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The new high-quality indica rice variety Yuexiangzhan has the characteristic of a high harvest index
Yuexiangzhan is a "high harvest index type" conventional high-quality rice newly bred by the Rice Breeding High-Tech Research Laboratory of the Rice Research Institute of the Guangdong Academy of Agricultural Sciences. This variety passed the conventional regional trials for the early crop in 1996 and 1997 and the mixed regional trials of conventional early indica rice and hybrid rice in the South China rice region in 1997 and 1998. In February 1998, it passed the provincial variety approval of Guangdong Province for crop varieties. It has now become the control variety for the early-crop high-quality grain regional trial in Guangdong Province, a key variety promoted throughout the province, and has been included in a promotion project of the Ministry of Agriculture. Yuexiangzhan is a dual-purpose variety for both early and late crops. Its growth period for the early crop in Guangzhou is 125 days,
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Timely Control of the Rice Leaf Roller Is Essential and Cannot Be Delayed
The rice leaf roller is one of the major rice pests in our province. Its larvae damage the leaves, turning rice leaves into a mass of withered white. Especially when it attacks at the booting or heading stage, it will cause a sharp decline in rice yield. This pest has seven generations a year, and the second-generation larvae are the most numerous and cause the most serious damage to early rice. If control is not timely, it will break out in a major outbreak during the heading period, causing incalculable losses. For forecasting the rice leaf roller, the appropriate control timing should be determined based on the forecast of the occurrence period. Based on past conditions, investigation should begin 4 days after the peak of the moth flight
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Detailed introduction to the rice variety Jiayu 46
Recently, the Zhejiang Provincial Crop Variety Approval Committee approved 30 new crop varieties (combinations) including "Jiayu 46" and recommended them to farmers throughout the province. In order to help farmers better understand these new varieties (combinations). In 2002 and 2003, the average yield of this variety reached 461.5 kg per mu, an increase of 7.41% compared with the control "Jiayu 293"; the two-year average whole growth period was 110.3 days; the two-year provincial regional trial average effective panicles per mu was 201,000, filled grains per panicle 106
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Introduction to the Batai Red Fragrant Rice Variety and Its Characteristics
Batai Red Fragrant Rice was developed by the Zengcheng City Agricultural Science Research Institute in 1993 through mutation selection of the internationally renowned high-quality rice Basmati using concentrated solar radiation treatment in 1987. Production performance and grain quality characteristics: trial planting yielded 300-350 kg per mu. The grain surface is reddish-brown, and it is a fragrant soft-type rice. The slender grains contain a variety of trace elements, amino acids, vitamins and plant sterols needed by the human body, as well as flavonoid compounds; it is a medicinal rice variety (yet to be developed and utilized). Characteristics and traits: this variety's plant
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Detailed Introduction to the Jiudao 47 Rice Variety
I. Breeding Institution: Jilin City Academy of Agricultural Sciences. II. Variety Origin: In 1991, bred by crossing Jiyin 8611 as the female parent with Jiu 88-2 as the male parent, using the pedigree method. Original code name Jiudao 302. III. Characteristics: 1. Plant traits: plant height 103 cm, compact plant type, erect leaves, strong tillering ability, about 24 effective panicles per hill; 2. Panicle traits: panicle length 19.8 cm, loose panicle shape, 180 grains on the main panicle, average
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Detailed Explanation of High-Efficiency Supporting Production Technology for Oil Pumpkin and Rice (Part 2)
IV. Supporting Watermelon Interplanting Technology 1. Fertilization and transplanting. Before interplanting watermelon, apply 1800-2400 kg of organic fertilizer per 667 sq m, and 50 kg of watermelon-specific fertilizer, applied into holes before planting. Interplanting is carried out in late April. After transplanting, promptly water with a 0.3% urea solution to settle the roots, so as to improve the survival rate of the watermelon seedlings. Pay special attention that the concentration of the root-settling manure water must not be too high, to prevent damage to the seedlings. 2. Vine pruning and fruit setting. For vine pruning, adopt the two-vine or three-vine system, that is, 1 main vine with 1-2 side vines, and
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How to control subsurface pests in upland rice? A full breakdown of practical techniques
In recent years, with the application and promotion of dry-raised transplanting techniques, upland rice cultivation in Gejiu City has become a new highlight of economic growth in mountainous rural areas. How to do a good job in controlling subsurface pests is an important technical measure for developing upland rice production and ensuring increased yield and income. The common subsurface pests of upland rice mainly include white grubs (the larvae of scarab beetles), wireworms (the larvae of click beetles), mole crickets, and cutworms (cut worms). These pests live in the soil during their damaging period, feeding on seeds, young sprouts, roots and stems, causing missing plants, gaps in rows, or
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Is japonica rice hybrid rice? Recommended high-quality japonica rice varieties
The author recently learned from the Bokun Agricultural Research Institute in Yixing City, Jiangsu Province: the institute, in cooperation with the National Rice Improvement Center of the China National Rice Research Institute and other units, has achieved a breakthrough in the work of "breeding new multi-resistant, high-yield, high-quality japonica rice varieties," successfully breeding a batch of new high-yield, high-quality japonica rice lines such as 4701 and 4714 that are resistant to pests and diseases including brown planthopper and rice blast. It is reported that the bred new high-yield, high-quality japonica rice lines combine genes for resistance to brown planthopper, white-backed planthopper, rice blast, and stripe leaf blight, as well as high-yield and high-quality
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Occurrence Patterns and Control Methods of the Rice Water Weevil
The rice water weevil is an internationally recognized agricultural plant quarantine pest. It first occurred in the Americas, and the countries in Asia where it occurs include Japan, South Korea, North Korea, and others. The place where the rice water weevil was first discovered in China was Tanghai County, Hebei Province, in 1987. The area where the rice water weevil was first discovered in our province was Ji'an City in the Tonghua region in August 1993. At present, this pest occurs to varying degrees in most areas of Heilongjiang Province. I. Degree of damage caused by the rice water weevil. The rice water weevil mainly damages rice, and also damages some
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Occurrence Patterns and Control Methods of the Rice Water Weevil
The rice water weevil is an internationally recognized quarantine pest of agricultural plants. It first occurred in the Americas. In Asia, the countries where it occurs include Japan, South Korea, North Korea, and others. The place where the rice water weevil was first discovered in China was in 1987 in Tanghai County, Hebei Province. The area where the rice water weevil was first discovered in our province was in August 1993 in Ji'an City in the Tonghua region. At present, most areas of our province have this pest to varying degrees. I. Damage level of the rice water weevil. The rice water weevil mainly damages rice and also damages some grass
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