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Introduction to the rice variety Jiudao 23, formerly known as Jiu 9423
Breeding institution: Jilin City Academy of Agricultural Sciences, Jilin Province, China. Variety source: Qingxi 96 / Tengxi 138. Review opinion of the National Variety Approval Committee: This variety is a conventional japonica rice variety, with a whole growth period of 147 days, 4 days later maturing than the control variety Jiyujing. It has good yield performance and stable yield, relatively weak resistance to rice blast, and medium grain quality. It is suitable for planting in Jilin, Liaoning, Heilongjiang, and ** in areas with an effective active accumulated temperature above 2850°C and where rice blast occurs lightly. Upon review, this variety meets the national variety approval standards and has been approved.
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Pests and Diseases Increase in Single-Season Rice, Do Not Relax Control Efforts
This year, the single-season rice planting area in our province is 6.0143 million mu. Currently, most single-season rice has entered the late tillering stage to the young panicle differentiation stage. According to recent incomplete statistics from various regions, various pests and diseases have occurred in 2.5 million mu of single-season rice fields, an increase of 40% compared to the same period last year, including 1 million mu of rice planthopper, 500,000 mu of rice leaf roller, 400,000 mu of stem borer, 400,000 mu of sheath blight, and 80,000 mu of rice blast. 1. Rice planthopper: This year, the occurrence of rice planthopper is severe, and the large amount of foreign insect sources migrating in is rare in past years.
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Rice carefully bred for 6 years finally yields a high-quality new variety
A kilogram of rice sold for a high price of 188 Hong Kong dollars?! A reporter learned yesterday at the provincial agriculture and forestry crop breeding research summary meeting that this was a sales record once set by the Ezhong No. 5 rice bred in our province. Ezhong No. 5 rice is the fruit of 6 years of selective breeding by scientific and technical personnel in our province. According to the introduction, He Shengqiu of the Rural Science and Technology Division of the Provincial Department of Science and Technology found the rice very delicious when visiting abroad in 1998, so he brought back 107 grains of rice and handed them to Chen Yiyi, a researcher at the Provincial Academy of Agricultural Sciences. Chen Yiyi treasured them like a precious treasure,
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Occurrence and Control Methods of Rice Dwarf Disease in Japonica Rice
I. Damage Symptoms The rice plant becomes stunted, with increased tillering, dark green leaves, and transparent yellowish-white dashed line streaks on young leaves and leaf sheaths. When the disease occurs at the seedling stage, tillering is reduced and the plant cannot head; when it occurs after booting, yellowish-white streaks appear only on the flag leaf or other leaf sheaths, and late-onset plants mostly produce neck-enclosed heads, small heads, many empty and shriveled grains, and a low seed-setting rate. II. Preventive Measures Once japonica rice contracts dwarf disease, it is very difficult to cure, so comprehensive preventive measures should be actively adopted. 1. Select disease-resistant
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Introduction to Jiahua No. 1, a new conventional late japonica rice variety
Jiahua No. 1 is a medium-maturity late japonica rice variety newly bred by the Jiaxing Academy of Agricultural Sciences in Zhejiang Province. It passed the approval of the Zhejiang Provincial Crop Variety Approval Committee in April 2004 and is suitable for cultivation as late japonica rice in northern Zhejiang and ecologically similar areas. In the Jiaxing single-crop late japonica rice regional trials in 2001 and 2002, the average yields per mu were 582.4 kg and 589.6 kg respectively, and the average whole growth period over the two years was 158 days; in the 2003 Jiaxing production trial, the average yield per mu was 523.9 kg. Jiahua No. 1 is
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Introduction to the Characteristics and Cultivation Techniques of the Rice Variety Jiudao 44
I. Breeding Institution: Jilin City Academy of Agricultural Sciences. II. Variety Origin: In 1995, bred by the pedigree method from a cross using Ji 93D22 as the female parent and Jiudao 16 as the male parent. Original designation Jiudao 101. III. Characteristics: 1. Plant traits: plant height 100 cm, compact plant type, upright leaves, strong tillering ability, about 22 effective panicles per hill; 2. Panicle traits: panicle length 17.8 cm, loose panicle shape, 220 grains on the main panicle, average 120 grains per panicle, grain setting
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Detailed Explanation of the Soft-shelled Turtle-Rice Rotation Ecological Farming Model
Generally, after 2 to 3 years of raising soft-shelled turtles, one season of rice is planted. In mid-May, juvenile soft-shelled turtles are stocked, with a size of about 180 g body weight and a stocking density of 500 to 1000 turtles per mu. They are fed soft-shelled turtle compound feed together with live fish, and are caught before the end of July the following year. After catching the turtles, late rice is planted from late July to early August. During the rearing process, aside from using quicklime and other drugs to clear and disinfect the pond, no antibiotics, chlorine preparations, or other chemical drugs are used. For disease prevention, Chinese herbal medicines such as Banlangen (Isatis root) are mostly used. Regarding rice cultivation techniques,
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Detailed Explanation of Main Cultivation Techniques for the New Late Japonica Rice Variety Ning 88
1. Sparse sowing for strong seedlings, transplanting at the right time. For single-season late rice cultivation, the sowing period is June 5-15, with a seeding rate of 2.5-3.0 kg per mu, a seedling bed sowing rate of 30 kg per mu, and a seedling age of 25 days; for continuous late rice cultivation, the sowing period is June 25-30. The seeding rate is about 3.0 kg per mu, the seedling bed sowing rate is 25-30 kg per mu, and the seedling age is about 25 days. For continuous late rice mechanical transplanting or seedling throwing cultivation, the seeding rate is 3.0-4.0 kg per mu, the seedling bed sowing rate is 35-40 kg per mu, sowing on July 5-1
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Recommended new early indica rice combinations: These two are high-yielding, mid-maturing and high-quality
T You 898: A new early indica rice combination bred by Hunan Longping High-Tech Nongping Seed Industry Co., Ltd. It passed variety approval in Jiangxi Province in 2005 (approval number: Gan Shen Dao 2005080L Characteristics: When cultivated as early rice in Jiangxi, the whole growth period is about 115 days. Plant height 95 cm, good plant and leaf type, relatively strong tillering ability, thick and sturdy stems, high earing rate, good color retention at later stages, no grain shattering. 667 sq m (1 mu) effective panicles 220,000, total grains per panicle 119.6, 1000-grain weight 24.7 g, grains slender, long
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How to control rice thrips? Control methods and technical key points
(1) Life habits: The rice thrips is very small, with adults only 1 mm to 1.5 mm long, dark brown. In winter, adults overwinter in gramineous weeds and on wheat crops. During the seedling-raising period of the following year, when the seedlings grow to 2 to 3 leaves, they fly into the seedling fields to lay eggs and reproduce. The insect body is small and very active, able to fly and jump. Adults are attracted to green, and after the seedlings are transplanted, they enter the tillering stage when food is abundant, which facilitates massive egg-laying and reproduction, damaging the heart leaves and young tender tissues. In the early stage of leaf damage, small white spots appear, and the upper part of the leaf tip curls inward, causing
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