Quality Analysis And Improving In Early Season Indica Glutinous Rice For Wine

Breeding and exploiting the better early season indica glutinous rice for wine usage is beneficial for enhancing the added values of rice grain and it's product, stabilizing areas of early season rice, increasing income of farmers. The early season indica glutinous rice can also expand the sources of rice for wine usage, reduce the production cost and develop continuously industrial of Shaoxing rice wine. The purpose of the study is to analyze the difference among early season indica glutinous rice varieties, which bred by Shaoxing Academy of Agricultural Sciences, and found the best varieties in quality for making better wine. According to the characters of breeding, some methods have been proposed for improving the quality and industrialization of early season indica glutinous rice. The result as follows:1. Among early season indica glutinous rice varieties for wine usage, few varieties could reache the third class standard of rice quality traits including percentage of head milled rice, gelatinization temperature (GT), amylose content (AC) and gel consistency (GC). Among these quality traits, the significat problems were lower head milled rice, and higher GT or AC.2. The index of brewing for wine now has met with the national standard through improving technique of vintage, and the flavor of wine made by using the early season indica glutinous rice was closed to that by using the late season japonica glutinous rice. The results of brewing for wine showed that the quality of wine was significantly different among the rice varieties. The early season indica glutinous rice varieties, which has little amylose content (1.0~1.5%), harder rice grain, higher percentage of head milled rice (about 60%), larger GT (6.0 class), longer GC (95~100mm), medium protein content, usually have better character for wine usage. The milled degree of rice was not strict for wine brewing. In general, it is suitable for wine brewing to use the better early season indica glutinous rice varieties with a longer and rounder shape.3. According to the ecological condition of agriculture, system of cultivation, demands of production in Shaoxing, the breeding goal was to breed the better early season indica glutinous rice varieties with good quality, high yield and resistance. In the process of breeding, it is better to work out a clearly breeding goal, collect, appraise and use the germplasm of rice, utilize the different kinds of hybridization and/or backcross methods, judge the glutinous of single plant in early generations, and do the selection of quality in later generations.4. The four different ways such as developing the special form of economy cooperation for rice commerce were proposed for solving the questions faced in exploiting the early season indica glutinous rice.