Characteristics of high-yield corn varieties

1, the root system developed. In particular, some of the above-ground root systems (airborne roots) must be developed, with a large number of rounds, and a large number in each round to prevent lodging. At the same time increase the absorption of surface nutrients. The number of root hairs around the apical part of the root part of the root system is increased to increase the absorption area.

2, plant type convergence. The angle between the leaves and the upper leaves of the ear should be less than 22 degrees, and it should be highly dense.

3, more leaf hairs, waxy layer thickness, strong light absorption ability, good water retention, drought resistance.

4. The spacing between the upper leaves of the panicles is large without mutual shading and the photosynthetic rate is high.

5. The internodes in the lower part of the stem are short, the cellulose content in the base of the stem is high, and the stem is elastic and not brittle.

6, less tassel branching and spikelets, reduce nutrient consumption, less shading, do not breed pathogens.

7, male and female development coordination. Spitting was promptly done within 3 days after the birth. Prevent tipping.

8, good ear yield traits. 100-grain weight is high, above 38 grams; the number of rows is more than 16 rows.

9, good resistance, strong adaptability. High resistance to head smut and smut. Resistance to spot, stem rot and ear rot. Insensitive to the environment, resistance to thin, low temperature, drought resistance, not sharp, not empty rod.

10, keep green well. In the late growth period (after September 5), the leaf area index was above 3.2 and there were more than 6-8 green leaves.

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