无码少妇一区二区三区免费,妓院一钑片免看黄大片,国语自产视频在线,亚洲AV成人无码国产一区二区,激情久久综合精品久久人妻,日韩免费毛片,综合成人亚洲网友偷自拍,国内自拍视频在线观看,欧美熟妇性xxxx交潮喷,国产成人精品一区二免费网站

Third-generation hybrid rice achieves high yields in China

Source: Xinhua| 2019-10-22 19:22:03|Editor: Xiang Bo
Video PlayerClose

CHANGSHA, Oct. 22 (Xinhua) -- The third-generation hybrid rice developed by Yuan Longping, the "father of hybrid rice," and his team underwent its first public yield monitoring from Monday to Tuesday and achieved a major breakthrough in output.

The final yield came to 1,046.3 kg per mu (about 0.07 hectares), based on two plots of land in Qingzhu Village under the city of Hengyang in central China's Hunan Province.

Experts agreed that the rice has a stout stem, fertilizer tolerance, lodging resistance, large spike and more grains.

"One of the most important characteristics of the third-generation hybrid rice is that it has a shorter growing period," said Qian Qian, deputy director of the China National Rice Research Institute.

Qian said some previous high-yielding hybrid rice varieties in China took 160 to even 180 days from sowing to harvesting, while the figure was shortened to around 125 days for the new variety.

"A shorter growth period can reduce the use of pesticides and fertilizers, save resource costs and improve production efficiency," Qian said.

Unlike the previous two generations of hybrid rice which required a large amount of water and fertilizers as well as demanding growing conditions and technological support, the third-generation hybrid rice is easier to be cultivated by ordinary farmers.

The soil, altitude and climate of the test site were not "ideal conditions" carefully selected beforehand but were close to the paddies of ordinary farmers, according to Zhao Bingran with Hunan hybrid rice research center.

The whole process was organized by the Hunan Society of Agronomy under the supervision of experts from the Chinese Academy of Agricultural Sciences, the China National Rice Research Institute, Hunan's agriculture and rural affairs department and multiple Chinese universities.

Yuan, who developed the world's first hybrid rice in 1974, has set multiple world records in hybrid rice yields in previous years.

TOP STORIES
EDITOR’S CHOICE
MOST VIEWED
EXPLORE XINHUANET
010020070750000000000000011100001384937831
色综合天天综合天天综| 99re热这里只有精品最新| 在线国产视频精品视频| 免费看性视频xnxxcom| 午夜AAAAA级岛国福利在线 | 国产三级精品三级在线看| 日韩伦理片| 久久视频在线视频精品| 久久国产乱子伦视频无卡顿| 免费国产成人高清视频网站| 无码人妻精品一区二区三区夜夜嗨| 在线无码免费的毛片视频| 开心五月婷婷综合网站| 亚洲午夜无码久久久久蜜臀AV| 亚洲香蕉毛片久久网站老妇人| 色欲av永久无码精品无码蜜桃| 亚洲码国产精品高潮在线| 亚洲男人成人性天堂网站| 亚洲国产精品久久一线不卡| 国产精品ⅴ无码大片在线看| 四虎影视4hu4虎成人| 天天摸天天做天天爽视频| 97精品久久九九中文字幕| 久久99热这里只频精品6| 国产高潮视频在线观看| 日韩欧美中文字幕热| 国产av一区二区午夜福利| 丁香五月激情图片| 精品国产电影久久九九| 久热这里只有精品6| 国产精品不卡在线视频| 日韩乱码人妻无码中文字幕视频| 国产成年码av片在线观看| 老少交欧美另类| 中文字幕日韩有码一区| 日韩av爽爽爽久久久久久| 日韩精品一区二区三区视频| 无码片久久久天堂中文字幕| 日本道不卡一二三区视频| 亚洲天堂日韩av在线综合| 国产成人麻豆亚洲综合无码精品|