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为筛选出适合在贵州毕节地区种植的优质高产、符合当地气候条件和消费习惯的辣椒品种，作者引进15个辣椒品种开展了比较试验。试验结果表明，万里长椒的始收期较早（较其他品种提早10～20 d）、每667 m2产量达4 000 kg，二荆条的全生育期较长（193 d）、产量较高（每667 m2产量达4 608 kg），适合在毕节地区生长发育，且符合本地消费者的食用习惯，可在毕节地区大力推广种植；单身香辣和真辣8号属于满天星系列品种，虽然产量不高，但市场行情好，收益可观，且抗病性和耐热性强，可在夏季继续开展试验示范进一步验证其生长表现，建议可在低海拔区域小面积示范种植。 相似文献
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为加快浙江余姚地区辣椒产业发展,促进当地种植品种的更新换代,作者开展了辣椒品种比较试验.试验结果表明,丰产美辣29号椒的植株长势旺、产量高、坐果率高、熟期中等、辣味浓,可引入余姚地区作辣椒主栽品种;对照品种早秀王一号的植株长势较旺、产量较高且稳定、辣味浓、熟期早,也可在余姚地区推广种植. 相似文献
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辣椒秋延后栽培是指在秋季和初冬利用大棚进行的一种保护地栽培形式。前期可避开高温季节、减轻病害,后期气温较适宜,有利于辣椒生长,商品果可在深秋季节供应市场,补充我国深秋至初冬辣椒淡季市场,经济效益可观。根据近几年市场情况,每667 m2秋延后种植的辣椒,经济效益一般达到5000～8000元。 相似文献
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作者经长期试验、推广，结果表明，种植辣椒时采取药剂浸种、变温催芽、分苗假植的育苗技术，辣椒可提早上市20d左右，每667m^2。增产150kg以上，经济效益可提高30％。其技术要点如下， 相似文献
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正冀东地区日光温室越冬一大茬辣椒,利用日本进口的野生辣椒砧木BN901进行嫁接栽培,不仅解决了辣椒种植"死棵"的问题,而且经济效益显著,每667 m2产值达6万元。辣椒种植省人工、效益稳定,在冀东地区种植同样面积的辣椒比种植黄瓜可节约近2/3的人工成本,因此,该地区的越冬一大茬辣椒种植面积逐年扩大。近年来,由辣椒连作引起的土传病害较多,导致辣椒死棵严重。为了提高辣椒对土传病害的抗 相似文献
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对10个露地栽培的蔓生菜豆品种的抗性、产量及商品特性等进行考察比较,旨在筛选出适于昆明地区栽培的菜豆品种,为该地区菜豆的种植和推广提供依据。试验结果表明,泰国架豆王(黑皮、桂林天宇)、特级泰国架豆王和泰国架豆王(重庆华渝)3个品种的综合性状表现较好,产量较高,每667 m2分别达到了4 148.7,3 957.9,3 891.3 kg,比较适宜昆明地区种植推广。 相似文献
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在昆明、曲靖、丽江、楚雄、保山5个地方对楚魔花1号魔芋进行区域性比较试验,以当地魔芋种质为对照。试验结果表明,楚魔花1号在不同地区间表现较为稳定,在参试的7个魔芋品系中,楚魔花1号综合表现最好,萌芽出苗所需天数最少,生育期较短,地上部与地下部生长占有优势,抗病性强,产量高于当地主栽种质,下一步可在云南省大面积推广种植。 相似文献
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加快品种更新步伐 构建优势梨果产业带 总被引：5，自引：0，他引：5
梨是我国落叶果树中栽培最广的果树,也是我国落叶果树中的优势产业。当今,在我国农业实施优化农业布局,构建农业优势产业带,应对入世挑战的形势下,作者就我国梨果产业的现状和存在的问题提出加快品种更新步伐,构建我国优质红色梨产业带的构思。根据我国现有红色梨品种在一些地区的表现,认为我国历史上梨果的集中产区,河北石家庄地区以北直至燕山山脉以南,以及云南昆明地区是我国构建优质红色梨产业带的最适地区,其中重点发展的品种应是满天红、红蜜梨和美人酥3个红色梨品种。 相似文献
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为探究紫花苜蓿不同种植布局对苹果园害虫及天敌的影响,在山东省沂水市苹果园设置了紫花苜蓿逐行、隔1行和隔2行种植的布局方式,以自然生草区为对照,系统调查了4种生草方式苹果园果树上和生草上害虫及天敌的发生动态。结果表明:害虫的调查总量,紫花苜蓿逐行种植区最少,比隔1行种植区少20.29%,比隔2行种植区少48.53%,比自然生草区少49.91%;苹果树上天敌的调查总量,紫花苜蓿隔1行种植区最多,是逐行种植区的1.13倍、隔2行种植区的1.29倍、自然生草区的1.78倍;生草上天敌的调查总量,紫花苜蓿逐行种植区最多,是隔1行种植区的1.05倍、隔2行种植区的1.19倍、自然生草区的1.66倍;益害比方面,紫花苜蓿逐行种植区和隔1行种植区的益害比明显高于其他生草区。综合防治效果和种植成本,紫花苜蓿隔1行种植的布局方式更合理。 相似文献
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有机化梨园不同栽培措施节肢动物多样性比较 总被引：5，自引：0，他引：5
运用生物多样性指标对北京顺义地区有机化梨园3个不同栽培区节肢动物群落多样性及其动态进行了系统研究。结果表明,在同一园区内,不同栽培区节肢动物群落的丰富度和均匀度在整个生长季中的动态变化较一致,而优势度出现了明显的时序差别。群落个体数稀植区在大部分时间内均高于其它2区。3个区的主要优势害虫及其天敌在发生时间和数量上有一定差异,早春密植区木虱发生数量较大,稀植区中砂潜、金龟子类害虫以及步甲、蜘蛛类天敌数量相对丰富,入秋后稀植区木虱发生量最大,密植区最小。据此,对主要害虫综合防治体系建立提出了讨论意见。 相似文献
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QI Ren-bin LU Da-xiang WANG Hua-dong WANG Zhen HU Jing-jing WANG Yan-ping FU Yong-mei LI Chu-jie 《园艺学报》2007,23(5):950-954
AIM: To investigate the differences of Alzheimers disease(AD)-related parameters in the SAM-P/8, the SAM-R/1 and the Kunming mice.METHODS: The changes of ethology, neurobiochemistry (true choline esterase, TchE), ultrastructure and gene expression(gene chips) were determined in mice of three groups: SAM-P/8 mice (n=14), SAM-R/1 mice (n=14) and Kunming mice (n=14), which were 6 months old［weight(20±5)g］.RESULTS: The SAM-P/8 mice had the inabilities of learning and memory compared with the SAM-R/1 mice and the Kunming mice (P<0.05). The activity of TchE in the SAM-P/8 mice was higher than that in the SAM-R/1 mice and the Kunming mice (P<0.05). Moreover, neurodegeneration was observed in the hippocampus neuron, and the apoptotic gene expression was up-regulation in mice of SAM-P/8 group. In constrast, neurodegeneration and the up-regulation of the apoptotic gene expression in the SAM-R/1 mice and the Kunming mice were not observed.There were some differences in expression of a few genes between the SAM-R/1 and the Kunming mice except for the apoptotic gene expression.Howerer, There was no difference among abilities of learning and memory, TchE and ultrastructure in SAM-R/1 and Kunming mice.CONCLUSION: The SAM-P/8 mice show many characteristics like Alzheimers disease that are significantly different from those in SAM-R/1 mice and Kunming mice. In some circumstauces, Kunming mice can also serve as control in the AD study. 相似文献
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依据云南气候和昆钢环境状况，提出在昆钢环境治理中，抗污染绿化植物品种的选择原则，并通过昆钢各厂区多年的实地栽培经验总结出在不同区域种植的适宜树种。 相似文献
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Street trees are important foundations of urban sustainability due to the ecosystem services that they provide society and the environment. However, street trees are vulnerable to vandalism and damage, especially when small, which constraints the flow of benefits they provide and also increases the costs of planting programmes. Despite being a common phenomenon, there is limited knowledge regarding the extent of vandalism and the reasons for it. Here we seek to understand the causes and extent of street tree damage in eleven small Eastern Cape (South Africa) towns and to assess the perceptions of residents and officials. The condition of newly planted street trees was assessed in each town and residents were interviewed in the two towns with the highest number of newly planted street trees. Almost half (42%) of recently planted street trees were totally snapped, ranging between 0% and 63% per town. There was no difference in the prevalence of trees being snapped between those with protective structures and those without. Each town used different structures around newly planted street trees, but in only two towns were all the structures intact. The prevalence of damage declined with increasing trunk thickness and increasing town size. According to residents, boredom, misbehaviour, lack of appreciation of trees and collection for wood were the main factors for tree vandalism by people along with damage by livestock. Ward councillors recognised the presence of vandalism, but indicated that it was not a priority topic in their ward meetings. Suggestions by residents to prevent vandalism included: planting in sensible areas, re-designing the protective structures, re-locating livestock and engendering community participation and ownership in all aspects of street tree planting. 相似文献