NANTONG JIHE RICE INDUSTRY LIMITED LIABILITY COMPANY
发明人:
LIU, Changming,刘昌明
申请号：
CNCN2017/094616
公开号：
WO2018/166135A1
申请日:
2017.07.27
申请国别(地区):
WO
年份:
2018
代理人:
摘要：
The invention discloses a rice emasculation and hybrid seed production method which comprises the following steps: (1) selecting a seed production base, namely selecting a field with excellent light and heat conditions, high soil fertility, flat terrain and zero soil-borne disease as a seed production field, wherein other crops are not interplanted in the seed production base, and the planting distance with other varieties of rice is over 50m (2) performing male and female parent field arrangement, wherein the male parent and female parent are arranged according to 1:3 to 1:5, and the male parent is planted at one end of the female parent area (3) regulating the flowering phases of the female parent and the male parent, sowing at different stages, and applying nitrogen fertilizers, so that the flowering phases of the female parent and the male parent meet each other (4) emasculating, namely removing male flowers at 9-10a.m. every day by tweezers before anthers of male flowers open after the female parent opens, strongly shaking the female parent branches for 7-8 times to enable the anther to drift away, and completely removing the male flowers and the flower buds after the flowers of the female parent are completely bloomed and a second batch of male flowers bloom and (5) pollinating, which is performed at 3-5p.m. on the same day.Linvention concerne un procédé démasculation de riz et de production de grains hybrides dont les étapes consistent : (1) à sélectionner une base de production de grains, cest-à-dire à sélectionner un champ dont les conditions de lumière et de chaleur sont excellentes, dont la fertilité du sol est élevée, dont le terrain est plat et qui comporte zéro maladie portée par le sol, en tant que champ de production de grain, dautres cultures nétant pas intercalées dans la base de production de grain, et la distance de plantation par rapport à dautres variétés de riz étant supérieure à 50 m (2) à procéder à un agencement de champ parent mâle et fem
