High quality Tianlongyou 540 rice seed

Characteristics:

The whole growth period of this variety is 149.1 days (153.3 days on average in Hanzhong, Shaanxi), 0.3 days shorter than that of the control Gangyou 725. The plant height is 128.4 cm, the plant type is moderate, the leaf color is dark green, the sword leaf is inclined and slightly involute, and the leaf sheath, ear, stigma and lemma tip are all purple red. The effective spike per mu is 142000, the spike length is 26.7cm, the average grain per spike is 187.7 grains, the seed setting rate is 75.9%, the 1000 grain weight is 28.7g, the short top awn, and the color change is good in the later stage. Quality determination: the brown rice rate is 82.3%, the head rice rate is 60.2%, the chalkiness grain rate is 51%, the chalkiness degree is 8.2%, the gel silk degree is 59mm, and the protein content is 9.9%. Identification of resistance to rice blast: grade 7, 4, 0, 4 of leaf blast and grade 7, 7, 7, 0 of neck blast in 2006; In 2007, the leaf blast was Grade 4, 3, 6 and 3, and the neck blast was Grade 7, 7, 7 and 5.

Output performance:

In 2006, it participated in the second group regional test of medium and high quality indica rice in Sichuan Province, with an average yield of 553.80 kg per mu, 6.21% more than the control Gangyou 725; In 2007, four groups of late maturing medium indica rice continued to test, with an average yield of 567.09 kg per mu, an increase of 7.04% over the control Gangyou 725; The average yield per mu in the two-year regional trial was 560.73 kg, 6.65% more than the control Gangyou 725, and the average yield increase was 96%. In 2009, the average per mu yield of Hanzhong introduced in Shaanxi was 613.9 kg, and the maximum per mu yield (Hanbin) was 671.7 kg.

Key cultivation points:

1. Sowing early at the right time and cultivating strong seedlings at the right age/

2. Reasonable dense planting, planting 12000-15000 holes per mu, planting 2 grain seedlings per hole;

3. Heavy application of base fertilizer, early application of tillering fertilizer, supplementary application of ear fertilizer depending on the seedlings, combined application of N, P and K fertilizers, and avoid excessive nitrogen fertilizer in the middle and late stages;

4. Fine water management, deep water turning green, thin water tillering, enough seedlings to sun the field, water heading, dry and wet strong seeds, yellow and dry;

5. According to the prediction of plant protection, the disease and insect are comprehensively controlled.