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糯玉米自交系衡白522的选育及应用 总被引:3,自引:0,他引:3
衡白522是从地方品种衡白多穗中自交分离出的糯质玉米自交系,该自交系具有配合力高、综合性状好、抗病、抗倒和适应性广等特点,用以组配的烟单5号(糯)、苏玉(糯)1号、渝糯1号、渝糯2号等糯质玉米杂交种已大面积应用于生产。 相似文献
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[目的]筛选适宜在合肥地区推广的优质、高产鲜食糯玉米新品种。[方法]2021年对引进的6个鲜食玉米新品种开展比较试验,调查其生育期、植株性状、果穗性状、经济产量性状、口感品质等。[结果]不同品种的全生育期在91~96 d,生育期最短的品种为苏玉糯702,生育期最长的是万糯2000;单穗重250.6~305.0 g,最重的是彩甜糯10号,最轻的是万糯2000;产量(鲜穗)在13 168.5~17 218.5 kg/hm2,最高的是苏玉糯702,最低的是万糯2000;口感品质评分中,苏玉糯702最高,万糯2000和金糯685较低。[结论]苏玉糯702、彩甜糯10号、农科糯336、申科糯601等4个品种产量、品质表现较好,建议进一步加大示范推广;万糯2000、金糯685则需进一步试验比较。 相似文献
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采用NCⅡ遗传设计和朱军QGA加性-显性模型(AD模型)软件,分析来自云南省18个地方品种糯玉米、2个普通玉米和4个引进的自交系,研究了穗粗、单株粒重、千粒重、穗行数和穗重等9个性状的加性和显性遗传效应。结果表明,单株粒重、穗重和穗行数受基因加性效应控制,加性效应方差对表型方差的贡献率分别为33.7%、33%和29%;千粒重、穗长和穗粗受基因加性效应-显性效应控制,加性和显性效应方差对表型方差贡献率分别为千粒重33%和21%、穗粗39%和13%、穗长17%和10%;其它3个性状受环境影响较大,遗传模式也较为复杂。遗传力分析揭示了对单株粒重、穗重、穗行数、千粒重和穗粗选择效果明显;以性状加性效应值及显著性,筛选出3、10、15、16和18号5个糯玉米优异自交系,其所有观察性状的加性效应值均优于对照CK1(忻州黑糯)和CK3(中糯246)自交系,部分性状优于CK2(N9605)和CK4(自330)。 相似文献
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淮科糯2号是2006年冬季在海南以自育超黑糯玉米自交系糯653为母本、自育紫糯玉米自交系黑-2为父本,杂交育成的中熟、抗倒、抗病、大穗型超黑糯玉米杂交种,2011年通过安徽省农作物品种审定委员会审定,审定编号:皖玉2011004。 相似文献
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不同品种、密度、肥料对甜糯玉米产量的影响研究 总被引:18,自引:0,他引:18
根据正交设计原理,对甜糯玉米的产量在品种、密度、肥料配比等三个因素影响下的变化进行了研究,结果表明三因素对甜糯玉米鲜穗产量的影响效果依次为:品种、密度、肥料;在一定范围内,甜糯玉米鲜穗产量随密度的升高而增加;适量施用K肥可以提高产量;并找到了适宜本地的甜糯玉米高产栽培措施的优化组合. 相似文献
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概述了海峡两岸农业交流与合作的现状,提出了应该共同呼吁尽快实现两岸“三通”,开放农业生物技术图书期刊资料交流以及开放生物学科方面网络的思路,以便为农业交流与合作的顺畅开展打好基础,并寄希望能够就糖蔗、果蔗以及甘蔗笋等方面的研究与开发到台湾学习取经,开展学术交流或与台湾同行共同开展研究,为我省甘蔗业的发展作出贡献。 相似文献
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《Journal of Cereal Science》2007,45(3):236-251
Sorghum is a good source of phenolic compounds with a variety of genetically dependent types and levels including phenolic acids, flavonoids, and condensed tannins. Most sorghums do not contain condensed tannins, but all contain phenolic acids. Pigmented sorghums contain unique anthocyanins that could be potential food colorants. Some sorghums have a prominent pigmented testa that contains condensed tannins composed of flavan-3-ols with variable length. Flavan-3-ols of up to 8–10 units have been separated and quantitatively analyzed. These tannin sorghums are excellent antioxidants, which slow hydrolysis in foods, produce naturally dark-colored products and increase the dietary fiber levels of food products. Sorghums have high concentration of 3-deoxyanthocyanins (i.e. luteolinidin and apigenidin) that give stable pigments at high pH. Pigmented and tannin sorghum varieties have high antioxidant levels that are comparable to fruits and vegetables. Finger millet has tannins in some varieties that contain a red testa. There are limited data on the phenolic compounds in millets; only phenolic acids and flavones have been identified. 相似文献
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Sorghum and millet phenols and antioxidants 总被引:5,自引:2,他引:5
Sorghum is a good source of phenolic compounds with a variety of genetically dependent types and levels including phenolic acids, flavonoids, and condensed tannins. Most sorghums do not contain condensed tannins, but all contain phenolic acids. Pigmented sorghums contain unique anthocyanins that could be potential food colorants. Some sorghums have a prominent pigmented testa that contains condensed tannins composed of flavan-3-ols with variable length. Flavan-3-ols of up to 8–10 units have been separated and quantitatively analyzed. These tannin sorghums are excellent antioxidants, which slow hydrolysis in foods, produce naturally dark-colored products and increase the dietary fiber levels of food products. Sorghums have high concentration of 3-deoxyanthocyanins (i.e. luteolinidin and apigenidin) that give stable pigments at high pH. Pigmented and tannin sorghum varieties have high antioxidant levels that are comparable to fruits and vegetables. Finger millet has tannins in some varieties that contain a red testa. There are limited data on the phenolic compounds in millets; only phenolic acids and flavones have been identified. 相似文献
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近年来,随着大豆播种面积的增长,受病虫危害日趋严重。特别是大豆根潜蝇(又名根明)与根腐病共同发生危害,严重影响大豆的生产。综合防治技术主要手段是三年以上轮作,适时播种及种衣剂拌种等措施。 相似文献
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Summary Between 1993 and 1998 205 different potato cultivars and 1220 accessions/genotypes of wild and cultivated potato species from
the IPK Genebank Gatersleben were evaluated. Parameters interesting for starch isolation and especially for the use of starch
were determined. Altogether, there was a higher variability in wild potato species than in cultivated potatoes for all characteristics
investigated: dry matter content, starch content, protein content, amylose content and mean particle diameter of starch granules. 相似文献
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In field experiments conducted over 2 years in Mediterranean conditions, five winter and five spring triticales were evaluated for forage and grain production in the same cropping season. The experiments had two treatments, namely harvesting for grain only, and dual-purpose forage and grain production. In the latter treatment, forage was cut when the first node was detectable (Zadoks' stage 31), without removing the apical meristems. Grain was harvested when ripe (Zadoks' stage 92) in both cut and uncut plots.
Environmental conditions affected grain production and protein content more than forage yield and quality. Winter triticales yielded about 43% more forage than spring types, but after forage removal the spring types yielded about 36% more grain than winter triticales.
Reductions in grain yield after clipping were more pronounced in winter (32%) than in spring (19%) types. Forage crude protein content was significantly higher in the spring types studied (24.6%) than in the winter types (23.5%), the opposite being true for fibre content (20.7 and 21.6% respectively). Grain crude protein content did not differ between grain and dual-purpose treatments, but was higher in the spring triticales (12.8%) than in the winter types (11.9%). There was more variability for the measured traits within the winter triticales studied than within the spring types. 相似文献
Environmental conditions affected grain production and protein content more than forage yield and quality. Winter triticales yielded about 43% more forage than spring types, but after forage removal the spring types yielded about 36% more grain than winter triticales.
Reductions in grain yield after clipping were more pronounced in winter (32%) than in spring (19%) types. Forage crude protein content was significantly higher in the spring types studied (24.6%) than in the winter types (23.5%), the opposite being true for fibre content (20.7 and 21.6% respectively). Grain crude protein content did not differ between grain and dual-purpose treatments, but was higher in the spring triticales (12.8%) than in the winter types (11.9%). There was more variability for the measured traits within the winter triticales studied than within the spring types. 相似文献
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种子加工、检验理论与技术现状及思考 总被引:3,自引:0,他引:3
种子加工及检验是种子向市场流通的关键,是商业化育种中赋予种子商品属性不可或缺的环节。种子加工、检验理论与技术的研究是完善种业产业链、实现规模化商业育种、夯实“育繁推一体化”种业科学的重要一环。中国的种业科学技术体系正在形成与完善之中,受制于行业发展水平,种子加工及检验理论与技术相对薄弱。本文回顾了种子加工及检验理论与技术研究发展历程,提出了完善中国种业科学发展的策略与建议。围绕种业发展的需要,在做好品种优质化繁育的基础上,分析种子加工及检验理论与技术的新方向和新需求,加强种业应用性研究,建立先进的种子质量检验体系,研制适合现代种业发展需求的种子加工设备,打造种子加工产业标准化生产体系,完善种业科学技术学科建设,促进种业产业持续健康发展。 相似文献
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《Journal of Crop Improvement》2013,27(1):313-324
Summary Arbuscular mycorrhizae were inoculated into phosphorus-deficient soil fertilized with either organic or chemical fertilizer with cucumber (Cucumis sativus L.) as the first crop and lettuce (Lactu-ca sativa L.) as the second crop but without additional fertilization and AM inoculation. AM increased dry matter and fruit yield of cucumber significantly in the unfertilized, organic-fertilized and P-deficient plants compared with the fully chemical-fertilized plants. AM inoculation increased the available phosphorus in plant and soil by around 30% for all treatments except for those chemically-fertilized. The rate of AM infection did not differ significantly among the fertilization treatments, but the infection intensity was higher in unfertilized, organic-fertilized and phosphorus-deficient treatments than chemical-fertilized treatment. The residual effects of AM-inoculated to cucumber were evident for lettuce in all pre-treatments that were unfertilized and un-inoculated for the second cropping. Without P-fertilization, neither crop could grow optimally even when the soil was inoculated with AM, suggesting that AM could not serve as a substitute for phosphorus fertilizer. However, the other beneficial effects of AM on crop growth and yield could not be fulfilled with phosphorus fertilizer. 相似文献