水稻生育期特点（Characteristics of rice growth period）.docVIP

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水稻生育期特点（Characteristics of rice growth period）.doc

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水稻生育期特点（Characteristics of rice growth period）

水稻生育期特点（Characteristics of rice growth period） The characteristics of rice growth stages at the same time? Questioner: 2011-07-12 10:09 national wealth 2 people | Views: 5800 Let me help him with that Recommended answer 2011-07-12 11:59 Mo Mo Yan | five 1 rice varieties in paddy rices life, including two stages of vegetative and reproductive growth, generally in panicle differentiation marker as reproductive growth began to start. 1.1. Vegetative growth stage is the growth of rice vegetative body, which is divided into seedling stage and tillering stage. The production is divided into seedling stage and (the) Tian (from transplanting to jointing green). 1.2, the reproductive growth stage is fructification growth from panicle differentiation to flowering and fruiting, and divided into long spike period and flowering period. The differentiation of young panicle to heading stage is the period of vegetative growth and reproductive growth, and the stage of reproduction is basically reproductive growth. In the long panicle stage, from the young panicle differentiation to the heading stage, it takes about 30 days. The seed setting varies from heading to flowering to grain maturity, and varies between climate and variety, usually between 50 days. 1.3, the growth of rice types (the relationship between panicle differentiation and jointing), early and late rice varieties in different rice varieties before panicle differentiation after jointing stage, the overlapping growth types; rice varieties, jointing and panicle differentiation at the same time, said the family cohesion; rice varieties after jointing stage from time to time of spike differentiation say, family type separation. 2, the stability and variability of growth period of rice varieties, the growth period of rice varieties is controlled by their own genetic characteristics, and also affected by environmental conditions. The stability of 2.1, growth period of rice varieties of the same species in the same area. The