河南省2006年审定的花生新品种

河南省农作物品种审定委员会于2006年3月31日在郑州召开第六届二次会议，会议审定通过了玉米、水稻、大豆、棉花、花生、西瓜、油菜等七种农作物共63个新品种。其中5个花生新品种通过审定定名。     

2005年浙江省审定通过的水稻品种（组合）

2005年浙江省品种审定委员会第一次会议审定通过23个水稻新品种(组合),文章介绍了各品种的主要特征特性和产量水平。     

湘、粤新审（认）定的水稻等农作物新品种

1994年1月，湖南、广东省农作物品种审定委员会审定通过的农作物新品种分别为17个和16个，认定的分别为5个和3个。兹以水稻为重点介绍如下：     

全国水稻育种“七五”攻关进展显著

“水稻新品种选育技术”是国家重点科技攻关项目的子项,下有四个专题。通过3年的协作攻关,全国水稻育种攻关取得了显著进展。 1.新品种新组合选育。1986—1988年已有21个新品种和组合通过了省级审定,其中常规品种16个,如辐8～l、黔百417.特青、黔糯204、辽盐2号等,杂交稻4个,如     

介绍一九八八年新审定的四个水稻新品种

<正> 辽宁省品种审定委员会于六月二十九至三十日,在沈阳召开了会议。有三十八个农作物、果蔬品种通过了省级审定,其中有四个水稻新品种,即:辽粳287。辽盐2号、铁粳3号、营丰一号,现分别     

四川省1995年审定的水稻新品种

1995年5月四川省农作物品种审定委员会审定通过了如下9个水稻新品种：     

黑龙江省1994年审定的水稻新品种

黑龙江省农作物品种审定委员会1994年2月23～26日审定通过了8个水稻新品种：     

江西省1995年审（认）定的水稻新品种

江西省农作物品种审定委员会1995年5月审定通过了3个水稻新品种(组合)，认定了2个品种。     

2006年宁夏回族自治区审定通过的水稻新品种

2006年宁夏回族自治区审定通过6个水稻新品种。其中有5个是本省自育的水稻新品种,现将其特征特性及产量表现作一简介。     

浙江省1994年审定的水稻新品种

浙江省农作物品种审定委员会1994年5月4日审定通过36个水稻新品种：     

Factors in the Reduction in Grain Number in Winter Wheat by Early-Sowing in Yamaguchi

Abstract

Grain number per spike of wheat is lower in early sowing than in the conventional standard cultivation in Yamaguchi, Prefecture, Japan. Components of the grain number per spike in five cultivars were analyzed with respect to temperature during the spike development period throughout three growing seasons 2001/2002, 2002/2003 and 2003/2004 to find the cause of the problem of early sowing cultivation. The plants sown in early-October and late-November were called the early sown group and the standard group, respectively, in the following. Three of the five cultivars, Hokushin, Akitakko and Nanbukomugi, showed a strong winter habit, which requires very cold temperatures for spike differentiation. The other two cultivars, Iwainodaichi and Airakomugi, had a moderate winter habit. Grain number per spike and grain yield were decreased by early-sowing (compare with the standard group) in almost all cultivars throughout the three growing seasons. The three cultivars which had a strong winter habit had fewer spikelets per spike in the early-sown group than in the standard group. The other two cultivars which had a moderate winter habit had fewer grains per spikelet in the early-sown group. The higher the temperature during the spikelet formation phase, which is from flag leaf initiation to terminal spikelet initiation, the higher the number of spikelets per spike in the standard group. The spikelet number per spike in the early-sown group increased with the increase in productive tillers under fertile conditions. Such conditions also increased the grain number per spike.     

Allelopathy in Agroecosystems in Spain

Summary

This paper reviews the effects of allelopathic interactions in agroecosystems in Spain on plant physiological activity and their ecological advantages. The phenological stage of growth of donor plants and the effective allelochemicals in the soil solution while studying the role of phenolic compounds were highlighting. Finally possible future prospects and conclusions regarding weed control by allelochemi-cals under integrated crop management strategies are discussed.     

2009年中国稻米市场分析及2010年展望

以翔实的资料对2009年中国稻米生产、消费、进出口、供求平衡、库存、价格走势、购销政策和国际稻米供求等情况进行了全面地分析,对影响2010年稻米市场价格走势的各种因素进行了深入研究,并在此基础上对2010年我国稻米市场价格走势进行了预测,结论是我国稻米价格仍呈上行趋势。     

Advances in Variable Rate Technology Application in Potato in The Netherlands

Precision agriculture is a farming management concept based on observing, measuring and responding to inter- and intra-field variability in crops. In this paper, we focus on responding to intra-field variability in potato crops and analyse variable rate applications (VRAs). We made an overview of potential VRAs in potato crop management in The Netherlands. We identified 13 potential VRAs in potato, ranging from soil tillage to planting to crop care to selective harvest. We ranked them on availability of ‘proof of concept’ and on-farm test results. For five VRAs, we found test results allowing to make a cost-benefit assessment. These five VRAs were as follows: planting, soil herbicide weed control, N side dress, late blight control and haulm killing. They use one of two types of spatial data: soil maps or biomass index maps. Data on costs and savings of the VRAs showed that the investments in VRAs will pay off under practical conditions in The Netherlands. Savings on pesticide use and N-fertilizer use with the VRAs were on average about 25%, which benefits the environment too. We foresee a slow but gradual adoption of VRAs in potato production. More VRAs will become available given ongoing R&D. The perspectives of VRAs in potatoes are discussed.     

我国高粱育种研究进展

对我国高粱育种的主要途径和研究方向进行了概述,针对目前高粱产量徘徊现象,提出了高粱超高产育种设想,并对其技术路线进行了探讨。     

Diurnal changes in net photosynthetic rate in potato in two environments

Summary Diurnal changes in net photosynthetic rate were measured in a furrow-irrigated potato crop and in a riverbed crop where the water table was always maintained at 20–28 cm from the soil surface. In the irrigated crop, the photosynthetic rate during mid-afternoon was about half the peak rate observed at noon. This reduction was accompanied by a near tripling of stomatal resistance, a 45% reduction in transpiration, and a 5-fold increase in the difference between leaf and air temperatures. No such changes were observed in the riverbed crop where the photosynthetic rate remained nearly constant at about 0.9 mg m⁻² s⁻¹ between 9 a.m. and 4 p.m. Tuber yield in the riverbed crop was about 30% higher than in the irrigated crop.     

我国干热区甘蔗抗旱植蔗主要问题研讨

我国干热蔗区是我国甘蔗糖业的重要生产基地,蔗区光热资源丰富,唯降水分布不均成为植蔗生产的主要限制因子;根据蔗区植蔗特点和甘蔗需水规律,苗期抗旱是干热蔗区抗旱植蔗的关键,保证较多的总苗数和足够的生长量是苗期抗旱植蔗需解决的关键技术难题,制定相应的苗期抗旱植蔗栽培技术措施是解决该难题的重要保障;该观点为我国干热蔗区植蔗生产、甘蔗引育种提供理论和技术支持。     

棉花体细胞无性系变异的研究进展

体细胞无性系变异是一种重要的细胞工程育种技术,其应用于棉花育种的前提是建立高效的组织培养诱导再生植株体系.本文简要综述了棉花离体诱导植株再生研究的现状,重点讨论了棉花体细胞无性系变异的表现、利用方法及机理,提出了当前研究存在的问题并对今后的研究进行了展望.