Method for rapidly evaluating hybrid rice variety in field

A hybrid rice and evaluation method technology, applied in the fields of rice cultivation, horticultural methods, botanical equipment and methods, etc., can solve the problems of high technical difficulty, randomness and uncontrollability, labor and time-consuming, etc. The effect of de-complexity and broad application prospects
CN105850538AInactive Publication Date: 2016-08-17CROP INST SICHUAN PROVINCE ACAD OF AGRI SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CROP INST SICHUAN PROVINCE ACAD OF AGRI SCI
Publication Date
2016-08-17
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method for rapidly evaluating a hybrid rice variety in a field, comprising the following steps: S1, dividing field performance and comprehensive agronomic traits of a hybrid rice variety and a hybrid combination into productivity, growing situation feature, maturing performance and grain shape and phase; setting relative weight of each trait; S2, rating the traits for rice collected from a field, including: S21, selecting a control variety; and S22, with the control variety as a reference, comparing and scoring the collected rice and the control variety, a score for the rice better than the control variety in traits being higher than a medium level and otherwise being lower than the medium level; S3, calculating a comprehensive score according to the set weights and the scores. The field evaluation and breeding for hybrid rice varieties and hybrid combinations is more technical, field screening for variety and hybrid combination breeding is never complex, random or uncontrollable, and the method belongs to a great modification on the breeding of hybrid rice varieties and hybrid combinations and has a promising application prospect.
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Description

technical field

[0001] The invention belongs to the field of hybrid rice utilization, and in particular relates to a field rapid evaluation method for hybrid rice varieties. Background technique

[0002] Although China is world-leading in the selection and utilization of hybrid rice, the selection of traditional hybrid rice varieties and hybrid combinations is a breeding model based on the individual experience of the breeder. Field and indoor screening, especially in the field selection, the breeder completely relies on his own senses to observe and distinguish the selected object again and again, and finally determine the selected object. Measure again (plant height, ear length, grain shape), and weigh (yield, grain weight). This is what breeders often say, "weighing one stalk by one ruler, plus careful identification in the field".

[0003] Specific technical defects of the prior art:

[0004] 1. The breeding of hybrid rice varieties and hybrid combinations currently i...

Claims

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