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1.
采用模糊数学综合评判方法,综合评价了2003年国家饲草高粱杂交种区域试验材料。结果表明,6个饲草高粱杂交种中,其中晋草1号、健宝两个品种以每公顷产量、丰产素质为主,包括抗病性、抗倒性、株高在内的综合性状明显优于对照皖草2号,达到优良的评价标准,其综合指标值分别比对照增加17.51％和15.95％。辽草1号、苏波丹综合性状比对照稍有减产,但减产幅度不大;综合评价为较好或一般,润宝1号、润宝2号比对照减产幅度很大,综合评价为较差。模糊数学评判方法,客观的反映了品种的综合特性,克服了仅用产量指标评价品种优劣的不足,对新品种的审定、推广都具有积极重要的意义。 相似文献
2.
本文用模糊数学综合评判方法综合评价了1991～1992年武汉市长豇豆新品种比较试验材料。结果表明,9个参试品种中之豇14和高产四号的早期产量、总产量、总产值以及丰产素质、早熟性、嫩荚品质、抗根腐病、抗疫病等综合性状明显优于对照之豇28—2,达到优良的评价标准,其综合指标值分别比对照增加19.44%和12.04%,且适应能力强,综合性状稳定性好。之豇19、杜豇和33—47三个品种的综合性状稍劣于对照。综合指标值减少率在10%范围内。其余品种综合性状劣于对照很多。因此之豇14和高产四号可在武汉地区推广种植。 相似文献
3.
克杂13号高粱杂交种是黑龙江省农科院小麦研究所以克18A×克恢42号杂交育成。1985年黑龙江省品种审定委员会审定。该杂交种幼苗耐低温,生长势强。株高210—220厘米,抗黑穗病,耐蚜虫。中紧 相似文献
4.
适宜机械化种植的高粱品种晋杂39号的选育 总被引：1，自引：0，他引：1
《中国种业》2017,(5)
晋杂39号是山西省农业科学院高粱研究所利用自选不育系SX605A为母本、自选恢复系SX1932为父本杂交选育而成的高粱杂交种。2013-2014年参加山西省高粱中晚熟机械化组区域试验,每667m~2平均产585.9kg,比对照晋杂22号增产6.7%,2年8个试验点6个点增产。其中2013年每667m~2平均产566.7kg,比对照晋杂22号增产7.8%;2014年平均产605.1kg,比对照晋杂22号增产5.8%。2015年通过山西省品种审定委员会的审定(审定编号:晋审杂(认)2015005)。晋杂39号抗旱、抗倒性好,高抗丝黑穗病,抗逆性强,适应性强,植株较低,适宜机械化栽培种植。 相似文献
5.
为了满足新疆伊犁地区酿酒企业对优质酿酒专用糯高粱品种的需求,筛选了 4 个试种表现较好的糯高粱品种,在伊犁河谷 2 个不同生态区进行适应性比较试验。试验表明：4 个糯高粱品种在 2 个区域种植均可正常成熟,且所有品种在积温偏低的河谷东部片区种植生育期均比河谷中心片区长 4~5d ;在产量方面,综合 2 个不同地区各糯高粱的产量表现,产量均比对照晋杂 22 高,排名由高到低分别为齐杂 106、辽粘 3 号、齐糯 115、辽糯 10 号、晋杂 22;在酿酒品质方面,4 个参试糯高粱品种的粗淀粉含量介于 73.72%~76.60%,支链淀粉含量介于 95.88%~98.80%,粗蛋白含量介于 8.54%~10.40%,粗脂肪含量介于3.06%~3.91%,单宁含量介于 0.77~1.15%,均符合本地伊力特酒厂对高粱原料的品质需求。综合品种产量及品质特性,推荐齐杂 106、辽粘 3 号在伊犁河谷地区种植。 相似文献
6.
晋杂39号是山西省农业科学院高粱研究所利用自选不育系SX605A为母本、自选恢复系SX1932为父本杂交选育而成的高粱杂交种.2013-2014年参加山西省高粱中晚熟机械化组区域试验,每667m2平均产585.9kg,比对照晋杂22号增产6.7％,2年8个试验点6个点增产.其中2013年每667m2平均产566.7kg,比对照晋杂22号增产7.8％;2014年平均产605.1kg,比对照晋杂22号增产5.8％.2015年通过山西省品种审定委员会的审定(审定编号:晋审杂(认)2015005).晋杂39号抗旱、抗倒性好,高抗丝黑穗病,抗逆性强,适应性强,植株较低,适宜机械化栽培种植. 相似文献
7.
晋杂18号(组培1号)是山西省农科院高粱所首次在国内利用克隆育种技术育成的高产、优质、多抗高粱杂交种.母本为引进美国不育系,父本为本所利用克隆变异技术选育的优良恢复系.1999年通过山西省品种审定.2001-2003年参加全国高粱品种区试,在华北、西北名列第一,超过全国高粱区试标准,今年即可通过国家审定.在制种中,由于父本偏晚,母本对环境条件敏感,杂交制种技术复杂,使得花期相遇不好,影响制种产量和质量.根据该品种的生长发育特性,并通过多年的杂交制种实践,我们摸索出了一套晋杂18号高粱杂交制种栽培技术. 相似文献
8.
9.
早熟高粱晋杂15特性及高产栽培技术 总被引：2，自引：0，他引：2
晋杂 1 5(原名 94-1 )是山西省农业科学院高粱研究所利用外引不育系黑龙 1 1Ａ为母本 ,本所自选抗旱坚秆恢复系七抗七为父本 ,于1 992年育成的早熟、酿酒、高产、多抗高粱杂交种。适宜于我国山西、黑龙江、内蒙古、吉林、河北、辽宁、宁夏、甘肃、新疆等无霜期 1 3 0ｄ左右的地区种植 ,1 998年通过山西省农作物品种审定委员会审定 ,定名为晋杂 1 5。1 产量表现1 994～ 1 995年在寿阳县东部高寒区宗艾镇宗艾村示范区进行的品种 (系 )比较试验 ,两年平均产量为 582 6ｋｇ/ｈｍ2 ,比对照品种赤育 8号增产 3 3 .7% ,1 996～ 1 997年直接参加山… 相似文献
10.
高粱龙杂1号高产栽培技术王黎明(黑龙江省农业科学院作物育种研究所哈尔滨市150086)张育松(哈尔滨市动力区农林局)龙杂1号高粱杂交种是黑龙江省农科院作物育种研究所以不育系ｌ1A为母本,恢复系158为父本杂交而成。该品种综合性状优于同杂2号,具有产量…… 相似文献
11.
Jens Jensen 《Euphytica》1979,28(1):47-56
Summary The high-lysine gene in Risø mutant 1508 conditions an increased lysine content in the endosperm via a changed protein composition, a decreased seed size, and several other characters of the seed. The designation lys3a, lys3b, and lys3c, is proposed for the allelic high-lysine genes in three Risø mutants, nos 1508, 18, and 19. Linkage studies with translocations locate the lys3 locus in the centromere region of chromosome 7. A linkage study involving the loci lys3 and ddt (resistance to DDT) together with the marker loci fs (fragile stem), s (short rachilla hairs), and r (smooth awn) show that the order of the five loci on chromosome 7 from the long to the short chromosome arm is r, s, fs, lys3, ddt. The distance from locus r to locus ddt is about 100 centimorgans. 相似文献
12.
G. H. Kroon 《Euphytica》1994,76(1-2):125-125
Summary
K x vadensis is a hybrid of K. blossfeldiana and K. marmorata obtained after doubling the number of chromosomes. 相似文献
13.
Hongyan WEI Jian ZHOU Jinguang LU Jingzheng SONG Qiongxi YU Zhihong JIANG 《Medicinal Plant》2019,(6):27-29
[Objectives]This study aimed to establish a QAMS(quantitative analysis of multi-components by single-marker)method for simultaneous determination of four phenol... 相似文献
14.
Summary Avoidance of rust fungi that was based on poor appressorium induction was previously found in Hordeum chilense. In the present study 95 accessions of Triticeae were screened for avoidance of Puccinia hordei. The percentage of appressorium formation per germinated spore ranged from 6 to 90%. On none of the 41 accessions of Aegilops, Agropyron, Elymus, Secale, Thinopyrum or Triticum studied was the rate of appressorium formation lower than 25%. Lower rates of appressorium formation were, however, found on accessions of wild barley species Hordeum brachyantherum, H. marinum, H. parodii and H. secalinum. Its implications in cereal breeding are discussed. 相似文献
15.
D. A. Bond G. J. Jellis G. G. Rowland J. Le Guen L. D. Robertson S. A. Khalil L. Li-Juan 《Euphytica》1993,73(1-2):151-166
Progress is being made, mainly by ICARDA but also elsewhere, in breeding for resistance to Botrytis, AScochyta, Uromyces, and Orobanche; and some lines have resistance to more than one pathogen. The strategy is to extend multiple resistance but also to seek new and durable forms of resistance. Internationally coordinated programs are needed to maintain the momentum of this work.Tolerance of abiotic stresses leads to types suited to dry or cold environments rather than broad adaptability, but in this cross-pollinated species, the more hybrid vigor expressed by a cultivar, the more it is likely to tolerate various stresses. 相似文献
16.
Chunli TANG Fengxian ZHAO Hongxia CHEN Jiabao MA Jiangcun WEI Meiyan QIU Zhen XIE 《Medicinal Plant》2019,(6):60-65
[Objectives]To optimize the water extraction process of Chinese Herbal Compound Man Gan Ning and establish a method for its extraction and content determination... 相似文献
17.
Summary Apple and pear pollen was irradiated with doses of 0, 50, 100, 250 and 500 krad (gamma rays) and stored at 4°C and 0–10% r.h. From the in-vitro germination percentages an average LD 50 dose of about 220 krad was estimated. For both irradiated and untreated pollen a close and corresponding lineair relationship existed between germination percentage and pollen tube growth.Irradiated pollen was much more sensitive to dry storage conditions than untreated pollen, resulting in less germination and more bursting. Apparently, irradiation caused the pollen cell membrane to lose its flexibility faster than normal. Rehydration of dry-stored, irradiated pollen in water-saturated air restored germination percentages up to their initial levels. The importance of this procedure in germination trials is stressed. 相似文献
18.
E. Keep 《Euphytica》1986,35(3):843-855
Summary Cytoplasmic male sterility (cms) is described in the F1 hybrids Ribes × carrierei (R. glutinosum albidum × R. nigrum) and R. sanguineum × R. nigrum. In backcrosses to R. nigrum, progenies with R. glutinosum cytoplasm were either all male sterile, or segregated for full male fertility (F) and complete (S) and partial (I) male sterility. Ratios of F:I+S suggested that two linked genes controlled cms, F plants being dominant for one (Rf
1) and recessive for the other (Rf
2).Segregation for cms in relation to three linded genes, Ce (resistance to the gall mite, Cecidophyopsis ribes), Sph
3(resistance to American gooseberry mildew, Sphaerotheca mors-uvae) and Lf
1(one of two dominant additive genes controlling early season leafing out) indicated that Rf
1and Rf
2were in this linkage group. The gene order and approximate crossover values appeared to be: % MathType!MTEF!2!1!+-% feaafiart1ev1aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn% hiov2DGi1BTfMBaeXafv3ySLgzGmvETj2BSbqef0uAJj3BZ9Mz0bYu% H52CGmvzYLMzaerbd9wDYLwzYbItLDharqqr1ngBPrgifHhDYfgasa% acOqpw0xe9v8qqaqFD0xXdHaVhbbf9v8qqaqFr0xc9pk0xbba9q8Wq% Ffea0-yr0RYxir-Jbba9q8aq0-yq-He9q8qqQ8frFve9Fve9Ff0dme% aabaqaciGacaGaamqadaabaeaafaaakeaacaWGdbGaamyzamaamaaa% baGaaiiiaiaacccacaGGWaGaaiOlaiaacgdacaGG0aGaaiiiaiaacc% caaaGaaiiiaiaacccacaGGGaGaamOuaiaadAgaliaaigdakmaamaaa% baGaaiiiaiaacccacaGGGaGaaiiiaiaaccdacaGGUaGaaiOmaiaacs% dacaGGGaGaaiiiaiaacccacaGGGaGaaiiiaaaacaWGsbGaamOzaSGa% aGOmaOWaaWaaaeaacaGGGaGaaiiiaiaacccacaGGGaGaaiiiaiaacc% cacaGGGaGaaiiiaiaacccaaaGaamitaiaadAgaliaaigdakmaamaaa% baGaaiiiaiaacccacaGGGaGaaiiiaiaacccacaGGGaGaaiiiaiaacc% cacaGGGaGaaiiiaiaacccacaGGGaaaaiaadofacaWGWbGaamiAaSGa% aG4maaaa!6E4D!\[Ce\underline { 0.14 } Rf1\underline { 0.24 } Rf2\underline { } Lf1\underline { } Sph3\]. Crossover values of 0.36 for Ce-Lf
1, and 0.15 for Lf
1-Sph
3were estimated from the relative mean differences in season of leafing out between seedlings dominant and recessive for Ce and Sph
3.It is suggested that competitive disadvantage of lf
1-carrying gametes and/or zygotes at low temperatures may be implicated in the almost invariable deficit of plants dominant for the closely linked mildew resistance allele Sph
3. Poor performance of lf
1- (and possibly lf
2-) carrying gametes and young zygotes during periods of low temperature at flowering might also account for the liability of some late season cultivars and selections to premature fruit drop (running off). 相似文献
19.
[Objectives] To determine the optimum extraction technology for total phenols of leaves in Acanthopanax giraldii Harms.[Methods]The single factor test and ortho... 相似文献
20.
Parasitic angiosperms cause great losses in many important crops under different climatic conditions and soil types. The most widespread and important parasitic angiosperms belong to the genera Orobanche, Striga, and Cuscuta. The most important economical hosts belong to the Poaceae, Asteraceae, Solanaceae, Cucurbitaceae, and Fabaceae. Although some resistant cultivars have been identified in several crops, great gaps exist in our knowledge of the parasites and the genetic basis of the resistance, as well as the availability of in vitro screening techniques. Screening techniques are based on reactions of the host root or foliage. In vitro or greenhouse screening methods based on the reaction of root and/or foliar tissues are usually superior to field screenings and can be used with many species. To utilize them in plant breeding, it is necessary to demonstrate a strong correlation between in vitro and field data. The correlation should be calculated for every environment in which selection is practiced. Using biochemical analysis as a screening technique has had limited success. The reason seems to be the complex host-parasite interactions which lead to germination, rhizotropism, infection, and growth of the parasite. Germination results from chemicals produced by the host. Resistance is only available in a small group of crops. Resistance has been found in cultivated, primitive and wild forms, depending on the specific host-parasite system. An additional problem is the existence of pathotypes in the parasites. Inheritance of host resistance is usually polygenic and its transfer is slow and tedious. Molecular techniques have yet to be used to locate resistance to parasitic angiosperms. While intensifying the search for genes that control resistance to specific parasitic angiosperms, the best strategy to screen for resistance is to improve the already existing in vitro or greenhouse screening techniques. 相似文献