Zhonglian You 589

Morphological characteristics: moderate plant type, strong growth potential, neatness of the plant, erect leaf posture, green leaf sheath, yellow palea stalk, no awn, undergrass, good late color decay.

 

Yield traits: In 2013, the average yield per mu in the provincial and regional trials was 574.94kg, ranking first in this group, an increase of 7.7% compared to the control, and the rate of increase in yield was 100%, which was extremely significant. The daily output is 4.23kg, which is 3.68% higher than the control. The growth period was 135.8 days, which was 5.1 days longer than the control. In 2014, the average yield per mu in the provincial and regional trials was 578.9kg, ranking fourth in this group, with an increase of 5.1% compared with the control, and the rate of increase in yield was 86%, which was extremely significant. The daily output is 4.06kg, which is 0.50% higher than the control. The growth period was 142.7 days, which was 6.4 days longer than the control. The average yield per mu in the two-year regional test was 576.92 kg, which was 6.40% higher than the control. The rate of increase in yield was 93%. The daily output was 4.15 kg, which was 2.09% higher than the control.

 

Agronomic traits: The growth period is 139.3 days, which is 5.8 days longer than the control. The plant height is 114.45cm, the total number of grains per panicle is 176.49, the number of real grains is 143.27, the seed setting rate is 81.56%, and the thousand-grain weight is 27.80 grams.

 

Quality traits: 2014 provincial and regional test uniform sampling identification: roughness rate 81.3%, polished rice rate 73.0%, whole polished rice rate 59.7%, grain length 7.2mm, grain shape aspect ratio 3.4, chalky grain ratio 30%, chalky Degree 4.2%, transparency level 1, alkali elimination value 4.0, gel consistency 50mm, amylose 20.7%, moisture 11.6%. Reached Level 3 of the National Quality Rice Standard.

 

Resistance traits: identification of rice blast resistance in the 2013 provincial and regional test: average 4.67 for seedling leaf blast, average 7.0 for panicle blast, comprehensive resistance index of rice blast 4.43, resistance to bacterial blight 5, resistance to rice smut An average of 5 levels. The identification of resistance to rice blast in provincial and regional trials in 2014: average level of 4.0 for seedling leaf blast, average level of 3.67 for ear blast, comprehensive resistance index of rice blast 2.77, resistance to bacterial blight at level 5, and resistance to smut disease at an average of 8. In the high temperature resistance ability, the high temperature resistance ability, the low temperature resistance ability is weak. Resistance was identified at more than two years: the average level of leaf blast was 4.34, the average level of ear-neck blast was 5.34, and the comprehensive index of rice blast resistance was 3.60. The average resistance to bacterial blight is 5, and the average resistance to rice smut is 6.50.