优质强筋小麦品种筛选试验

经多点次的优质强筋小麦品比筛选试验表明：多数优质强筋小麦品种适于在许昌市（中原地区）种植，但从产量和品质两方面综合来看，产量和品质性状协调性较好、产量较高、品质较好、适应性较强的品种是新麦9408、郑麦005、郑麦9023、宛麦147，前3个品种最适宜在许昌市推广种植，宛麦147可作搭配品种示范种植，新麦9408、郑麦9023以其抗性好、成穗好、落黄好、比较稳产，最受农民群众欢迎。     

玉米新品种浚单22不同密度对产量的影响

为探讨玉米新品种浚单22获得高产的适宜种植密度，河南省浚县农业科学研究所对浚单22进行了5个处理的密度试验。试验结果表明：在5个试验处理的栽培密度中，以6．00万株／hm^2产量最高，其次为6．75万株／hm^2和5．25万株／hm^2，适宜种植密度为5．25万～6．75万株／hm^2。     

早熟优质糯玉米杂交种西山糯的选育与特征特性

西山糯是贵州大学农学院玉米研究所以一个利用热带种质改良的温带 材料选育的优良自交系（南糯白）作母本，与一个带有独山白糯地方血缘和自交系（糯－1）作父本组配的糯玉米杂交种，根据品比、区试、生产试验和品质分析结果，该品种生育期早、抗逆性好、品质优良、丰产稳产、适应性广、制种产量较高，于2002年通过贵州省农作物品种审定委员会审定，予以推广。     

Effects of arrangement of surge-rootirrigation emitters on growth,yield andwater use efficiency of apple trees

Six-year old apple trees were selected for field experiment. The objective of this study was to obtain the reasonable arrangement of surge-root irrigation emitters in apple orchards. There were three factors: the buried depth H( 25,40,55 cm),the horizontal distance L( 30,40,60 cm) between the emitters and the trunk of the experimental tree,and the number of the irrigation emitters N( 1,2,4). The effect of the arrangement of surge-root irrigation emitters on the growth,yield and irrigation water use efficiency( IWUE) of apple trees were studied in Northern Shaanxi where the irrigation quota takes 60%-75% of the field water capacity. The results showed that the arrangement of emitters for surge-root irrigation had a significant effect on apple tree yield and IWUE,especially,the yield and IWUE reached 28 388. 17 kg/hm2 and 16. 83 kg/m3 in treatment T3,respectively. At the same L and N levels( T1,T2,and T3),the yield and IWUE in treatment T3 were the highest,and the yields in treatments T1 and T2 were decreased by 26.22% and 31.48%,while IWUE is reduced by14.02% and 18.12% compared with T3,respectively. At the same H and N levels( T3,T4,and T5),the yield and IWUE of apple trees were decreased with increasing L level. Especially,when L was 30 cm( T3),the yield and IWUE were the highest. The same L and H levels( T3,T6,and T7) could promote the growth of apple trees when N was 2( T3). Compared with treatment T3,it was found that the increment of new shoots was decreased by 8.07%-18.71%,and the fruit diameter was decreased by 5.41%-9.11%. Therefore,two emitters should be arranged symmetrically on both sides of an apple tree,each was buried at a 40 cm depth and 30 cm away from the trunk of the tree to effectively improve the yield and IWUE of the apple tree in mountainous areas in Northern Shaanxi.     

拖拉机造型设计中“统一与变化”的研究与应用

完美的造型必须具有统一性与变化性,因此“统一与变化”是拖拉机造型设计中必须遵循的法则。从变化中求统一,从统一中求变化,是获得拖拉机完美造型不可欠缺的两个方面。“变化中求统一”主要体现在线型的统一与协调、色彩的统一与协调和主要比例的统一与协调等3个方面。而“统一中求变化”主要体现在对比、突出重点等两方面。     

刀具布置对茎秆切碎还田机振动的影响分析

分析了影响茎秆切碎还田机振动的主要因素，并对典型机具的刀片排列方案进行了研究．从而提出了茎秆切碎还田机刀片排列的主要理论依据。     

智能温室草莓品种比较试验

为筛选出智能温室适栽草莓品种,本试验以红颜为对照,引进宁丰、容宝、紫金久红、甘红等4个品种。以生长季内观察物候期、主要植物学特性、生长结果特性及病害发生情况作为品种适应性监测指标,进行适栽草莓品种的筛选比较试验。结果表明,宁丰、容宝在智能温室高架基质栽培中表现早熟,可适当推广;紫金久红综合性状优良,可作为当地主栽品种红颜的配搭适当发展;甘红可作为观光采摘和鲜食新品种。     

苹果品种‘秦阳’在河南商丘的引种表现及栽培技术

秦阳是西北农林科技大学育成的早熟苹果新品种,2009年在商丘地区引种试栽观察。该品种果实扁圆形,单果重153g,果面着鲜红色,果肉细、脆、多汁,酸甜适口。可溶性固形物含量13.31%,去皮硬度8.72kg/cm2,品质上等。8月上旬成熟,抗病性好,综合性状优,是一个适合在商丘地区推广栽植的优良早熟品种。     

咪鲜胺对柑橘不同品种的保鲜效果评价

柑橘果实在贮藏期间极易发生青霉病、绿霉病、炭疽病等多种病害。为了减轻病害造成的损失,笔者在自然通风贮藏库内用咪鲜胺分别对锦橙、血橙、温州蜜柑和夏橙等4个柑橘品种进行了防腐保鲜效果研究。结果表明咪鲜胺333.33mg/㎏对青霉病、绿霉病、炭疽病和总病害均有较好的保鲜效果,只不同品种保鲜时间各异。以对锦橙和血橙的保鲜时间最长,贮藏期可达120天;其次是温州蜜柑,贮藏期可达60天;对夏橙的保鲜时间最短,只30天。对青霉病、绿霉病的效果,锦橙和血橙达120天,温州蜜柑达90天,夏橙达60天;对炭疽病的效果,锦橙可达120天,血橙达90天,温州蜜柑可达60天,夏橙只30天。咪鲜胺浸药处理对4个品种柑橘的失重率没有影响,只随着贮藏时间的延长,失重率均逐渐增加。咪鲜胺处理对果蒂保持绿色有一定效果,对不同品种柑橘果实内在品质、外观色泽和口感没有负面影响。     

不同草坪品种发芽期耐盐性研究

从发芽势、发芽率、芽长和根长4个方面,分析比较了6个绿化草坪品种发芽期对不同NaCl处理浓度的耐盐性.结果表明:明星和凯蒂莎的耐盐性高于其它品种.