Black rice, perennial rice, giant rice... How much do you know about wonderful rice?

Yunnan is rich in biodiversity and is China's "plant kingdom"
.
Relying on good resource conditions and with the efforts of many parties, Yunnan has produced a variety of rice such as black rice, perennial rice and giant rice
at different altitudes and in different regions.

After the continuous rainy weather, Jiju Village, Pantiange Township, Weixi Lisu Autonomous County, Yunnan Province, ushered in fine weather, and the head of the village committee and Zhenghua organized the masses to harvest rice
.

"Black rice yields are low, but it tastes good and nutritious
.
" He Zhenghua, 58, said the village's black rice cultivation is more than 2,600 meters above sea level, making it one of
the highest rice cultivation areas in the world.

Black rice is an old local variety, and 937 acres of black rice were planted in the village this year, and it is now in the harvest period
.
He Zhenghua said that the average yield of black rice in Jiju Village is 350 to 400 jin per mu, and the market price of black rice is about 11 yuan
per jin.

In a rice field in Xinping County, Yunnan Province, the team of Professor Hu Fengyi of Yunnan University is observing
the growth of perennial rice.
Water control and fertilization are needed to prepare for
a bumper harvest in the second season of the year.

Perennial rice in the rice field looks like ordinary rice, but it actually has different traits
.
Perennial rice has a more developed root system and stronger
vitality.
After the rice harvest, the regenerated seedlings grow from the axillary buds of the aboveground stems, while the regenerated seedlings of perennial rice are emitted
from the axillary buds of the underground stems.

With the support of Yunnan Science and Technology Program and other projects, Hu Fengyi's team has jointly explored hard to invent a method of cultivating perennial rice using the asexual reproduction characteristics of Changxiong wild rice, established a theoretical system of perennial rice, and is innovating and integrating a high-quality, high-yield and efficient production technology system
of perennial rice.

"This is rice planted in 2016 and has been harvested 13 times
so far.
In simple terms, perennial rice is cut once and grows once
.
Hu Fengyi said that perennial rice only needs to be planted once, and from the second year (season) there is no need to plow and rake, buy seeds, sow seedlings and transplant, as long as the field management can achieve many years of rice production, can be harvested for two consecutive seasons or harvested after wintering for several years
.
At present, the yield of perennial rice in a single season is more than 1,000 kg
per acre.

"Milli Rice" is a traditional high-stalk rice variety in Shafang Town, Mangshi, Yunnan, and is also a representative variety
of "Shafang Gongmi".

According to Sun Quanli, consultant of Dehong Gongmi Group Co.
, Ltd.
, the average "height" of these high-stalk rice is about 2.
4 meters
.

In addition to traditional high-stalk rice varieties, scientists are also actively breeding new varieties
of high-stalk rice.
Before the giant rice harvest, Li Xiaolin, director of the Institute of Food Crops of the Yunnan Academy of Agricultural Sciences, walked into the rice field, observed and sampled the rice roots, and stood next to the rice taller than him to take pictures and save funds
.

The team of the grain crop is conducting experimental planting of six strains of giant rice, with a trial planting area of about 100 acres
.
Li Xiaolin introduced that the giant rice plants of these strains range from 1.
63 meters to 2.
2 meters high, the highest number of ears exceeds 600, the diameter of the stem is about 0.
8 cm, and the highest yield exceeds 830 kg
.

"Yunnan has excellent germplasm resources, and the rice quality of giant rice is also very good
.
" Li Xiaolin said that through conventional breeding methods, they carried out strain trials in different regions of Yunnan to meet the needs of
different ecological climates.
(Editor Li Chuang)