Chen Yurong (Songxi County Agricultural Bureau, Fujian Province)
Super Rice II You 6 was presided over by Liu Wenbing, a well-known hybrid rice seed breeder and national expert with outstanding contributions. The Fujian Institute of Science, Science and Technology undertook the “High Quality and Specialty Rice Breeding†Breakthrough super rice with comprehensive traits bred in the "Industrialization" project (2001Z100). This combination is a collaboration between Fujian Youxi County Institute of Fine Seed Biochemistry and Fujian Dongfang Seed Co., Ltd., which uses the II-32A sterile line with high grain-to-grain plentiful and out-cross rate and has good combining ability and strong restoring power. The strong and excellent recovery of independent intellectual property rights is Philippine No. 6, a new combination of mid-late rice combined with glutinous type and heavy ear type super hybrid rice. In 2005, it was approved by the Fujian Crop Variety Approval Committee (Jijingdao 2005G01); in 2005, it was introduced in Hunan Province (approved); in 2007, it passed the approval of the Yunnan Crop Variety Approval Committee (Zhenjiandao 200707); at the beginning of 2008 Approved by the Guizhou Crop Variety Approval Committee.
This combination is a basic nutrient type. The trial period for the entire trial in the Zhongdao district of Sanming City, Fujian Province was 145 days, and the total growth period for the single-late trial in Songxi County was 142 days, which was about 2 days later than the Shanyou 63. 16.5 leaves of main stem, plant height 120cm, panicle length 24 to 25cm, total ear 185.6 grains, seed setting rate 85% to 90%, effective panicles 2.4 to 2.8 million ears/hm2, medium tillering force, plant leaf morphology Good, thick stalks, large panicles and large grains, high seed setting rate, good coloring at the later stage, excellent comprehensive traits, strong resistance to disease, strong resistance, and great potential for yield increase.
In 2003, they participated in production trials and the Sanming City Rice Specialization Group carried out an actual field cut of 1hm2 and a yield of 10086kg/hm2 on the experimental post-harvest rice production test field in Qijing Village, Xicheng Town, Youxi County. The yield was 25.85% higher than that of the control Shanyou 63; On the 6th, in the Mayang Village, Xicheng Town, Youxi County, Fujian Province, the implementation of high-quality, high-efficiency planting technology demonstration for “100 mu super rice†was implemented. The expert’s site acceptance of Fujian Provincial Leapfrog Office was 6.92 hm2, and the average production of the first season of renewable rice was 12117 kg/year. Hm2, the output ranks first in the world; the average yield in the regeneration season is 6267kg/hm2, and the average annual production of renewable rice is 18384kg/hm2. On September 15, 2004, IIyou 6 was invited by the Ministry of Science and Technology of Fujian Province to inviting the China Rice Research Institute and Yunnan. Experts from the Agricultural University, Yunnan Academy of Agricultural Sciences, Yunnan Province Seed Station and Anhui Province Seed Station and the Fujian Academy of Agricultural Sciences, conducted an actual site acceptance inspection of II You 6 in Taoyuan, Yunnan, 0.07l3hm2. The average yield was as high as 18,290kg/ Hm2, the new record for rice production in the world, has become the new super rice combination that exceeds 0.067 hm2 and yields 18,000 kg/hm2 for the first time in China. In 2005, we participated in the regional trial of group B of Yunnan Indica Hybrid Rice, with an average yield of 10095kg/hm2 and a yield of l2520kg/hm2 at the Honghe pilot, ranking the first in the participating group. At the same time, in 2005, another demonstration planted 0.133hm2 in Baoshan City, Yunnan Province, with an average yield of 12840kg/hm2.
In Songxi County Seed Management Station in 2004, 0.4hm2 was introduced for trial planting, and the average yield was 9310kg/hm2, which was 21.42% higher than that of the control Shanyou 63. In 2005, it participated in the single late rice new varieties (combination) test of Songxi County Seed Management Station. The average yield was 9140kg/hm2, which was 18.41% higher than that of the control Shanyou 63. In 2006, the Songxi County Seed Management Station established a single-season high-yielding demonstration rice 6.67hm2 with an average yield of 9450kg/hm2, which was 22.8% higher than the control Shanyou 63.
The combination has a longer growth period and requires a larger amount of fertilizer, and it is better to select the fertility in the upper field for planting. The cultivation strategy is mainly focused on the number of effective panicles and spikes, increasing the seed setting rate, taking into account the number of grains and grain weight, and striving for effective panicles of about 2.7 million spikes/hm2 to ensure high yields and harvests.
1 timely planting and cultivation
Before seeding, the seed treatment should be done first. The seed to be cleaned should be sunned for 2 days, soaked with 25% carbendazim solution for 2 to 3 days, and then germination and sowing. In Songxi, the combination is suitable for mid-season cultivation or single-season cultivation. The sowing date should be planted from late April to early May, with wet seedlings and 30 to 35 days of age. Using diluted seeding, seeding volume in Putian was controlled at 112.5 kg/hm2, and that for Honda was 11.25 g/hm2. The seedlings were sprayed with a solution of paclobutrazol at a concentration of 300mg/kg to promote tillering. The seedlings were applied on the base of the applied base fertilizer, and the weaning fertilizer was applied at the time of the three-leaf and one-hearted period. The transplanted manure was applied 5 to 7 days before transplanting. In order to prevent and treat pests and diseases in paddy fields such as black-leafed leafhoppers (transmission of poisons), it is possible to plant 2 to 3 tillers and shoots with a single plant.
2 Honda farming
After harvesting, timely plowing, smashing and leveling, applying base fertilizer, and then retaining shallow water planting hoe after one hoeing; cold rotted field is suitable for opening rickshaw, box surface width is about 150cm, box groove width is 20 to 30cm, groove depth is 10cm .
3 rational close planting, insert the basic seedlings
The combination has a strong growth trend, but the medium tillering power is suitable for close planting and planting in the basic seedlings. Transplanting specifications adopt a wide-row narrow-strain: 16.5cm × 26.5cm or 20.0cm × 26.5cm to provide sufficient space for rice seedlings to grow. Individual growth, the number of clusters of 180,000 to 225,000/hm2, clusters of 2 grain glutinous rice, basic seedlings 1.2 million / hm2 or more.