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Introduction to the Characteristics and Traits of the Rice Variety Leyou No. 2
(1) Variety source: Leyou No. 2 was developed by the Leshan City Seed Farm and Leshan City Seed Company by crossing the self-bred restorer line C3-2 with Gang 46A. (2) Characteristics and traits: The full growth period is 149.6 days, 0.6 days longer than the control. Tillering ability is moderate, the plant type is relatively compact, and the leaves are upright; the top three leaves are relatively wide, dark green, and have good luxuriance. Plant height is 110 cm, panicle length is 24.8 cm, average grains per panicle is 167.9, seed setting rate is 79.8%, and 1000-grain weight is 27.8 g. Its resistance to rice blast is superior to
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What are the remedial measures after rice suffers from flooding?
Rice has strong waterlogging tolerance. After being submerged for about 3 days, about 80% of the rice seedlings can still survive, and it is enough to strengthen management. After being submerged for 4-7 days, 50%-80% of the rice seedlings survive, so it is necessary to promptly thin and replant seedlings to ensure a sufficient population. After being submerged for more than 7 days, only about 30% of the rice seedlings survive, so replanting or switching to other crops should be considered. It is necessary to adapt to local conditions, provide guidance by category, and carefully carry out post-disaster management of rice. As long as rice seedlings still have green leaves, the inside of the leaf sheath is still green and has a certain hardness, and the white roots or root system are light yellow, and 2-
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How is rice dry-raised? Keep these thirteen points in mind
The trayless seedling-throwing technique for dry-raised rice uses a rice-specific slow-release medicinal-fertilizer super-absorbent seed coating agent called "Dry-Raising Nanny" to coat rice seeds, carry out dry seedling raising, and after pulling the seedlings, directly throw them into the field. It is a light, simplified, and cost-saving rice cultivation technique. Its key cultivation points are as follows: 1. Select the correct model. For application in dry-raised seedling throwing, the seedling-throwing type of "Dry-Raising Nanny" should be chosen. 2. Determine the dosage. Each bag (350 grams) of "Dry-Raising Nanny" super-absorbent seed coating agent coats 1-1.5 kg of rice seed. 3.
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Four key passes must be secured in controlling rice sheath blight
In recent years, sheath blight has risen to become the most important disease of rice, and it has four major characteristics: First, it occurs over a wide area. Second, there are very few varieties resistant to sheath blight. Third, the degree of damage is increasingly serious, even causing the plants to break through the top and lodge. Fourth, it first develops on the lower part of the rice plants, making it easy to overlook and miss the favorable timing for control. In control strategy, strictly securing the four passes is the key. 1. The pass of salvaging sclerotia - sheath blight mainly overwinters in rice fields in the form of sclerotia, and overwintering sclerotia generally have 60%-70% able to germinate from winter and spring through to early rice transplanting. The vast majority of sclerotia are lighter than water and can float with the water for a long time. After the rice field is irrigated,
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Ken 12 (formerly coded wd06) (rice)
Breeding institution: Hebei Rice Research Institute. Approval status: approved by the Hebei Provincial Crop Variety Approval Committee in 1997, and by the National Crop Variety Approval Committee in 1999. Variety approval number: Guoshen Dao 990004. Variety source: Jigeng 8 / Zhonghua 8 // Guandong 100. Characteristics: ideal plant type, plant height 100-120 cm, thick and tough stems, green and upright leaves, good light-receiving posture, high light energy utilization rate, panicle length 16-18 cm,
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Rice gene design breeding: scientists cultivate new varieties
The aroma of rice is richer, like fruit, with higher iron and zinc content, so there is no need to supplement other nutrients; all of this can be achieved through molecular design of rice genes. Recently, the author learned from the "Crop Molecular Design and Innovation" symposium that China is currently building a large bioinformatics infrastructure platform to ensure that high-quality genes are "hit every time." Zhu Yingguo, an academician of the Chinese Academy of Engineering, said that taking rice as an example, japonica rice with a soft and glutinous texture is more favored, and people also hope that rice aroma will be richer or have special aromas such as "fruity" notes. Moreover,
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Scientific control methods for the first-generation Asiatic rice borer (Chilo suppressalis) in rice
According to surveys conducted across Hubei Province, the overwintering mortality rate of the Asiatic rice borer this year was higher than last year, and the post-winter population base was lower than last year but still relatively high. In addition, suitable climate conditions and the expansion of high-quality rice varieties are both favorable to the occurrence and damage of rice stem borers, and the first-generation Asiatic rice borer will show a major outbreak trend in the rice-growing areas of our province, making the control situation still severe. In response to this severe situation, all localities should strengthen leadership, raise awareness, actively organize control efforts, and quickly launch a campaign to wrest grain from the pests to ensure the safety of grain production. 1. Recognize the situation clearly and strengthen organizational leadership. Last winter, our province suffered freezing ice and
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Rice cancer has met its nemesis: breeding of a disease-resistant new variety succeeds
Since the beginning of this century, rice stripe virus disease has continued to break out over large areas, in severe cases even causing rice farmers to lose their entire harvest. Rice stripe virus disease has been regarded as the "cancer" of rice. "Wuyujing 3", long recognized by the market as the main rice variety with the best taste and quality in Jiangsu Province and surrounding areas, has seen its planting area plummet in recent years because it is highly susceptible to rice stripe virus disease. Some stripe virus-resistant varieties either have shortcomings in yield and yield stability, or have not been fully recognized by the market for their rice quality. Rice farmers
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How was the disease-resistant, fragrant and soft rice variety Jiuqi Xiang No. 1 bred?
I. Breeding process 1. Parent selection The internationally renowned rice variety Basmati, a superior rare fragrant-soft line obtained by mutation of Basmati original seed through solar radiation at this institute, and Xiangsimiao No. 2 were mixed and used as the male parent, with the conventional short-stalked, high-yielding, good-resistance and widely adaptable Qingzhen No. 8 as the female parent. 2. Progeny selection After a single plant was selected in the late season of 1991, various types of single panicles with medium-short stalks and plant-grain type similar to Xiangsimiao were selected respectively from the segregating materials of the F2 and F3 generations, then multi-generation selection and propagation and single-plant line comparative trials were carried out.
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Introduction to the Characteristics and Traits of the Rice Variety Kayou 6206
(1) Variety source: A new early-maturing medium indica combination developed by Mianyang Agricultural Sciences Institute by crossing the male sterile line Katan A (Kazhu A // Tanyin early indica / 12971-66) with the restorer line 6206 (IR56 X Guangkedao Haoxianna). (2) Characteristics and traits: The whole growth period is 153 days, 3-4 days longer than Shanzhai 8; moderate plant type, strong tillering ability, neat panicle layer, stiff culm and lodging resistance, good color conversion, plant height 94 cm, effective panicles per mu 186,000, grains per panicle 130-140, seed-setting rate 85%, 1000-grain weight 30
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