共查询到17条相似文献,搜索用时 824 毫秒
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嘉糯Ⅰ优6号是采用核辐射诱变技术育成的三系籼糯稻,产量高,适应性较广。根据嘉糯Ⅰ优6号双亲的特征特性和2a当地高产制种经验,总结了该组合高产制种技术。 相似文献
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2008和2009年在福建省邵武市共制种嘉糯1优6号(嘉农wxA1/嘉糯恢6号)72.3hm2,平均产量3.375t/hm2。根据制种实践及父母本的特征特性,总结了该组合的高产制种技术。 相似文献
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嘉糯1优2号是福建农林大学作物遗传育种研究所选育的优质、高产杂交糯稻新品种,2009年7月通过国家农作物品种审定委员会审定。根据嘉糯1优2号亲本的特征特性,结合制种生产实践,提出了嘉糯1优2号高产制种技术。 相似文献
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嘉糯1优2号是福建农林大学作物遗传育种研究所选育的杂交糯稻新品种,2009年7月通过国家农作物品种审定委员会审定。根据嘉糯1优2号的特征特性,结合生产实践,建立了嘉糯1优2号高产栽培技术体系。 相似文献
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嘉糯I优6号是福建农林大学作物遗传育种研究所用嘉农WXA1与嘉糯恢6号杂交选育而成的糯稻新品种,2009年通过福建省农作物品种审定委员会审定(闽审稻2009003)。2009年上杭县种子管理站在庐丰乡上坊村作烟后稻示范种植,面积0.4hm2,产量559.9kg/667m2。表现生长整齐,剑叶瓦状直立,株型紧凑,分蘖力较强,穗大粒多,成穗率高,熟期转色佳,抗性好,产量高。适宜在该地区作中稻或低海拔区域作烟后稻与双季晚稻栽培。 相似文献
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河南省鲜食糯玉米新品种的丰产稳产性比较及种植区域分析 总被引:1,自引:0,他引:1
《作物研究》2020,(3)
采用常规高产稳产分析方法和高稳系数法,结合AMMI模型对2017年和2018年河南省7个糯玉米区试参试品种进行比较分析,筛选出高产稳产的糯玉米新品种及其适宜种植区域。结果表明:洛白糯3号是丰产性和稳产性较好的品种,适合河南省内种植,周糯6号是丰产性好、稳产性中等的品种,适合商丘、焦作、南阳等地种植。 相似文献
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用剂量为0.35 kGy的60Co-γ射线辐照保持系粤丰B干种子约0.5 kg,于M2带胚糙米群体获得糯质基因突变体,定名为嘉农wx2B。通过与粤丰A的杂交、回交,育成糯稻不育系嘉农wx2A。除直链淀粉含量差异显著外,嘉农wx2A与粤丰A生育期相同,且农艺性状、花器性状、穗部性状、花粉不育特性以及配合力均十分相似。嘉农wx2A于2008年10月通过福建省科学技术成果鉴定,由其配制的杂交糯稻嘉糯2优06(嘉农wx2A/嘉糯恢6号)具有高产、优质、适应性广等特点。 相似文献
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WANG Hao LIU Xiangchen ZHANG Qiang YU Guilong ZHANG Wendi HUANG Jian ZHU An LIU Lijun 《中国水稻科学》1986,34(5):425-434
【Objective】 The combination of mid-season rice+ratoon rice is a new pattern of rice planting in southern Henan Province. However, the changes in grain yield and quality between the main and ratoon seasons remain unclear. Clarifying the changing law of grain yield and rice quality can lay a theoretical and practical basis for the screening of ratoon rice varieties with higher grain yield and better rice quality in southern Henan Province. 【Method】 In this study, 12 hybrid indica rice combinations suitable for single-cropping rice were used as materials under local high-yield cultivation conditions. The tested combinations were divided into four types according to their yields in main and ratoon seasons: BH, both high grain yields in main and ratoon season; HL, high grain yield in main season and low grain yield in ratoon season; LH, low grain yield in main season and high yield in ratoon season; BL, both low grain yields in main and ratoon seasons. The difference in rice quality was also analyzed. 【Result】 1) The processing quality and appearance quality in ratoon season were significantly improved, however, the protein contents decreased, and the eating quality of rice was improved to different extents as compared with those in main season; 2) Except for BL type (only one combination, Shenliangyou 11), the processing quality of BH and HL was better, and HL has better appearance quality and cooking and eating quality. There was no significant difference in protein contents among different yield types in main season, while in ratoon season, the protein contents in BH were 10.7 % higher than those in HL, and 1.75% lower than those in LH. 3) The effect of daily average temperature after full heading on grain quality was far greater than the sunshine hours, and the relatively low average daily temperature after full heading in ratoon season was the main reason for its better grain quality. 【Conclusion】 Based on higher grain yield and better rice quality, Liangyou 6326, Tianliangyou 616, Guangliangyou 476 and Fengliangyouxiang 1 were suitable varieties for ratoon cultivation in southern Henan Province. 相似文献
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豫南地区头季和再生季水稻产量与品质差异分析 总被引:1,自引:0,他引:1
【目的】 “中稻+再生稻”组合是豫南稻区新的水稻种植模式,但是头季与再生季水稻产量和稻米品质变化尚不清楚。明确其产量和米质变化规律可为豫南地区高产优质再生稻品种选择提供理论与实践依据。【方法】以两优6326等12个适于单季种植的杂交籼稻为材料,在当地高产栽培条件下,依据头季和再生季两季产量将其划分为两季产量均高(双高)、头季稻产量高再生季产量低(头高再低)、头季稻产量低再生季产量高(头低再高)和两季产量均低(双低)等四种类型,并分析了米质的差异。【结果】 1)与头季稻相比,12个组合的再生季稻米加工品质和外观品质显著改善,蛋白质含量降低,稻米食味品质不同程度变优。2)两季不同产量类型之间比较,除双低类型(仅深两优11号一个品种)外,双高类型和头高再低类型加工品质较优,而头高再低类型的外观品质和蒸煮食味品质较优。蛋白质含量在各产量类型头季稻之间无显著差异,而再生季双高类型较头高再低类型高10.7 %,比头低再高类型低1.75 %。3)齐穗后日平均温度对稻米品质的影响远大于日照时数,再生季齐穗后日平均温度较低是其稻米品质优于头季稻的重要原因。【结论】综合产量及品质,两优6326、天两优616、广两优476和丰两优香1号是适于豫南地区的高产优质再生水稻品种。 相似文献
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杂交中稻留桩高度对再生稻米质的影响及其与头季稻米质的关系 总被引:3,自引:0,他引:3
以18个通过审定的三系杂交中稻品种为材料,于头季稻收割时设留高桩(40 cm)和低桩(15 cm)两个处理,研究高桩与低桩对再生稻米质的影响,及再生稻品质与头季稻品质的关系。结果表明,在6项主要品质指标中,再生稻的直链淀粉含量和整精米率2项指标比头季稻优;头季稻留高桩的处理与留低桩的处理相比,再生稻胶稠度和直链淀粉含量显著变优。多数品质指标头季稻与再生稻之间、再生稻不同留桩高度之间呈显著或极显著正相关,头季稻品种品质对再生稻品质有重要影响。 相似文献
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