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1、从品种地域生态型观点考虑,育成甘蔗高糖高产品种的各种条件。2、论述了杂交组合选择技术及检定方法,并论证了为育成优良品种累积和扩大有用遗传质的必要性和存在问题及其解决方法。3、品种由热带移到温带栽培可分化出多样的类型,按成分分类,可分为五种适应品种群。4、品种地域适应性,主要由同化器官的光环境变迁形成适应型,它与育成品种产地纬度密切相关。5、同一品种,从温带移到亚热带,同化器官就会产生适应环境的形态变异,并且同一品种适应群有同样的地域生态反应。6、品种适应型和产量的关系,在温带:温带>亚热带>热带品种群;在亚热带:亚热带>热带=温带品种群。同纬度的适应品种最容易发挥增产潜力。7、多收性品种的株型:不分地域,都以叶面积指数的扩大为条件,但是在温带,叶身小,直立的株型,同化势强,具有早期伸长快;亚热带不要特殊株型。8、与亚热带相比,高糖性是温带地域的重要育种目标,只有得到同化率良好的株型和缩短基本营养生长期,才能达到这一目标。9、西南群岛育种中,很盛行以株型和适应型为选择标准,但应开展以生态型育种为基本概念的育种工作。
1, from the species point of view of ecological type, bred high sugar cane high yield varieties of various conditions. The hybrid combination selection technique and test method are discussed, and the necessity, existing problems and solutions for accumulating and expanding useful genetic material for breeding elite varieties are demonstrated. 3, the species moved from tropical to temperate culture can differentiate into a variety of types, according to composition classification, can be divided into five kinds of adaptation products. 4, Variety regional adaptability, mainly from the assimilating organ light environment changes to form adaptive, it is closely related with the latitude of the origin of breeding varieties. 5, the same species, moving from the temperate zone to the subtropical zone, the assimilate organ will produce the morphological variation that adapts to the environment, and the same variety of the same species has the same regional ecological response. In the temperate zone: temperate zone> subtropical> tropical plant population; in subtropical zone: subtropical zone> tropical zone = temperate zone. The same latitude to adapt to the most likely to play a yield potential. 7, more yield varieties of plant type: irrespective of region, are to expand the leaf area index conditions, but in temperate, small leaf body, vertical plant type, strong assimilation potential, with early elongation fast; not subtropical Plant type. 8, Compared with the subtropical, high sugar is an important breeding goal in temperate regions, only get a good assimilation rate of plant type and shorten the basic vegetative growth in order to achieve this goal. 9, Southwest Islands breeding, it is prevalent in plant type and adaptability as the selection criteria, but should carry out ecological breeding as the basic concept of breeding work.