关于高粱产量性状的杂种优势,人们已作了大量的研究,但是关于光合性状优势及其与产量性状内在联系的报道,尚不多见。我们于1982年开展了这方面的工作,旨在为选配适宜亲本、创造理想的优良杂种和制定合理的高产栽培措施提供依据。一、材料和方法用往年鉴定出的具有不同杂种优势的15个杂交组合(表1),及其相应的恢复系和保持系作材料。 Much research has been done on the heterosis of sorghum yield traits, but there are few reports on the advantages of photosynthetic traits and their intrinsic relationship with yield traits. We started this work in 1982 with the aim of providing a basis for matching suitable parents, creating desirable hybrids and establishing reasonable high-yielding cultivation practices. I. MATERIALS AND METHODS Fifteen hybrid combinations (Table 1) with different heterosis identified in previous years and their corresponding restorer and maintainer lines were identified.