Method for producing virus-free potato breeder's stock
A technology of potato and original seed, which is applied in the field of producing original seed of virus-free potato, can solve the problems of small number of tubers per plant, insufficient nutrient supply, and high requirements for the reproduction and production conditions of original seed in the next season, so as to increase the production quantity and single grain weight, promote the improvement of production level, and overcome the effect of production bottleneck restriction
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Embodiment 1
[0021] Embodiment 1: comparative experiment-the inventive method and traditional method application contrast
[0022] In the autumn of 2007, 5 treatments of vermiculite, perlite, vermiculite + perlite, river sand, nutrient soil + river sand + vermiculite were used as cultivation seedbeds. The thickness of each treatment was 18cm, and treatment 5 was 10cm of nutrient soil + river Sand 5cm + vermiculite 3cm, nutrient soil is vegetable garden soil, add 40g of potassium sulfate compound fertilizer, 30g of ammonium phosphate, 10g of urea, 10g of calcium magnesium phosphate fertilizer, 150g of decomposed tung tree per square meter and mix well. Each treatment variety is Chuanyuzao, and the test tube seedlings are planted 10m according to the row spacing of 5cmx7cm. 2 . 3 repetitions. Before harvesting, samples were sent to the Plant Quarantine Station of the Sichuan Provincial Department of Agriculture to test for the absence of six viruses: PVX, PVY, PLRV, PVS, PVM, and PVA. The...
Embodiment 2
[0029] In the autumn of 2009, the mixed three-dimensional layered cultivation method of treatment 5 was adopted. On the vegetable garden soil (thickness 12cm), 50g of potassium sulfate compound fertilizer, 30g of ammonium phosphate, 10g of urea, 10g of calcium magnesium phosphate fertilizer, and 200g of decomposed Tongku were evenly spread per square meter. , cover the river sand with a thickness of 5cm, mix it evenly, and spread vermiculite 3cm on top, and then plant and manage the test tube seedlings according to the technical requirements. The cultivated variety is Qinyu 30, and the planting area is 96m 2 , a total of 207kg of original seeds, 74,000 grains were harvested, and the average production of original seeds was 2156.3g / m 2 , 771 grains / m 2 . Before harvesting, the expert group sent by the Sichuan Provincial Department of Agriculture conducted on-site sampling of the plants, and then the Sichuan Provincial Plant Quarantine Station conducted DAS-ELISA virus detectio...
Embodiment 3
[0031] In the spring of 2010, in 10 simple and simple greenhouses, all adopted the method of processing 5 mixed three-dimensional divisions. The thickness of the seedling bed was 25cm, and the nutrient soil was 15cm (60g of potassium sulfate compound fertilizer per square meter, 30g of ammonium phosphate, 15g of urea, calcium and magnesium Phosphate fertilizer 10g, decomposed tung tree 200g), river sand 7cm, vermiculite 3cm, and others are operated according to the concise technical requirements. The cultivated variety is Bashu No. 10, and the planting area is 1200m 2 . Plant sampling and DAS-ELISA virus detection were carried out by the Plant Quarantine Station of Sichuan Provincial Department of Agriculture before harvest. Result 1200m 2 A total of 2,517kg of original virus-free potato seeds, 903,600 grains, and an average yield of 2,097.5g / m were harvested 2 , 753 grains / m 2 . Virus detection results: none of the products contain any detected virus, and the pass rate is...
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