Du Weiguang Zhang Gui ruMan Weiqun?Chen YiLuan Xiaoy anHao NaibinGe Qiaoy ingGu Xiuzhi.DEVELOPMENT OF SOYBEAN CULTIVARS(GERMPLASM)WITH HIGHPHOTOSYNTHETIC EFFICENCY(HPE)AND REDISCUSSION OF BREEDING FOR HPE[J].Soybean Science,2001,20(02):110-115.[doi:10.11861/j.issn.1000-9841.2001.02.0110]
大豆高光效品种(种质)选育及高光效育种再探讨
- Title:
- DEVELOPMENT OF SOYBEAN CULTIVARS(GERMPLASM)WITH HIGHPHOTOSYNTHETIC EFFICENCY(HPE)AND REDISCUSSION OF BREEDING FOR HPE
- 文章编号:
- 1000 -9841 -(2001)02 -0110 -06
- Keywords:
- Soybean ; Hig h photosynthetic eff iciency ; Breeding for high photosynthet ic ef ficiency ; Rediscussion
- 分类号:
- S565.1
- 文献标志码:
- A
- 摘要:
- 通过对高光效种质哈79 -9440 、哈82 -7799 及高光效品种黑农39 、黑农40 、黑农41 的光合特性、主要形态农艺性状、产量和选育程序的描述, 对与高光效育种相关密切的单叶光合速率与产量关系及高光效育种目标、程序和方法进行再探讨。结果如下:1 .大豆生殖生长期单叶光合速率与产量呈正相关。单叶光合速度仍然是高光效育种重要指标之一。2 .大豆高光效育种目标是选育高产和超高产、优质、抗病新品种(种质)。我们把在某一生态区生态类型基础上, 具有较大光能截获能力、光能高速传递能力、高光能转化效率、高光合速率和高RuBP 羧化酶活性、并具有光合产物在籽粒中高比例分配、持续较长光合时间等综合水平定义为理想光合生态型。3 .高光效育种体系包含创造变异途径、有效快速选择变异途径和鉴定途径。
- Abstract:
- The relationship betw een single leaf pho tosy nthetic efficiency and grain yield , the breeding object ivesand the procedure and methods of breeding fo r HPE were rediscussed in this paper based on the description ofphotosy nthetic properties, majo r agronomic t raits , yield and breeding process of hig h photosynthetic eff iciencygermplasms , Ha79 -9440 , Ha82 -7799 and cultivars , Heinong 39 and Heinong 40 .The results are as follow s. There is a positive correlation between single leaf photosynthetic eff iciency and yield at reproductive stages.Sing le leaf photosy nthetic efficiency is still an impo rtant objective of breeding for HPE . HPE is a major w ay fo r developing new cultivars(germplasm)with super high yield , good quality , diseaseresistance and ideal ecoty pe .Ideal ecotype is defined comprehensively having g reater capacity of obtaining sunlight, higher transferring ef ficiency , higher single leaf pho tosy nthetic rate and RuBP Case activity , greater proport ion of pho tosy nthate to seeds , longer photosynthetic duration and nit rogen f ixation abili ty . Breeding system fo r HPE is that :creating variation , of which , inducing and sexual crossing were mainlyused at present ;selecting variant s effect ively with combinat ion of t rai ts diag nosing and inst rument measuring .Leaf weig ht per unit and ecoty pe are mainly selected in earlier generations and in later generations , photosyntheticrate , yield and resistance are major objectives of selecting .The procedure of yield test is the same as that inthe t raditional breeding .Pho tosy nthetic physiological targets are photosynthetic ef ficiency and RuBP Case activity. Reasonable population st ructure and bet ter soil condition are necessary conditions for yield potential expressingof the cultivars wi th HPE .
参考文献/References:
1 赖世登, 刘祚昌.小麦光合性状研究初报[ J] .农业科技情况报,第三期,“ 全国作物高光效育种座谈会论文专辑” , 1978
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备注/Memo
基金项目:国家重点基础研究发展规划项目(G1998010100)。