What are the early maturing varieties of rice? What are the varieties of early maturing rice

Conventional rice varieties include: Zhongzao 39, Jinzao 09, Jinzao 47 and so on.

Please see below for a detailed introduction.

1. Early 39.

Crop name: early rice.

Characteristics: This variety is medium-ripening and early indica, with a full growth period. The plant height is moderate, the stalk is thick, the leaves are straight, and the grains are dense.

The grains are short and round, and there is no mangin at the tip. Resistant to rice blast and highly susceptible to white leaf blight. The grains are round and have a high amylose content, which is suitable for processing grains.

Key points of cultivation technology: do a good job of seed disinfection to prevent seedling disease.

2, Jin Zao 09.

Crop name: Early Indica.

Characteristics: This variety is medium-ripe to early indica, and the whole growth period is days. The plant type is compact, the stem is stout, the tillering power is medium to weak, the effective spike per mu is 10,000, the spike rate, the plant height is 92 cm, the seed setting rate, and the weight of 1000 grains. Resistant to rice blast, moderately susceptible to white leaf blight.

Key points of cultivation technology: do a good job of seed soaking and disinfection before sowing; Due to the medium to weak tillering power, it is necessary to appropriately increase the planting density and increase the basic seedlings.

3, Jin Zao 47.

Crop name: early rice.

Characteristics: This variety is a late-maturing and early indica, with a full growth period. The plant height is moderate, the stalk is stout, the fertilizer is resistant to lodging, the spike is large and the grain is many, and the ripening color is good in the later stage.

Resistant to rice blast, medium resistant to fine stripe disease, susceptible to white leaf blight, brown rice lice and white-backed rice lice. The amylose and protein content is high, the grain is round, and the rice yield is high, which is suitable for processing red yeast rice, dried powder, monosodium glutamate and other products, as well as storage and feed grains.

Cultivation Technique Essentials:

Sowing at the end of the month and early April, the amount of seeds per mu in the field is about 4 kg, and the seedling age is 25 30 days.

2. More than 20,000 bushes per mu, 6 7 per bush, and 12 150,000 seedlings per mu.

3. Apply sufficient basal fertilizer and apply tillering fertilizer early to promote early onset.

4. In the later stage, irrigation should alternate between dry and wet to promote the filling of grains at the base of the panicle.

5. The seedling stage is more susceptible to infection with seedling disease, and the seeds must be soaked and disinfected.

6. Pay attention to the prevention and control of pests and diseases such as white leaf blight and brown rice lice.

Here are some of the early maturing varieties of rice:

Xiangzao Indica 45: A conventional medium-ripening early indica rice selected and bred by Yiyang, Hunan Province, with a full growth period of about 106 days. It is a variety suitable for direct seeding planting with the characteristics of strong lodging resistance, excellent rice quality and high yield.

Zhongjiazao 17: It is a special conventional early rice variety with moderate plant shape and medium tillering, which is suitable for transplanting, direct seeding, machine transplanting and other cultivation methods. It has the quality of "two highs and one long", that is, the whole rice rate is high, the amylose content is high, and the gel consistency is long, which is an ideal variety for rice flour and monosodium glutamate processing and storage.

Xiangzao 6: early-maturing and high-yield rice, mainly bred by crossing Liantangzao and Xiangxiaozao 9, which is suitable for planting in double-cropping rice areas. This variety is resistant to rice blast and white leaf blight, and its growth cycle is about one day, and it is suitable for growing in sandy loam soils rich in humus.

Longjing 28: a high-yielding and early-maturing japonica rice variety with a growth cycle of about 135 days, an ear length of about 18 cm, and a grain count of about 88 grains per panicle.

Zhejiang Spoke 802: The whole growth period is 108 days, the maturity period is early, the plant type is loose, and the tillering ability is weak. The effective spike is 280,000 mu, the spike length is 18 cm, the number of grains per spike is 80, and the weight of 1000 grains is 24 grams.

The resistance is good, and the general yield per mu is 400-450 kg, and the maximum can reach more than 600 kg.

Middle and early 39: the stalk is stout, the leaves are straight, the panicle layer is neat, the grain is dense, and the plant height is moderate. The average growth period was 293 days longer than that of the control variety.

Taoxiu beautiful Zhen: It has outstanding advantages such as early maturity, high quality, strong fragrance, dwarf stalk resistance and high yield. In Hunan, Jiangxi and other areas of the middle and lower reaches of the Yangtze River, the whole growth period of double cropping late rice planting was 112 days.

The above is an introduction to some early-maturing varieties of rice, each variety has its own characteristics and applicable environment, and growers should choose the appropriate varieties for planting according to their actual conditions.

The early rice varieties with early maturing and high yield are:

Shen Dao forty-seven

Longjing twenty-eight

Yong Indica. Ten. Fifth, Hunan morning No. 6

Zhongjia early 17.

The fundamental difference between early, middle and late rice is the difference in response to light, not the variety.

Early and middle rice are not sensitive to light and can mature normally in all seasons of the year, while late rice is very sensitive to short day, and it is strictly required to pass the light stage and set fruit under short day conditions.

Late rice is very similar to wild rice, which is the basic type formed by the direct evolution of wild rice, and early and middle rice are variants formed by the differentiation of late rice under different temperature and light conditions. The rice in the northern rice region belongs to early or medium rice.

Different regions have different early-maturing varieties.

Depending on which region you are in, different regions have different early-maturing varieties.

1. Huhan No. 15 - Fengbao.

Huhan No. 15 is a kind of upland rice, which is very drought resistant, and is suitable for planting in Anhui, Zhejiang, Hunan and other hilly areas with light drought. Its planting and growth period is about 122 days, and the seedling stage of Huhan 15 is relatively vigorous, and the growth period is relatively neat and straight.

Before planting, weeds should be removed, seeds should be disinfected, and the planting time spacing should be kept at about 17 cm and the row spacing should be kept at about 27 cm. Fengbao's requirements for base fertilizer are relatively high, and the base fertilizer basically accounts for 80% of the total fertilizer application. Fengbao's test yield is about 550 kg per mu, and the yield is relatively good.

2. Daejeon performance 9-Kim Jiuchang.

Jin Jiuchang is a rice variety with fast seedling, high survival rate, strong cold tolerance and disease resistance. This variety of rice has a general need for fertilizer, and nitrogen fertilizer should not be applied too much.

It takes about 120-135 days for this kind of rice to be transplanted to maturity, and the yield per mu is about 500-580 kg, and sometimes it can reach about 600 kg when cultivated with high yield, and the yield is very impressive.

3. Nongfeng You 909-Quanyin.

Nongfengyou 909 is a hybrid early maturing late indica new variety, planting growth period of about 102-122 days, its growth is relatively lush, the stem diameter is also relatively stout, the fertilizer of the variety is basically based on base fertilizer and organic fertilizer, during the planting period to pay attention to pest and disease prevention, timely prevention and control of borer, rice planthopper and white leaf blight.

4. Liaojing 390-East Asia.

Liaojing 390 is a hybrid rice variety with a growth period of about 145-155 days, which is a medium-ripening variety, suitable for planting in the medium-ripening rice area in the north of Shenyang, and it has the ability to resist panicle neck blast. When planting Liaojing varieties is about May transplanting, according to the calculation of one mu and one mu, about 55-65 kg of nitrogen fertilizer per mu, about 18 kg of potassium fertilizer, and about 15 kg of phosphate fertilizer.

The planting of this variety of rice should adopt water-saving irrigation technology, intermittent irrigation should be carried out according to the difference of dry, shallow and wet, and attention should be paid to preventing two borers during the planting period. The yield in the experimental area is about 650-850 kg per mu, which is a relatively high-yield variety.

5. Nanjing 9108

Characteristics: This variety belongs to a new variety of high-quality edible japonica rice, which is late-maturing, high-yielding, stable-yielding and high-quality.