论文部分内容阅读
种植向日葵的时候,首先会遇到品种的问题,到底栽什么品种的向日葵才算合适呢?目前关于向日葵的品种还没有很好的整理。这个问题便不能作一个肯切的回答。不过我们知道向日葵可以分为三种类型,就是(1)油用类型;(2)食用类型;(3)兼用类型。油用类型植株比较矮小1.5—2.5尺高,花盘也小,直径只有5寸到7寸,种子也小,可是种仁很充实,是榨向日葵油的好材料。油分可以达到种仁的50—55%。现在我们的农业研究机关已自苏联和东欧人民民主国家引进油用品种,想来不久便可展开推广。食用类型茎杆粗壮,高大,不分枝杈,种子瘦而长。种子不充实,含油量少。这就是我们日常食用的品种。兼用类型的性状界于其间。植株外表上像食用种,但是种子宽大,种皮比食用种厚,种仁比较饱满,含油量高,有些具有分杈。为了响应号召,把收获的向日葵种子献给国家,目前应该尽量用兼用品种播种(图1)。
When planting sunflowers, first of all will encounter the issue of variety, what kind of sunflower planted in the end be considered suitable? At present, the varieties of sunflower has not been well organized. This question can not be a definitive answer. However, we know sunflower can be divided into three types, namely (1) the type of oil; (2) the type of food; (3) the type of dual use. Oil type plant shorter than the 1.5-2.5 feet high, small disc, diameter of only 5 inches to 7 inches, the seeds are small, but the seed is very rich, is a good material for pressing sunflower oil. Oil can reach 50-55% of seed kernels. Now that our agricultural research institute has introduced varieties of oil from the Soviet Union and the Eastern European peoples and democracies, we can start promoting it soon. Edible stalks stout, tall, branched twigs, thin and long seeds. The seeds are not rich, less oil. This is the type of food we eat everyday. Both types of traits go in between. Plants look like food species, but the seed is generous, the seed coat is thicker than the edible seed, the seed is full, the oil content is high, and some are bifurcated. In response to the call, the sunflower seeds harvested for the country, the current should try to seeding varieties (Figure 1).