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不同小麦品种其穗下节的长短、粗细和剑叶面积的大小与穗部经济性状(主要是粒数、千粒重、以及穗长)究竟存在何种相关,程度如何?本试验就这个问题进行探讨,试图为选育高产的小麦新品种和通过有关的栽培技术提高小麦产量提供理论依据。 一、试验材料与方法 试验是根据省农科院“南方冬麦区中南片小麦区试(1984)”及“栽培试验”两个试验结合观察进行。前者有江西、湖南、湖北三省所选育出的有代表性的新品种赣麦174、“77390”、湘1675、湘1801及鄂麦9号、鄂麦6号“1425”、襄麦8号等八个品种,后者的
What is the relationship between the size of the next section, the size of the leaf and the size of the flag leaf in different wheat cultivars and the economic traits of the ear (mainly the grain number, 1000-grain weight, and the spike length)? What is the extent of this? , Trying to provide a theoretical basis for breeding high-yielding wheat varieties and improving the yield of wheat through the relevant cultivation techniques. First, the test materials and methods The test is based on the Provincial Academy of Agricultural Sciences, “Southern Winter Wheat Zhongnannan wheat area test (1984)” and “cultivation test” two experiments combined with observation. The former includes Jiangxi wheat, 174,77390, Hunan 1675, Hunan 1801 and Emei 9, Emei 6 “1425”, and Xiangmai 8, which are bred by Jiangxi, Hunan and Hubei provinces. Eight varieties, the latter’s