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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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What are the methods for breeding improved varieties of Schisandra chinensis?
Schisandra chinensis is a plant of the Magnoliaceae family and a valuable medicinal herb, with effects of astringing the lungs, nourishing the kidneys, stopping sweating, stopping diarrhea, and securing the essence. Schisandra chinensis prefers a humid environment (but does not tolerate waterlogging), is cold-resistant, needs moderate shade, and is suited to humus soil or loose, fertile loam. It has strong adaptability and can be grown in both northern and southern China. It often grows wild in coniferous and broad-leaved mixed forests, mountain gullies, along stream banks, among small trees and shrubs, or at forest edges and in open areas within forests. Methods for breeding improved varieties 1. Seed propagation. After the fruits are harvested in autumn, remove the flesh and wash out the seeds, then dry and store them.
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What peach tree varieties are there? These few high-quality varieties are the most sought after
China is a major peach-growing country, with extremely rich variety resources, and its cultivation technology also holds a leading position in the world. Therefore, in recent years, although China has also introduced some peach tree varieties from abroad, they have not had much impact on China's peach production. In China's nursery stock market last year, the peach tree varieties that were relatively sought after were almost all local varieties. So, which peaches are relatively sought after at present? Zhang Shubin, a researcher at the Beijing Academy of Agriculture and Forestry Sciences, answered this question. Industry experts usually divide peaches into white peaches, nectarines
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Introduction to Ornamental Jujube Varieties and Key Cultivation Techniques
Jujube is a traditional fruit tree species in China, planted in both the north and the south. Developing ornamental jujube for urban greening, courtyard beautification and potted display has broad prospects. 1. Suitable varieties for ornamental jujube (1) Dongzao (winter jujube). Ripens in early November, single fruit weight 30 g, fruit round and bright red, thin skin, crisp flesh, juicy and sweet. (2) Chengtuo jujube. Ripens in mid-September, single fruit weight 15 g, fruit shoulders have grooves and ridges, glossy and attractive, thick flesh, small stone, red color, sweet and crisp with a rich aroma. (3) Pear jujube. Ripens in September, single
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What are the key points for choosing peach varieties for protected cultivation?
The correctness of variety selection is the key to successful protected cultivation. The purpose of protected cultivation of peach trees is to bring them to market early, so when selecting varieties, priority should be given to early-maturing and extremely early-maturing varieties with a short development period. A fruit development period of 60 to 70 days is appropriate, and no more than 80 days. Varieties should also have a short natural dormancy period and a low chilling requirement (cumulative chilling below 7.2°C of less than 850 hours), abundant pollen, a high self-fruitfulness rate, high yield, large fruit, good fruit quality, and tolerance for storage and transport. If they can
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Which peach and apricot varieties are suitable for courtyard planting?
Okubo Okubo originated in Japan and is now the main peach cultivar in North China. The fruit is nearly round, with an average single fruit weight of 220 g. The fruit apex is round and slightly concave, the suture is shallow and fairly distinct, the two sides are fairly symmetrical, and the fruit shape is uniform. The ground color of the skin is light greenish yellow, with red streaks. The flesh is milky white, with red on the sunny side, fine and soft in texture, juicy, with few fibers, aromatic, and freestone. The soluble solids content is 12%, and the quality is excellent. In the Beijing area, the fruit is harvested in late July. The fruit development period is 100 days. This
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Introduction to American almond varieties and their main characteristics
The most important cultivated variety in the United States, accounting for more than half of total US almond production. It has been introduced and cultivated in China and many other countries around the world. Its flowering period is medium-early, and in years with mild winters and in areas prone to late frosts, the flowers are susceptible to frost damage, though the early bud stage has some frost resistance. It enters the fruiting stage 2-3 years after planting, with stable and high yields. The nuts are large and uniform, with an average single nut weight of 1.3 g-1.5 g. The kernel is smooth, uniform, and attractive in appearance, light brown in color, with a shell as thin as paper (kernel yield 60%-70%). The nuts mature early, generally in late August and September
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Detailed Explanation of Knowledge About Third-Grade Improved Varieties of Kernel Apricots
1. Yiwofeng Yiwofeng, also known as Cibian and Xiaolongwangmao, is one of the main cultivars in Hebei. The fruit is oval, slightly more rounded than Longwangmao, with a single fruit weight of 8.5-11.0 grams and a maximum of 15 grams. The skin is yellow, and when fully ripe it splits along the suture, freestone. Single kernel weight is 1.6-1.9 grams, and the kernel yield rate is 18.5%-20.5%. Kernel weight is 0.52-0.62 grams, kernel extraction rate is 38.2%, the kernel flesh is milky white, and the taste is sweet and fragrant. Extremely high-yielding, but not resistant to late frost. 2. Sanganqi (provisional name) Sanganqi is from He
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Introduction to the Characteristics and Cultivation Techniques of Laiwu Sliced Ginger Varieties
An excellent variety from Laiwu City, Shandong Province. It has strong growth vigor, generally 70-80 cm tall, with taller plants reaching over 1 m. The leaves are emerald green, and it has strong branching ability; usually each plant has 10-15 branches, and vigorous ones can have over 20. The rhizome has yellow skin and flesh, with relatively numerous ginger balls arranged tightly; the ginger balls have many nodes and short internodes, and the upper 5 scales are pale red. The rhizome flesh is tender, with a strong pungent aroma and excellent quality; it is tolerant and suitable for transport. Generally a single rhizome weighs 200-400 g, and heavy ones can reach about 750 g. Cultivated in the ginger regions of Shandong, sown in early May and harvested in mid-to-late October, generally yielding 2000-2500 kg per 57 sq m, with high yields reaching 3000-4000 kg.
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Introduction to Specialty Rice Varieties: Getting to Know Common Types of Specialty Rice
In recent years, the Department of Agronomy at South China Agricultural University has bred several specialty rice varieties, mainly including fragrant rice, fragrant black rice, red zhan rice and others. Their varietal characteristics and key cultivation points are briefly introduced as follows: 1. Wanxianxiangzhan No. 1: Wanxianxiangzhan is a variety bred by crossing Wanlixiang with Jingxian 89, and is an early-season, medium-maturity, high-quality fragrant rice. When planted in the Guangzhou area in the early season, the whole growth period is about 125 days, plant height is 90 cm, plant type is moderately compact and spreading, tillering ability is medium, each panicle has 150-200 grains, it has a certain fragrance, good eating quality, and good late-stage ripening color.
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