Guyou 14 (Rice)
Since Yuan Longping, the father of hybrid rice, bred hybrid rice in the 1970s, the whole world has experienced the second green revolution. However, hybrid rice seed production procedures are complicated, and the price is high, and there are many fake seeds in the market. How to breed apomictic rice for generations has become the dream of many breeders. Now, the apomictic rice bred by Chen Jiansan, a famous breeder of the Chinese Academy of Agricultural Sciences, and other experts has realized this wish. The most important characteristics of apomictic rice are that it does not need seed production every year, but also has great breakthroughs in rice quality, yield and resistance. Guyou 14 and Hongbao 3 introduced in this paper belong to apomictic rice.
This variety was bred by Chen Jiansan and Hubei Rao Shuijia. According to the author's cultivation experiment of wheat stubble rice in 2000, the characteristics of this variety are summarized as follows: plant height is about 105 cm, plant type is compact, stem is thicker, lodging resistance is strong, flag leaf length is about 38 cm. Width 2.10 cm, leaf lift not draped, good posture by light. The panicle is big and has many grains, about 350 grains, few spikelets less than 200 grains, the main panicle is big and has more than 400 grains, more than one foot long, the maximum panicle length is 43 boxes of rice, and the grain is more than 500 grains. The grain is golden yellow, 1000-grain weight is 23 grams, the seed setting rate is more than 90%, the rough processed rice grain is cylindrical, white and white, the appearance of the rice grain is crystal like jade, the rice is soft and elastic, and it is a high-quality rice variety. The variety showed high resistance to rice blast and sheath blight, and moderate resistance to bacterial blight in the field.
Shortcomings and suitable planting areas: Although this variety can surpass hybrid rice in many aspects, the shortcomings of this variety were also found in the test process, such as a small amount of panicle neck blast occurred in rainy weather during heading period, which can be controlled by compound tricyclazole and other chemicals at break stage. Stay farming need to go to impurity purification in time, and singles single harvest and storage alone do not mix artificially, can be used as seed every year. It is suitable for one-season rice planting in Huanghuai River Basin and Yangtze River Basin, and can be used for both early and late seasons in Guangdong, Guangxi, Yunnan and other southern regions.
- Prev
Introduction to the four disadvantages of rice Honda management
The main results are as follows: 1. The soaking time of soil preparation is short, bumpy and enlarged, transplanting seedlings without soaking thoroughly, discharging salt and washing alkali is not thorough, it is easy to produce salt damage, which is disadvantageous to the growth and development of seedlings. 2. This year, there are many windy days, cloudy days and large temperature difference, which leads to the seedlings can not be ventilated normally, which is disadvantageous to slow down the seedlings after planting. 3. People are more afraid of water. Transplanting rice seedlings in deep water and deep water management are disadvantageous to raising ground temperature, taking root early, early seedling emergence and early tillering after transplanting. 4. The water storage in last winter and this spring has poor water quality and heavy soil salinity, which makes the living environment of rice disadvantageous.
- Next
Occurrence and Control of main Rice Diseases and pests in Gejiu City
1. Rice planthopper 1. damage characteristics: Rice planthopper, also known as white mosquito, is a migratory pest with the characteristics of long-distance migration and outbreak. The common ones are gray planthopper and white-backed planthopper. It occurs in the rice area of the city, mainly harming rice, followed by wheat and corn, but also parasitic on grass and other Gramineae weeds. The adults and nymphs clustered to suck the sap on the base and leaves of the rice clump, and the injured part showed a long brown spot. In severe cases, the lower stem blackened and the whole plant withered. 2. Living habits: there are 4 generations in a year, from the end of April to the beginning of May.
Related
- The first cup of black tea in spring, the flavor and history of tea gardens in Kenya, Africa
- The computer can not only choose potatoes, but also grow tea rice. AI will grow winter oolong tea champion.
- It is not only the inflated tea bitten by insects, but also engraved with the four seasons tea in Beipu.
- The Oriental Beauty Tea Festival in Zhuxian County takes the stage at the weekend to experience the plus-size feast of oil tea.
- & quot; Oriental Beauty Tea & Exploration of Emei in Hsinchu, the hometown of quot;
- The new variety of strawberry "Tainong 1" dessert is the first choice with mellow aroma. Crimson gorgeous
- History of Tea in Taiwan: from Wild Inner Mountain to Export Tea Garden
- Two types of Taiwan Oriental Beauty Black Tea won the British three-Star Award for Childhood Tea Xiang Zhang Jiaqi changed from pilot to champion tea maker.
- Banana species and varieties: the planting history of Taiwan Xianren banana and dwarf banana is long, is banana disease resistant?
- Coffee planting Technology: Qianjie Coffee from Seedling to harvesting