Therefore, it is necessary to find a safe, healthy, nutritious, natural and convenient food. urgent needs of today's society. Quinoa is a whole grain, whole nutrition, whole protein alkaline food, which is rich in lysine, calcium, magnesium,...
Claims
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IPC IPC(8): A01H1/02
Inventor 董艳辉唐朝晖王亦学李亚莉秦永军曹秋芬任永康侯丽媛赵兴华刘江王长彪杨方赵武娟于宇凤
Owner AGRI BIOTECH RES CENT OF SHANXI PROVINCE