小麦品种贵农21,贵农22抗病性研究

采用温室苗期测定和成株期人工诱发接种鉴定方法研究了簇毛麦——硬粒小麦杂种后代贵农21、22的抗病性。苗期抗性测定表明,贵农21、22对国外15个小麦条锈菌生理小种表现为免疫至近免疫反应,仅对具有毒性基因Yr10的菌系82E16表现出中度感病,对供试的国内14个主要条锈菌菌系呈观免疫至近免疫反应。田间成株期抗性试验结果显示,贵农21、22对小麦条锈病、白粉病免疫,高抗秆锈病,中抗叶锈病。小麦品种贵农21、22可作为抗病资源和生产品种加以推广应用。     

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。     

紫薇新品种‘蜀紫粉’

‘蜀紫粉’紫薇是从‘温江大红’实生苗中选育出的新品种。观赏价值高,花期为6月中旬—9月中旬,花色呈紫红色,适宜在四川盆地海拔300~800 m的低山丘陵区栽培。     

热带睡莲新品种‘蓝紫妃’的选育

热带睡莲新品种‘蓝紫妃’(Nymphaea‘Lan Zi Fei’)是由睡莲品种‘保罗蓝’(N.‘Paul Stetson’)籽播实生苗选育。植株大型,重瓣,花型放射状,花瓣蓝白复色,花径18~22 cm,花瓣23~27枚,花梗直立,挺水高度17~24 cm,萼片4片,开花多且硕大,具芳香。叶面绿色并分布不规则暗紫色斑块,叶卵圆形,叶缘具不规则锯齿,平均叶面积为36 cm×33 cm;白天开花型,单花花期3~4 d;南宁地区盛花期5—11月下旬,喜全光照,在南宁地区可露天越冬。     

新型白菜薹品种“雄心一号”的选育

"雄心一号"是以菜心细胞质雄性不育系BC-31-10-5-2-1-1为母本,以早熟白菜2-1-1-1-1-1-1-2-1为父本配制而成的,不需要春化、高产的白菜薹新品种。表现:生长势强,中早熟,播种至初收约55 d,延续采收约48 d,抽薹整齐,商品综合性状好,每667 m~2产量在1 500 kg以上。最适合生长温度15～25 ℃,适宜我国宁夏、甘肃、河南、云南、长江流域和华南地区等主要薹菜栽培区适时栽培。     

绿藤长茄新品种“慈茄2号”选育初探

在慈溪市白沙路街道现代农业示范园区,以韩家路黑藤茄为母本,以天元长茄为父本,杂交而产生变异杂合体,再通过系统选育方法选育成了绿藤长茄新品种——慈茄2号。其表现中熟,定植到采收40 d左右,自开花到商品嫩果采收18 d左右,全生育期130 d;茎、叶、果皮均为绿色,果实长条形,呈弯曲状;长势旺盛,耐热、耐寒、耐涝,连续结果能力强,产量高,品质好。     

软枣猕猴桃新品系—‘蜜玉’的选育

‘蜜玉’是从混合实生后代中筛选出的优良资源,经无性繁殖系统选育出的软枣猕猴桃新品系。果实椭圆形,果皮绿色,光滑无毛,平均单果重12.1 g。果肉绿色,可溶性固形22.5 %,总糖13.4 %,总酸1.06 %,维生素C1050.0 mg?kg-1。口感较甜,香气浓郁,抗寒、抗病能力较强。在吉林左家地区,6月中旬开花,9月初成熟。果实在常温条件下第7天开始软熟,低温（2～4℃）条件下第24天开始软熟。     

红肉猕猴桃果园管理技术概述

红肉猕猴桃是猕猴桃中的特色类群。红肉猕猴桃品种在消费市场需求旺盛,商业价值突出,商业栽培面积快速增加,但产业发展中的技术问题也日益突出。本文就红肉猕猴桃产业发展的基本环境和现状、果园生产的技术问题及解决方案等做一概述,以期为红肉猕猴桃产业健康持续发展提供建议。     

美国最新公布越桔属品种及特征

2014年由克莱姆森大学及美国农业部（USDA-ARS)公布了一些越桔属新品种,包括蓝莓新品种33个,具体包括北高丛蓝莓10个、南高丛蓝莓14个、兔眼蓝莓7个、还有2个未知类别的蓝莓新品种;除公布蓝莓新品种外,还公布了1个蔓越桔新品种。从公布的这些数据可以看出,近年来蓝莓的的育种趋势多集中于早熟品种和晚熟品种,另外,鲜食品种多于加工品种,以及一些具有其他功能的蓝莓新品种也日益受到重视;蔓越桔品种的育种方向依然是开发大果、高产和抗病性好等优异性状的品种。通过该统计结果可知,开发具有多种优异性状的南高丛品种是蓝莓育种的大趋势,其次是北高丛蓝莓和兔眼蓝莓,这也为开发出具有我国自主知识产权的蓝莓新品种指引一定的方向。本文将主要介绍蓝莓、蔓越桔新品种以及它们的特征。     

A proposal for enhanced EU herbage VCU and DUS testing procedures

Herbage production is regarded as having environment-friendly credentials. However, as the ruminant production it supports is facing major challenges on sustainability, environmental footprint and human health concerns, EU herbage cultivar testing must contribute to the solutions. Before new cultivars can be sold in a member state (MS) and gain EU-wide marketing, they must pass official tests to prove they are both novel (distinct, uniform and stable, DUS) with improved value for cultivation and use (VCU). Herbage species present specific challenges, as their allogamy imposes a wide within-cultivar variation that adds complexity to DUS tests and their “value” is only realized in ruminant produce. Current VCU systems measure production, chemical composition and disease/stress tolerances, often on large numbers of candidate cultivars, but prohibitive labour costs and logistics mean that animal intake, ruminant output or environmental benefits cannot be measured directly. Furthermore, some candidate cultivars with proven superior VCU fail DUS even though the non-distinct comparison is with a significantly lower performing registered cultivar. To resolve these problem cases, a “vmDUS” distinctness tool is proposed, which uses molecular markers but conforms to UPOV-declared principles. A short overview of current grassland research shows smart proxy measures of animal value can easily and quickly be adopted into an integrated pan-European (EU-VCU) test network. The proposed EU-VCU scheme will reallocate test resources to conduct these additional tests by placing MS in data sharing collaborations, while retaining their national listing authority. The benefits to all stakeholders from adopting these new testing procedures are considered.