【摘 要】
：
依株高、剑叶长和穗形3个形态指标,把产量达到500公斤左右的育成品系分为6种株型。各型的特点:1型是大穗,优势穗平均实粒数超过或将近200粒;2型是短叶密穗;3型是中间型;4型是
【机 构】
：
上海市农业科学院作物育种栽培研究所,上海市农业科学院作物育种栽培研究所
论文部分内容阅读
依株高、剑叶长和穗形3个形态指标,把产量达到500公斤左右的育成品系分为6种株型。各型的特点:1型是大穗,优势穗平均实粒数超过或将近200粒;2型是短叶密穗;3型是中间型;4型是稀长穗;5型是大粒;6型是矮秆多穗。认为大穗是高产株型的突破口,1型的高产潜力最大。但株型上还需改良。
According to the height of plant, the length of flag leaf and the shape of panicle three morphological indicators, the yield of about 500 kg of finished product lines are divided into six plant types. The characteristics of each type: type 1 is a large spike, dominant spike average grain number more than or nearly 200; type 2 is short leaf spike; type 3 is the middle; type 4 is sparse spike; type 5 is a large grain; Type is dwarf and more spike. Big spike is considered as a breach of high yield plant type, type 1 has the highest yield potential. However, the need to improve plant type.
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