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Quality of new varieties in the late hybrid Jinyou Breeding and application of 12

(2004) 04-0038-02 hybrid high yield of new portfolio, A Late Breeding Jinyou 38 Zhou, Jun Ming Tu, WANG Huan, Zhang Jinlin, Wang Wanfu, Huang Ling, Zhang thick (1. Institute of Agricultural Sciences in Hubei Province, Huanggang 438000; 2. Wuhan Golden Harvest Seed Co., Ltd., Wuhan 430070, China) Abstract: This paper introduces two high-quality rice GB Jinyou 38 (trade name: Fengdeng 1) of the breeding process, characteristics, yield, grain quality , resistance performance and main cultivation techniques. Keywords: A Late hybrid; Jinyou 38; breeding; GB two CLC: S511.3 38, 23A and Gang Jin Hui bred with a group of mature, high-quality, lodging resistance strong late hybrid new combination. Gang of 38 was restored in 1996, I spoke with the restorer line 838 as the female parent and the convergence Hui Hui 838M. / Minghui 63F. Backcross,[link widoczny dla zalogowanych], the backcross BC. Select two good generation plant mix, according to several generations of pedigree method choice after years of incubation, a medium maturity, high quality, strong with the force of the WA Department of indica restorer line (Figure 1). 1999-2000, measured in Hainan with gold 23A/R38 combination. By 2001, the two-night strain identification of its advantages, to participate in the 2001 Comparison Test of 2002, directly apply for the two-night Regional Trial of Hubei Province in 2003, continued into the trial, while standing in the province of Hubei seed management arrangements the show trials and large-scale demonstration plant. October 15, 2003 by group of experts to inspect the rice in Hubei Province. March 2004 through the Crop Variety Approval Committee of Hubei Province. 2 Characteristics and quality of the results of Resistance 1) Characteristics. 38 as in mature Jinyou indica hybrid rice combination. Plant stem and sheath, apiculus purple. More compact plant type, leaf width is long and straight, leaves the next Wo. Height 98era so, thick stem, more Naifei lodging. Medium tillering, panicle was higher, plant dark green leaves, big spike and more grains. Grain density medium. Big grain awnless. Almost the same main tiller ear, ear layer and tidy, mature Yeqing Zi Huang. Panicle 3.18 million per hectare per panicle 109.9, 86.5 grains, 78.7% seed set, grain weight 29.83g. June 16-20, sowing, September 10 heading, 12 October so mature about the whole growth period 116d, main stem leaf number of 14.5 leaves. 2) The grain quality indicators. Brown rice was 82.1%, 62.6% of milled rice rate,[link widoczny dla zalogowanych], chalky grain rate 15. O%, chalkiness 24%, 22.1% amylose content, gel consistency 62mm, aspect ratio 3.3, rice quality evaluation for the GB two high-quality rice, rice soft and sticky, palatability,[link widoczny dla zalogowanych], Taste good. Received date :2004-04-01 Fund Project: Science and Technology Department of Hubei Province Per hectare Sprayed 3 times, 5% from the female parent see the spike beginning with spray 3d, use various approximate equivalent (for the first time a little lighter) method, the amount of time per square meter respectively, 6o. 0g, 67.5g and 67.5g. From their parents every day since the beginning of flowering period of the flowering rush powder 3-5 times, even in time 8 ~ lOd. �� strictly to the complex and Purity. In addition to doing isolation work, in the early heading to step up to the complex, a day before flowering, hybrid strains of shedding all the removal of later appeared in the late heading of miscellaneous strains must also be removed in time to ensure that hybrid seeds purity. 6 demonstration and promotion of a total of 1998 Planted in Huanggang City 03300 hm2, of which group winds County Huilong demonstration 1hm2 ~ yields 7770kg, compared with 15.2% yield Jinyou 77, high above the terraces of 9O00kg; 1999 Total Model 03300 hm2, of which the Royal Dianxiang Huangzhou District Model 0.75hm, yield of 8380kg, compared with the control 1 E hybrid indica rice yield 10.8%; 2001-2003 3-year demonstration and extension of the cumulative 10 million hm. Currently, the portfolio has been extended to Hunan, Jiangxi, Anhui, some counties and cities. As the combination of high yield,[link widoczny dla zalogowanych], fine quality,[link widoczny dla zalogowanych], so it has broad development prospect.
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