1, vigorous growth: stout stalks, broad and thick leaves, leaf color green, tillering and regeneration ability, low temperature resistance in the seedling period, drought resistance and resistance to collapse. 2, developed root system: strong root system, deeper rooting, absorption capacity, the aboveground part and the underground part of the growth can be coordinated. 3, spikes of large grains: the number of spikes of conventional rice more than the number of grains of 80 grains or so, hybrid rice for the 150 grain. 4, widely adapted: in the Yangtze River Basin rice area, South China can be used as a double-season rice planting.

First, the characteristics of hybrid rice

1, vigorous

(1) plant stalks are thicker, broader and thicker leaves, leaf color green, more nutrients manufactured.

(2) Stronger tillering and regeneration, lower photorespiration, less consumption of nutrients.

(3) low temperature resistance in the seedling stage, tillering early and fast, conducive to cultivating strong seedlings with multiple tillers; drought resistance and resistance to collapse, no early failure.

2. Developed root system

(1) Strong root system, deeper rooting, wider distribution in the soil, strong absorption capacity.

(2) The aboveground and underground parts can coordinate the growth, accumulation and operation of nutrients.

3, spikes large grains

The number of solid grains per spike of conventional rice is mostly about 80 grains, and hybrid rice can reach about 150 grains.

4, wide adaptability

(1) the Yangtze River basin rice area, hybrid rice can be planted as a middle rice, double-season late rice.

(2) South China, can be planted as double-season hybrid rice.

(3) Hybrid rice planted in mountainous areas, hilly areas, plains, or planted in thin fields, fat fields, shallow mud-footed fields, deep mud-footed fields, can generally achieve increased yields.

4, good rice quality

Hybrid rice has a high rate of brown rice, the protein content of rice grains is 9.5-10.5%, the fat content of 2.6-2.8, respectively, 1-2%, 0.5% higher than conventional rice.

Second, the shortcomings of hybrid rice

1, shortcomings

(1) taste is generally slightly worse than conventional rice.

(2) The demand for fertilizer is more than conventional rice.

(3) It is impossible to save seeds after harvesting and you have to buy seeds again every year.

2. Advantages

(1) The rice spike is large and has many grains, and the unit yield is about 20% higher than that of conventional rice.

(2) Stronger tillering power, resistance to adversity and disease resistance.

(3) More root system, water and fertilizer absorption capacity than conventional rice.

(4) Strong adaptability, can be planted in most areas.