High Quality Tianlongyou 1340 Rice Seed

Characteristics:

It is an indica late maturing three line hybrid rice variety, with a total growth period of 135-140 days. The leaves are light green, wide and long, and the number of main stem leaves is 16-17; The plant height is 124.4-133.0cm, the plant is compact, the plant is tall and luxuriant, and the stem is sturdy; The effective spike per mu is 153-16700, the spike length is 24.8-25.5cm, the total grains per spike is 184.0-195.2, the seed setting rate is 78.5-82.3%, and the 1000 grain weight is 28.9-30.1g.

Resistance identification:

In 2012, it was identified by the Plant Protection Institute of Jiangsu Academy of Agricultural Sciences that it was resistant to rice blast and seedling blast; Ear neck blast was identified as medium resistance by artificial test and resistant by field induction test; The representative strains of rice bacterial blight were susceptible to the disease; Sheath blight is susceptible. In 2013, it was identified that it was resistant to rice blast and seedling blast; The ear neck blast was identified as moderately susceptible artificially and moderately resistant in the field; The representative strains of rice bacterial blight Zhe173 were susceptible, PX079 and KS-6-6 were moderately susceptible, and JS-49-6 were moderately resistant; It is resistant to sheath blight.

Quality analysis:

In 2012, it was tested by the Food Quality Supervision, Inspection and Testing Center of the Ministry of Agriculture (Wuhan): the yield of rough rice was 82.5%, the milled rice rate was 72.7%, the head rice rate was 66.3%, the grain length was 6.1mm, the length width ratio was 2.3, the chalky grain rate was 68%, the chalkiness was 10.9%, the amylose was 22.8%, the gel consistency was 35mm, the alkali dissipation value was 3.5, and the transparency was 2; In 2013, it was tested that the roughness rate was 81.6%, the milled rice rate was 70.1%, the head rice rate was 52.4%, the grain length was 6.4mm, the length width ratio was 2.4, the chalky grain rate was 80%, the chalkiness was 12.0%, the amylose was 22.3%, the gel consistency was 40mm, the alkali dissipation value was Grade 4, and the transparency was Grade 3.

Output performance:

In 2012, in the regional test of indica rice varieties in southern Henan, the average yield per mu increased by 6.0% compared with the control Ⅱ You 838, which was very significant; In 2013, the average yield per mu increased by 7.8% compared with the control Ⅱ You 838, which was very significant. In the production test of indica rice varieties in southern Henan in 2014, the average yield per mu increased by 7.0% compared with the control IIyou 838.

Key points of cultivation technology:

1. Sowing date and amount: It is appropriate to sow from the end of April to the beginning of May. The sowing amount per mu of seedling field is 10kg. Use paclobutrazol to cultivate strong tiller seedlings. Soak Seeds for 5-10 minutes at 2g per mu (15% water). Sow after drying. The seedling age should be controlled within 30 days.

2. Planting method: wide row and narrow spacing 6 × It is better to be 8 inches in length to ensure the ear rate and effective large ears. One or two grain seedlings are planted in each hole to ensure 150000 to 160000 ears per mu.

3. Field management: fertilizer application principles: nitrogen, phosphorus and potassium should be used together, base fertilizer should be applied heavily, tillering fertilizer should be applied early, ear fertilizer should be given consideration, and potassium fertilizer should be applied more in the middle and late stages; In general, 25kg compound fertilizer+0.5kg zinc fertilizer is used as base fertilizer per mu, and 10kg urea is used as tillering fertilizer; The principle of water management: planting seedlings in shallow water, living trees in inch water, tillering in thin water, booting in deep water, raising flowers, drying and wetting in the later stage, and never cutting off water too early to avoid affecting the seed setting rate and fullness; Pay attention to strengthening the prevention and control of rice bacterial leaf blight, and pay attention to the prevention and control of borers, rice planthoppers and rice false smut.