Is Dongdan 509 corn resistant to lodging? (Field performance of Dongdan 509 corn seeds)

Is Dongdan 509 corn resistant to lodging?

Dongdan 509 is a corn variety selected and bred by Liaoning Dongya Seed Co., Ltd. It was approved by the Second Meeting of the Tenth Session of Liaoning Province in 2019, and its approval number is Liaoshenyu 20196001

Moreover, Dongdan 509 corn has a certain resistance to lodging. Dongdan 509 corn performs very well in the field, with large cobs, no lodging, and strong disease resistance. It has been identified as resistant to large leaf spot, moderately resistant to gray leaf spot, resistant to ear rot, resistant to stem rot, and resistant to head smut.

Introduction to Dongdan 509 corn variety

The Dongdan 509 corn seedlings matured in 130.4 days, one day earlier than the control Xianyu 335. The seedlings have purple sheaths, green leaves, green leaf margins, yellow anthers, and green husks. The plant is semi-compact, with a plant height of 287 cm, an ear height of 112 cm, and 22 leaves on mature plants.

The fruit ears of Dongdan 509 are cylindrical, 19.3 cm long, with 16-18 rows, 5 cm thick, red cob, yellow grains with horse teeth, and 100-grain weight of 40.1 grams.

Inoculation identification : Moderately resistant to stem rot and ear rot, susceptible to southern rust and southern leaf spot, highly susceptible to Curvularia leaf spot and smut.

Component determination : grain bulk density 751 g/L, crude protein content 10.03%, crude fat content 3.62%, crude starch content 73.28%, lysine content 0.33%.

Is the output of Dongdan 509 high?

Dongdan 509 mu has a very high yield and is suitable for planting in Inner Mongolia, Shaanxi, Ningxia, Gansu, Xinjiang and other regions. However, it has high requirements for soil and is suitable for planting in fertile medium-sized plots.

In 2017, the average yield per mu of the mid-ripe group regional trial was 843.4 kg, 5.1% higher than the control Xianyu 335. In 2018, the average yield per mu of the retest was 772.8 kg , 7.3% higher than the control Xianyu 335.

In 2018, the same group of production trials took place, with an average yield of 793.7 kg per mu , an increase of 6.3% over the control Xianyu 335.