Male Sterility in three crop Lupinus species     

Jon C. Clements  Julia Wilson  Mark W. Sweetingham  John Quealy  Gordon Francis 《Plant Breeding》2012,131(1):155-163

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Generating genetic variation in narrow‐leafed lupin (Lupinus angustifolius L.) for plant architecture by ethyl methanesulfonate mutagenesis          下载免费PDF全文

Kristin Fischer  Eicke Rudloff  Steffen R. Roux  Regine Dieterich  Peter Wehling  Wolfgang Friedt  Brigitte Ruge‐Wehling 《Plant Breeding》2018,137(1):73-80

Narrow‐leafed lupin (NLL) is a source of protein and fibre with exceptional functional properties useful for a variety of purposes. In adapted NLL germplasm selected for low alkaloid contents, the genetic base is narrow, thus limiting fast breeding progress. In an EMS‐based mutagenesis programme, we have treated 40,000 seeds of cv. ‘Boruta’ and obtained a variety of phenotypic mutant lines expressing novel growth types with altered plant height and/or branching. In 3‐year field trials at two locations, three of these lines exhibited significantly improved grain yield components compared to the cv. ‘Boruta’. Growth types of these promising lines were shown to be inherited in a monogenic recessive manner and should, thus, be easily fixable by breeding.  相似文献   

重庆市彩叶植物种类及应用调查   总被引：2，自引：0，他引：2  

丁廷发  谢必武  张凤龙 《长江大学学报》2006,(5)

对重庆市常见的非草本彩叶植物种类及应用情况进行了初步调查,结果表明:调查地点范围内共有乔木、灌木和藤本非草本彩叶植物29种,分属16个科,分布种类多少顺序为:灌木>乔木>藤本;根据叶色种类可分成单色叶类、双色叶类、花叶类和镶边类4大类,应用种类多少顺序为:单色叶类>花叶类>镶边类>双色叶类,分别占科总数和种总数的75.00%和62.06%,应用面积最大的是单色叶类;主要配置方式有:色块种植和基础种植、丛植、列植和群植等,色块种植和基础种植的应用范围相当广泛,分别占科总数和种总数的81.25%和55.18%;针对重庆市彩叶园林植物应用存在的问题,提出了改进建议。  相似文献   

Role of the maternal effect phenomena in improving water stress tolerance in narrow‐leafed lupine (Lupinus angustifolius)          下载免费PDF全文

Agnieszka Kalandyk  Piotr Waligórski  Franciszek Dubert 《Plant Breeding》2017,136(2):167-173

This paper describes experiments concerning improvement of drought tolerance in narrow‐leafed lupine (Lupinus angustifolius L.) by maternal effects. The first step involved harvesting seeds from plants exposed and not exposed to drought during flowering and seed ripening. The next‐generation plants grown from these seeds were exposed to drought and the effects of this stress on their physiological processes were examined. To find out whether drought applied to parent plants may affect tolerance to this stress in progeny plants such features as plant growth, tissue water content, abscisic acid concentration and yield‐related parameters were assessed. The study revealed that the progeny plants grown from the seeds of drought‐treated plants were more tolerant to this stress than the plants grown from the seeds harvested from optimally watered maternal plants. Drought tolerance was manifested by a reduced concentration of abscisic acid, increased plant height and maintaining high leaf water content. Most importantly, these plants produced significantly higher yield when exposed to drought than the plants grown from the seeds harvested from optimally watered plants.  相似文献   

河北省保定市彩叶植物园林应用研究     

王敏  张彦芳  马春阳 《北京农业》2012,(12):76-77

通过对保定市城市绿地中彩叶植物种类及园林应用情况的调查,对其应用现状进行分析,总结出彩叶植物应用存在问题及对策。  相似文献   

Yield components,harvest index and plant type in relation to yield differences in field pea genotypes     

Derrick Jan Moot  David Leslie McNeil 《Euphytica》1995,86(1):31-40

Summary The effectiveness of yield components, harvest index and morphological characteristics as selection criteria among four field pea (Pisum sativum L.) genotypes was examined. Genotypes were grown at a wide range of plant populations (9 to 400 plants m^-2) to maximise environmental diversity.Both biological and seed yields approximately doubled from 9 to 100 plants m^-2. This response flattened from 100 to 400 plants m^-2. Differences among the genotypes were found only at 225 and 400 plants m^-2. Analysis of the yield components highlighted the plasticity and large genotype by environment interactions of field peas. The numbers of pods per plant and peas per pod were maximised when each genotype was grown as spaced plants, but the low plant numbers meant seed yields per unit area were at their lowest.Genotypic differences for plant harvest index (PHI) were also only found at 225 and 400 plants m^-2. Broad sense heritability estimates indicated that direct selection for PHI was not feasible. The inference from the yield component and PHI results was that alternative selection criteria such as physiological or morphological characteristics may be necessary for improved yield potential. Classification of each genotype indicated that low seedling vigour may be a positive attribute for crop plants of semi-leafless and conventionally leafed field peas. Selection based on any single plant attribute is unlikely to lead to dramatic improvements in the yield potential of field peas. Selection should be based on plant characteristics rather than on differences in yield components.  相似文献