The special-purpose burst corn hybrid Yubao No.2 Yubao 2 (Special explosion No.2) was selected and used by Henan Agricultural University to produce two independent self-breeding burst corn inbred lines with independent independent knowledge. property. Yubao 2 is the only hybrid in Henan province that participated in and passed the national first burst of corn regional test, and has shown “double high†(high yield, explosive properties) in the national burst popcorn regional test for two consecutive years. Outstanding advantages, in March 2002 approved the approval of the Henan Province (reviewed as Yu Juyu 2002002), in March 2003 through the approval of national varieties (validation for the National Jude 2003040). In 2002, he won the Gold Medal of Henan University Science and Technology Achievement Exhibition Fair. Yubao 2 is the only special burst corn approved by Henan Province and one of the first batch of 3 burst corn varieties approved by the state. Its comprehensive trait performance is at the leading level among domestic burst corn varieties, filling the gap. The gap between popcorn varieties and even special-purpose corn varieties in Henan Province. The outstanding advantages of Yubao 2 are as follows: 1. High grain yield and excellent expansive properties Yubao 2 participated in the burst corn test in the first year of the country in 2000. In the experiment of 8 pilots in 5 provinces across the country, Production of 201.7 to 325.3 kg, an average of 239.15 kg, ranking third in 8 hybrids. The puffing multiple was 29.5 ml/ml, the popping rate was 97.8%, the mixed flower type, flavor and palatability grade were 1.3 (optimal), and the comprehensive evaluation of quality index ranked first. In the experiment of five pilots in five provinces in 2001, the output of Yubao District 2 was 2.56 to 5.79 kilograms, with an average of 4.64 kilograms (equivalent to 390.85 kilograms per mu), ranking the first in 7 hybrids. Compared with the control Shenbao 3, the output was increased by 16.6%, which was 15.71% higher than that of the tulip. Extrusion multiple 29.9ml/ml, mixed flower type, comprehensive evaluation index of quality index was 2. The average yield of 315 kilograms per year for two years, ranking first in the test hybrids. On September 1, 2001, six experts from Henan Province's Seed Management Station organized Henan Province Agricultural Technology Extension Station and Henan Agricultural University conducted an inspection of the field and demonstration sites of popcorn varieties. Experts agreed that Yubao No. 2 (Special explosion No. 2) performed outstandingly, the fields were neat and tidy, yield and other agronomic traits were excellent, and comprehensive disease resistance was good, which was significantly higher than that of similar domestic varieties. It fills the gaps in special-purpose maize varieties in Henan Province, and meets the market diversification and agricultural structure adjustment requirements for high-quality, special-purpose corn varieties. 2. Excellent nutritional quality According to the inspection results of the Agricultural Products Quality Supervision, Inspection and Test Center (Zhengzhou) of the Ministry of Agriculture, the crude protein content of the grain of Yubao 2 is 13.65%, crude fat content is 4.25%, crude starch content is 71.05%, and lysine content 0.27%. 3.Comprehensive Disease Resistance Strong Yushu 2 On the National Bursting Corn Regional Examination from 2000 to 2001, none of the occurrence of rough dwarf disease occurred, the size of the large spot was 1.5, and the rate of stalk rot was 4.9~6.8%. The smut rate was 0.8%, the rate of bacterial wilt disease was 5.3%, and the length of the medlar was moderate. According to the results of the disease resistance assessment of the special varieties of corn planted in the national plant protection institute of Hebei Academy of Agricultural Sciences in 2001, Yubao No. 2 was applied to large spot disease, Curvularia leaf spot, stem rot, head smut, etc. Major corn diseases and corn borers showed high resistance and resistance. According to the results of the disease resistance assessment carried out by the Plant Protection Institute of the Henan Academy of Agricultural Sciences from 2000 to 2001, Yubao 2 was resistant to bacterial wilt, smut, and dwarf disease, and it was resistant to the disease. Small spot disease resistance.
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