Breeding and seed production method of high-quality, multi-resistant and high-yield three-line hybrid rice Zhenxianyou 146
A three-line hybrid rice, high-quality technology, applied in the field of hybrid rice breeding and seed production, can solve the problems of no breakthrough in yield potential, no resistance to bacterial blight and rice blast, and no major improvement in rice quality. , to achieve the effect of strong tillering power, good firmness and moderate maturity.
Inactive Publication Date: 2013-12-11
ZHENJIANG AGRI SCI INST JIANGSU HILLY AREAS
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Problems solved by technology
[0003] With the increase of population and the decrease of land, the food problem is still a social problem that cannot be ignored. In the past ten years, the breeding of hybrid rice in my country has progressed rapidly, and a large number of new hybrid rice varieties have been bred and widely used in production. There is no major improvement, no resistance to bacterial blight and rice blast, no breakthrough in yield potential, easy to lodging, and a large distance from the requirements for the development of high-quality, high-yield, and efficient agriculture
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specific Embodiment
[0031] A specific embodiment of the breeding and seed production method of a high-quality, multi-resistant, high-yielding three-line hybrid rice Zhenxianyou 146 of the present invention has the following advantages:
[0032] 1. Good overall high yield and moderate ripening period
[0033] Zhenxianyou 146 has strong tillering ability, high panicle formation rate, large number of panicles, medium panicle type, and good firmness. Generally, the effective panicle per mu is 170,000 to 190,000, the panicle length is about 25 cm, and the total number of grains per panicle is more than 145. The seed setting rate is above 85%, and the thousand-grain weight is about 28.5 grams. It has shown a high yield level and yield increase potential in the intermediate test and demonstration trial planting. The general yield is more than 650kg per mu, which is about 10% higher than that of II You 084. The whole growth period is about 143 days, which is equivalent to II You 084.
[0034] 2. Good qu...
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The invention discloses a breeding and seed production method of high-quality, multi-resistant and high-yield three-line hybrid rice Zhenxianyou 146. According to the method, high-quality, rice blast-resistant, high-combining ability sterile line Zhenxian 1A is taken as female parents; the female parents are hybrid with high-quality, bacterial blight-resistant, strong excellent restoring line Zhenhui 46, so that high-quality, high rice blast and bacterial blight-resistant, high-yield hybrid rice Zhenxianyou 146 is obtained. The method provided by the invention has the advantages that the rice variety bred through the method provided by the invention has excellent comprehensive yielding capability, a moderate mature period, excellent quality, excellent commodity, and strong stress resistance.
Description
technical field [0001] The invention relates to a hybrid rice breeding and seed production method, in particular to a high-quality, multi-resistant, high-yield three-line hybrid rice Zhenxianyou 146 breeding and seed production method. Background technique [0002] Rice is the largest crop in my country. Hybrid indica rice has high yield, wide adaptability, and is easy to cultivate. The planting area accounts for 50% of the total rice area in the country, and the output accounts for 60% of the total rice output. It has made a great contribution to my country's grain production. The improvement of hybrid rice varieties has always been the key field of agricultural research in my country. High quality, multiple resistance and high yield are the long-term goals of hybrid rice breeding in my country. [0003] With the increase of population and the decrease of land, the food problem is still a social problem that cannot be ignored. In the past ten years, the breeding of hybrid r...
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IPC IPC(8): A01H1/02
Inventor 龚红兵李闯曾生元周义文盛生兰林添资景德道钱华飞余波
Owner ZHENJIANG AGRI SCI INST JIANGSU HILLY AREAS