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Study on Virus-free Potato Breeds Sifting and Cultivating Method that Can Facilitate Growth in JiLin City

Author: ChengZhe
Tutor: AiJun；ZhaoWenRuo
School: Chinese Academy of Agricultural Sciences
Course: Planting
Keywords: Virus-free potato Variety Facility Yield Quality Benefit
CLC: S532
Type: Master's thesis
Year: 2007
Downloads: 102
Quote: 1
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Abstract


The test varieties, planting density, sowing time, facilities, the amount of potassium fertilizer, optimum harvest period, more systematic study of the the Jilin region early spring virus-free potato key factors contributed to cultivated varieties screening and cultivation methods. Order to establish the Jilin region early spring of virus-free potato contributed to the cultivation of the best mode. The research shows that: Dongnong 303 virus-free potato Favorita Zaodabai Kexin No. 4 (CK) and potato No.3 five species of screening material growth period, plant traits, economic The comparison of the yield and quality traits. In the the Jilin region led to cultivation of virus-free potato Favorita it maturing varieties appropriate. Favorita virus-free potato production kinds of experimental materials to study the impact of planting density on tuber yield, tuber number of large and medium-sized potato rate, planting density on plant stems and leaves of fresh weight, leaf area index. Different planting density has a significant effect on potato growth, production reached a significant and very significant level. Virus-free potato Favorita in Jilin area solar greenhouse cultivation density row spacing of 50 cm, the best plant spacing of 21 cm. 3 grams new virus-free potato production kinds of test materials, different sowing times and two-factor test facilities to explore different sowing time and greenhouse, plastic mulching small shed Ridge, Ridge mulching and not covered Ridge Tillage production of virus-free potato. Different treatment combinations to achieve significant levels of virus-free potato yield impact of the growth period, plant traits and economic traits also have a more obvious impact. Virus-free potato cultivation in early spring in the Jilin area solar greenhouse, appropriate early sowing, sowing in February 28, the optimal treatment combinations using ridge film mulching small shed. Kexin No. 4 virus-free potato production species as test material, the potash fertilizer application rate test study of K application rate on the yield and quality of potato. Potato plant height, underground aboveground biomass production, the growth of economic output, increased potassium can promote, promote the enlargement of the underground tubers, but excessive application the potash will behave in a certain negative effects. The potash can improve the starch content of the potato, and ascorbic acid content first increased and then decreased. Jilin area in early spring greenhouse cultivation of virus-free potato to applied potassium chloride 15 to 20 kg / 667 square meters is appropriate. To Favorita it is virus-free potato production species as experimental material, different harvest time trial to study the impact of different harvest production and value. Potato with the potato harvest period delayed economic output, continuously improve, remain unchanged after peak production, but the production value of the trend first and then decreased, and finally remained stable harvesting period in Jilin area in late May to In mid-June for harvesting suitable period. 6. Virus-free potato cultivation model the Jilin area solar greenhouse in early spring: February 28 to March 15 planting varieties selected detoxification Favorita, the density for a line spacing of 50 cm x 21 cm plant spacing, K fertilizer amount 15 to 20 kg / 667 m (potassium chloride), solar greenhouse ridge film mulching small shed in mid-harvest in late May to June, it is possible to achieve good economic results.

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