What are the common varieties of long-grain rice?

If we only talk about long-grain rice, we can't immediately think of what kind of rice it is. It is also called indica rice. The milled rice is called indica rice, which is widely planted in the south. So what are the common varieties of long-grain rice grown by farmers today? Friends who want to know can look down!

Common varieties of long-grain rice

1. Characteristics of Guiyu 11

Indica conventional rice varieties. The whole growth period of early rice is 119.0 days, and that of late rice is 106.8 days, which is equivalent to that of control Liushayouzhan 202 days. Dark green leaves, green leaf sheaths, erect sword leaves, long panicles, dense grains, pale yellow glumes, colorless apices, no awns. The effective panicle number per mu is 178,000, the plant height is 109.1 cm, the panicle length is 25.7 cm, the total grain number per panicle is 154.6, the seed setting rate is 79.1%, and the 1000-grain weight is 21.9 g. Resistance: comprehensive index of rice blast resistance was 6.3 and 5.8 in two years respectively, panicle blast loss rate was highest grade 7, bacterial blight was grade 5~7, susceptible rice blast, medium susceptible ~ susceptible bacterial blight. Main rice quality indexes: brown rice rate 81.6%, head milled rice rate 67.9%, chalkiness 1.0%, transparency grade 1, alkali elimination value 6.2, gel consistency 74 mm, amylose content 15.0%, reaching NY/T593-2013 "Quality Standard of Edible Rice Varieties" high quality grade 1.

2. Characteristics of Yuzhenxiang varieties

This variety belongs to conventional mid-ripening late indica rice. It is cultivated as double-cropping late rice in our province. The whole growth period is about 114 days. Plant height 119 cm, plant type moderate. Leaf sheath, lemma tip colorless, color drop good. The results of provincial trial showed that there were 281,000 effective panicles per mu, 115.8 grains per panicle, 81.1% seed setting rate and 28.0g 1000-grain weight. Resistance: rice blast resistance comprehensive index 8.2, bacterial blight resistance 7, high susceptibility to rice blast, susceptible to bacterial blight; cold resistance is strong. Rice quality: brown rice rate 80.0%, milled rice rate 65.7%, head milled rice rate 55.8%, grain length 8.8 mm, aspect ratio 4.9, chalky grain rate 3%, chalky degree 0.4%, transparency grade 1, alkali elimination value grade 6, gel consistency 86 mm, amylose content 16.0%. In 2006, it was rated as the first-class high-quality rice variety in the sixth high-quality rice variety selection of Hunan Province.

3. Variety characteristics of Xigong 6

Late-maturing indica conventional high-quality rice. The whole growth period was 161 days, 4 days later than that of the control. Plant height 113.4 cm, plant leaf shape is better, loose moderate, ripe color better. Growth exuberant, luxuriant sex is better, mu effective ear 163 thousand or so. The ears are bigger, the number of grains per ear is 150.4, the seed setting rate is 84.4%, and the 1000-grain weight is 22 g. Grain pale yellow, awnless. The main rice quality indexes were head milled rice rate 66.1%, chalkiness 0.3%, aspect ratio 2.7, gel consistency 68 mm, amylose content 16.8%. In 2005 in Changsha National High-quality Rice Expo was rated as high-quality products.

4. Characteristics of Ezhong 5

Compact plant type, strong tillering ability, weak field growth potential, poor cold resistance. Leaves pale green, sword leaves narrow, long, straight. Panicle type is loose, panicle neck node is short, there is neck wrapping phenomenon; primary branch is longer, secondary branch is less, grain at base of branch is less, grain at upper part is dense, spikelet degeneration phenomenon occurs in case of low temperature at booting stage. In the regional experiment, the effective panicles per mu were 187,000, the plant height was 117.9 cm, the panicle length was 24.5 cm, the total grains per panicle were 140.9, the filled grains were 105.3, the seed setting rate was 74.7%, and the 1000-grain weight was 23.99 g. The whole growth period is 147.9 days, 11.9 days longer than Ⅱ You725. The disease resistance was identified as highly susceptible panicle neck blast.

5. Characteristics of Meixiangzhan No. 2

Temperature-sensitive conventional rice varieties. The average whole growth period of late-season rice was 112~113 days, which was equivalent to Jingxian 89. Good plant type, strong vigor, small grain, strong tillering ability, high seed setting rate, good ripe color, weak cold resistance in late stage. Plant height 90.5~96.6 cm, panicle length 20.6~21.2 cm, effective panicles 21.8~22.1 thousand per mu, total grains per panicle 108~120, seed setting rate 83.9%~87.7%, 1000-grain weight 18.1~18.5 g. The quality of late-cropping rice reached the second grade of national standard and provincial standard, the appearance quality was the first grade of late-cropping special rice, there was aroma, the head rice rate was 63.7%~67%, the chalky grain rate was 8%~20%, the chalky degree was 0.8%~1.4%, the amylose content was 15%~17.6%, the gel consistency was 72~77 mm, the physicochemical score was 63 points, and the eating quality score was 82 points. The frequencies of resistance to rice blast, middle B, middle C and total resistance were 76.5%, 77.8%, 75.7%, respectively. Panicle blast was 6 grade, leaf blast was 4.67 grade, bacterial blight was 5 grade.

6. Characteristics of Yunhui 290

Plant height 95~110 cm, grain slender, slightly top awn, rice milky white. The whole growth period is 160~175 days, the plant type is compact, not premature senescence, lodging resistance, yellowing is good, threshing is easy, rice blast and bacterial blight resistance, rice sheath blight and rice false smut resistance are moderate; Good quality, moist and delicious taste with sweet fragrance, cold does not retrogradation, bright and smooth, brown rice rate 76.05%, polished rice rate 63.16%, head polished rice rate 57.31%, amylose content 18.97%, gel consistency 74.00 mm, gelatinization temperature 7.0, crude protein content 8.46%, total starch content 79.42%, chalky area 0.

In the above small series to introduce you to six more common long-grain rice varieties, they each have their own characteristics, do not know which varieties of rice you think delicious? If you still want to know more about rice, you can continue to pay attention to our agricultural news network!

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