糖高梁籽粒产量和茎内含糖量是一对相互制约又相互促进的矛盾。六年试验结果表明,籽粒产量〈y〉与茎内含糖量〈x〉呈显著负相关。(r=-0.5088)得到回归方程(?)=981.25—38.05x。试验结果指出,在茎内含糖量较高的(Bx 18—20)品种中能够选择出籽粒产量较高的品种。六十年代以来,世界五大作物之一——高梁的改良〈籽粒品质和茎杆〉和利用在工农业生产上的重要性日益受到人们重视。尤其是苏联和美国,早在卅年代就利用甜高梁茎杆每年生产出十六万吨左右的糖浆用于食品工业,美国又在1964年,分析研究了糖高梁汁液的化学成份,并制定了生产砂糖的工艺。到七十年代末又指出“高梁是一种高能量作物”,它能为人类提供更多的精、燃料、纤维。并且还指出在世界上要扩大高梁的种植面积。我国高梁改良〈茎杆〉利用的研究工作是从1969年开始,到1976年经历近10年的艰苦工作,终于利用高梁和甘蔗远缘杂交并经过多代筛选而得到一批高梁蔗新品(系)种,结合引进国外和国内的甜高梁共24个品种(系)(包括杂交种),在我国廿多个省市,二百多个地、社,县农业科研单位进行了为期6年的种植试验。其中中原地区种植较广,局都部已面积种植。虽然改良的高梁具有一定的优点,但其籽粒产量始终低于粒用高梁(杂交种)。那么,怎样才能使得籽粒产量达到或超过粒用高梁。这就首先需要了解籽粒产量与茎内糖份含量的关系,指导其高产高糖优良品种的选育。从1974年以来,我们较系统地研究分析了此方面的工作,现将几年来的部分试验数据整理如下。 Sugar Sorghum grain yield and stem sugar content is a pair of mutual restraint and mutual promotion of contradictions. The results of six years showed that there was a significant negative correlation between grain yield and stem sugar content . (r = -0.5088) to get the regression equation (?) = 981.25-38.05x. The results showed that the varieties with higher grain yield could be selected among the (Bx 18-20) cultivars with higher sugar content in stems. Since the 1960s, one of the five major crops in the world, the improvement of sorghum , and its importance in industrial and agricultural production has drawn increasing attention. In the Soviet Union and the United States in particular, as many as 160,000 tons of syrup were produced annually in the food industry by the use of sweet sorghum stalks in the early 1980s. In 1964, the United States analyzed the chemical composition of the sugar sorghum juice and developed Production of sugar technology. By the late 1970s, it was pointed out that “sorghum is a high-energy crop” that provides more refined, fuel, and fiber to humans. And also pointed out that in the world to expand sorghum acreage. The research on the utilization of sorghum improved in China began in 1969 and went through nearly 10 years of hard work in 1976. Finally, a series of new sorghum cakes were obtained through distant hybridization of sorghum and sugarcane ), A total of 24 varieties (lines) of sweet sorghum (including hybrids) imported from abroad and domestically were cultivated for 6 years in more than 20 provinces, cities, prefectures and counties Planting test. Among them, the Central Plains region has been planted a wider area and the Ministry of Education has planted an area. Although the improved sorghum has some advantages, its grain yield is always lower than that of sorghum (hybrid). So how can the grain yield be achieved or exceeded for the sorghum? This first of all need to understand the relationship between grain yield and sugar content in the stem, to guide the selection of high yield and high sugar varieties. Since 1974, we have systematically studied and analyzed the work in this area. Now we have compiled some of the experimental data in the past few years as follows.