玉米品种齐单1号新疆制种高产技术

玉米新品种齐单1号2006年4月通过山东省农作物品种审定委员会审定，审定编号为鲁农审2006002号：2007年11月通过国家农作物品种审定委员会审定，审定编号为2007013。该品种具有高产、优质、抗逆性强等特点，审定推广区域达全国16省市，     

大豆新品种皖宿2156的选育及栽培技术要点

皖宿2156是宿州市农业科学院经有性杂交系谱法选育而成，经多年多点试验，表现出高产、稳产、优质、适应区域广等特点，2012年通过安徽省农作物品种审定委员会审定推广，2013年通过国家农作物品种审定委员会审定推广。     

优质杂交水稻新组合泰优305的高产制种技术

泰优305是广东省农业科学院水稻研究所选育的杂交水稻新组合，2019年通过湖南省农作物品种审定委员会审定，2020年分别通过江西省、广西壮族自治区农作物品种审定委员会审定，具有米质优、丰产性好、后期转色顺畅等特点。介绍了泰优305组合亲本特征特性及高产制种技术。     

杂交籼稻新组合天优290高产制种技术

天优290具有高产稳产、适应性广、抗病性强、米质优、适口性好等特点，于2005年通过广东省农作物品种审定委员会审定，2006年通过国家品种审定。介绍了该组合父母本的主要特征特性，总结了其高产制种技术措施。     

高配合力优质水稻温敏核不育系爽1S的选育与应用

爽1S是湖南杂交水稻研究中心用隆科638S与两用核不育系中间材料D115（茉莉丝苗/N118S）杂交后经长沙、浏阳和三亚等地选育而成的水稻温敏核不育系，具有不育起点温度低、配合力强、异交率高、抗性好、米质优等特点，2019年12月通过海南省农作物品种审定委员会审定。利用该不育系已选配出爽两优132、爽两优华占、爽两优138和爽两优1143等9个组合通过国家或省级审定，组合优质率近90%。此外，2022年有10个爽两优组合申报国家审定或省级审定。     

优质籼型水稻不育系扬泰A的选育与应用

扬泰A是广东省农业科学院水稻研究所选育的三系不育系，具有品质优、异交性好、抗倒性强等特点。2020年通过广东省农作物品种审定委员会的技术鉴定，已组配有1个组合通过省级审定，2个组合通过国家品种审定。     

水稻新品种牡丹江31选育及栽培要点

牡丹江31是由黑龙江省农业科学院牡丹江分院水稻研究所育成的晚熟品种，具有优质、高产、抗病、耐冷、适应性强等特点，2010年通过黑龙江省品种审定委员会审定。     

中麦175在青海高原高产栽培技术

中麦175由中国农业科学院作物科学研究所国家小麦改良中心育成，2007年通过北京市、山西省农作物品种审定委员会审定，2008年通过国家审定，2009年通过河北省审定，2011年通过青海省审定。该品种冬性，抗寒性强，中早熟。幼苗半匍匐，分蘖力和成穗率较高。株型紧凑，株高75～80cm，茎秆坚硬，抗倒伏性好。     

低酚棉冀棉19介绍

低酚棉冀棉１９介绍由河北农业大学主持与邯郸地区农科所合作共同培育的冀棉１９（冀无２０３１）属低酚棉。１９９２年经河北省品种审定委员会预审定，又于１９９４年３月决审定通过，命名冀棉１９。可以在保定以南，沧、衡、石、邢、邯等地区以及黄河流域各省适宜棉区种...     

优质高产抗病耐贮藏杂交水稻新品种内10优7185的选育与应用

内10优7185是福建省农业科学院水稻研究所用福恢7185与内香10A配组育成的三系籼型杂交水稻新品种，在2017—2019年长江上游国家区域试验及生产试验中，表现出群体整齐、熟期较早、米质优（达部颁3等）、丰产性、稳产性和适应性较好等特点。2020年通过国家农作物品种审定委员会审定，2021年通过海南省农作物品种审定委员会审定。2020年经田间和室内稻瘟病抗性鉴定，内10优7185对苗瘟、叶瘟和穗颈瘟均表现为抗病。人工模拟老化处理（42℃下处理28 d）后再进行发芽实验结果表明，其发芽率达72.00%，表现出较强的耐贮藏性。     

豫北优质大豆产业发展策略

针对豫北地区的大豆生产现状，从气候、土壤、品种、生态因素及市场需求等方面提出了优质大豆的发展策略与途径。     

湖南沅陵4种绿茶品质成分分析

以长沙县高桥相同嫩度茶鲜叶原料采用卷曲形毛尖茶加工工艺制绿茶为对照,分别对沅陵县齐眉翠峰、凤娇碣滩茶、干发茶和军大坪茶4种绿茶的主要生化成分与感官品质进行初步分析。结果表明,沅陵4种绿茶的茶多酚总量28.76%~30.34%,游离氨基酸总量2.35%~3.22%,咖啡碱含量3.00%~3.63%,水浸出物含量37.26%~40.07%,可溶性糖总量5.46%~5.65%,可溶性蛋白含量1.50%~1.74%,类黄酮化合物总量1.16%~1.79%,叶绿素总量1.36%~2.01%,儿茶素总量13.53%~16.20%。与对照相比,4种绿茶的茶多酚、可溶性糖和儿茶素总量均高于对照,除齐眉翠峰外其余3种茶样水浸出物和叶绿素总量均高于对照,除干发茶外其余3种茶样类黄酮化合物总量均高于对照。     

Analysis of nutritional components of eight famine foods of the Republic of Niger

In the western Sahel, indigenous plants become important staples when cereal harvests are inadequate to support populations inhabiting that region of Africa. The purpose of this study was to assess the nutrient content of several of these edible wild plants. The leaves of the following seven plant foods were analyzed: Ziziphus mauritiana, Cerathotheca sesamoides, Moringa oleifera, Leptadenia hastata, Hibiscus sabdarifa, Amaranthus viridi, and Adansonia digitata. The fatty acid, vitamin E, carotenoid, selected mineral and amino acid contents of these plant foods were determined. These same analyses were performed on the fruit of the Adansonia digitata. In quantitative and qualitative terms, Amaranthus viridis was found to be an excellent source of protein. Its amino acid composition compared favorably to that of a World Health Organization (WHO) protein standard. It also contained considerable amounts of the two fatty acids that are essential in humans (linoleic and -linolenic) and a number of minerals including iron, magnesium, calcium and zinc. The leaves of Hibiscus sabdarifa contained an appreciable quantity of protein the composition of which was comparable to the WHO standard. The mineral content of the leaves of this plant was also exceptionally high; noteworthy was its high zinc content. H. sabdarifa also contained significant quantities of the two essential fatty acids. Ziziphus mauritiana was an excellent source of the essential fatty acid linoleic acid and several of the metals including iron, calcium, magnesium and zinc. Its content of other essential nutrients, however, was rather low. In general, Adansonia digitata leaves were nutritionally superior to the fruit of the tree; however, the fruit did contain useful quantities of potassium, phosphorus, zinc and -linolenic acid. The Leptadenia hastata leaves were an especially good source of lutein and -carotene. These data should be useful to the people who inhabit the western Sahel in helping them devise healthy diets during times when cereal staples are in short supply.     

狗牙根诱变后代抗寒性评价

通过电解质外渗法和匍匐茎恢复试验对‘阳江’狗牙根及其12个通过形态鉴定选出的坪用价值高且花序密度低的诱变后代进行抗寒性鉴定。电解质外渗法结果表明:诱变后代间的抗寒性具有较大差异,其叶片半致死温度(LT₅₀)的变异范围为-7.6～-0.2℃(最低值与最大值相差7.4℃);参试材料抗寒性由强到弱依次为M18>M4>M26>M28> M22>阳江>M29>M31>M10>M37>M16>M1>M25,其中,有5个诱变后代抗寒性优于亲本,分别是M18、M4、M26、M28、M22。匍匐茎恢复实验结果表明:诱变后代M1、M22、M26、M31、M25在0℃和-5℃低温胁迫后的恢复生长率都高于亲本,恢复能力均优于亲本;M10、M37、M28在-5℃低温胁迫下,恢复生长能力低于亲本,抗寒性相对较弱,M16和M4在0℃和-5℃低温胁迫下,恢复生长率都低于亲本,抗寒性明显弱于亲本。综合2种方法鉴定结果显示:诱变后代M1、M25的恢复能力较强;M4、M28的叶片抗寒性较好,青绿期较长;M22、M18、M26的叶片抗寒性和匍匐茎恢复能力均较强;M29,M31的叶片抗寒性和匍匐茎恢复能力与亲本相似;M10、M16、M37的叶片抗寒性和匍匐茎恢复能力均较弱,整体抗寒性较弱。     

吉林省平安农业科学院大豆所大豆研究工作报告

1　吉林省平安农业科学院大豆研究工作简介吉林省平安农业科学院大豆研究所 ,设在吉林省长春市西安大路种子大厦内。现有科技人员 6人 ,其中研究员 2人 ,农艺师 2人 ,技术员 2人 ,定向培养研究生 2人。大豆研究所的主要任务是选育稳产、高产、优质及抗病虫大豆新品种 ;同时密切     

Comparisons of methods of scheduling irrigations of potatoes

Irrigation of Netted Gem potatoes was scheduled during three growing seasons by three methods: (a) when plants displayed first visual symptoms of moisture stress, (b) when indicated by a soil moisture budget involving estimated evapotranspiration, and (c) on the basis of tensiometer readings of soil moisture suction. When the tensiometer method of scheduling was used, the mean yields of tubers were 55.0 and 25.8 cwt/acre (6160 and 2890 kg/ha) higher than those obtained with the other two scheduling methods. Methods did not affect the specific gravity of potatoes. Method (a) scheduled irrigations least frequently. Scheduling by the budget method was not always adequate because it was based on the assumption that the crop extracted water from a constant 4 ft (1.2 m) profile from planting to full vegetative growth. In one year the budget method scheduled the first irrigation earlier than necessary and delayed the second irrigation during a critical period of crop growth. From full vegetative cover to harvest the irrigation schedules were alike for both the budget and tensiometer methods.     

Comparison of two methods of PCNB application for control of Rhizoctonia infection of potatoes

A broadcast application of PCNB (Terraclor) resulted in a reasonably uniform distribution of the chemical in the soil with the concentration decreasing in a linear fashion with increasing depth in the soil profile. A banded application resuluted in a considerably higher chemical concentration at the 4–6 inch depth than at the 0–2 or the 2–4 inch depths. The problem of the lack of uniformity of chemical distribution could probably be solved by altering nozzle placement and size and allow use of the band method of application to minimize grower cost. More complete disking in the case of the broadcast treatment would probably result in a relatively uniform distribution of the chemical but at higher cost to the grower. PCNB application rates of 10, 15 and 25 lbs per acre broadcast and 71/2, 10 and 121/2 lbs per acre in a band significantly reduced the severity ofRhizoctonia infection of Russet Burbank potatoes but did not increase potato yields significantly.     

Prediction of the digestibility of the diet of horses: evaluation of faecal indices

Data from in vivo digestibility trial with four to six horses fed twenty-seven forage-based diets are used to calculate prediction equations for the digestibility of dry and organic matter, based on the crude ash (CA), crude protein (CP) and crude fibre (CF) contents of diets and faeces. The most precise prediction of dry-matter digestibility (r.s.d. = 0.032, R²= 0.80) was derived from a multiple regression including faecal (CP, CF) and dietary parameters (CF). Among faecal parameters, CP was the best single predictor of both digestibility (r.s.d) = 0.040, r²= 0.63) and dietary CP content (r.s.d = 0.028, r²= 0.59). For biological reasons we propose a non-linear model that allows prediction of dry- and organic-matter digestibility from faecal CP Content with reasonable Precision (r.s.d = 0.038, 0.036, r²= 0.65, 0.74, respectively). This will be adequate for many studies, especially for free-living animals in rangelands.     

橡胶树丛枝病病原的抗血清制备与应用

以感染橡胶树丛枝病病原的长春花为材料,制备得到橡胶丛枝病病原菌抽提液,以抽提液为抗原免疫家兔,制备抗血清,经微量沉淀测定,抗血清效价为１：２０４８。应用橡胶丛枝病抗血清检测橡胶褐皮病,无症苗木检出率达３０％－３７％,可疑的褐皮病树检出率达８５．７％。