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影响西瓜种子发芽质量的因素研究 被引量:7
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作者 郑高飞 赵天才 《中国种业》 北大核心 2001年第6期20-21,共2页
关键词 西瓜种子 发芽质量 影响因素 西瓜
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不同处理对观赏南瓜种子发芽质量的影响 被引量:10
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作者 杨江山 李晨 《甘肃农业科技》 2004年第1期27-29,共3页
采用温度、赤霉素 (GA3)和双氧水 (H2 O2 )处理观赏南瓜种子的发芽试验结果表明 :观赏南瓜种子在35℃条件下发芽势最强 ,发芽指数最高 ;GA3和 H2 O2 溶液浸种处理均能够提高观赏南瓜种子的发芽势 ,其中以2 0 0 m g/ L 的 GA3溶液浸种处... 采用温度、赤霉素 (GA3)和双氧水 (H2 O2 )处理观赏南瓜种子的发芽试验结果表明 :观赏南瓜种子在35℃条件下发芽势最强 ,发芽指数最高 ;GA3和 H2 O2 溶液浸种处理均能够提高观赏南瓜种子的发芽势 ,其中以2 0 0 m g/ L 的 GA3溶液浸种处理的发芽势和发芽指数最高 ;以 10 m g/ L 的 H2 O2 溶液浸种处理的发芽势和发芽指数最高 ,温度和 GA3、H2 O2 浸种的各处理对发芽率都没有明显的影响。 展开更多
关键词 观赏南瓜种子 温度 赤霉素(GA3) 双氧水(H2O2) 发芽质量
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离子注入对杉木种子发芽质量及保护酶活性的影响
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作者 张斌 《种子》 北大核心 2017年第9期22-26,共5页
为探索不同离子源对杉木种子发芽生理及保护酶活性的影响,采用氮、钛2种离子源,以当年生杉木优良种子为试材开展种子发芽生理及保护酶活性变化规律的研究。结果表明:氮、钛2种离子注入杉木种子后,均能显著提高种子的发芽质量,其中发芽... 为探索不同离子源对杉木种子发芽生理及保护酶活性的影响,采用氮、钛2种离子源,以当年生杉木优良种子为试材开展种子发芽生理及保护酶活性变化规律的研究。结果表明:氮、钛2种离子注入杉木种子后,均能显著提高种子的发芽质量,其中发芽率提高18.85%~20.00%,发芽整齐性提高16.83%~34.67%,种子活力指数提高43.47%~57.44%;对种子的质膜透性及酶活性影响,钛离子注入的效果强于氮离子注入,MDA含量、SOD、POD活性分别比氮离子注入处理高出16.82%、29.22%、12.29%,而CAT含量相对降低了7.69%,均存在显著性差异。 展开更多
关键词 杉木 离子注入 发芽质量 酶活性
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当归果翅对种子吸水与发芽进程的影响 被引量:2
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作者 米永伟 龚成文 +1 位作者 王国祥 漆永红 《植物研究》 CAS CSCD 北大核心 2021年第2期174-179,共6页
研究当归果翅对其种子吸水及发芽进程的影响,旨在为当归规范化栽培提供理论和技术依据。以当归的双悬果果实和去翅种子作为试验材料,对其千粒重、含水量、体积、容重和吸水率进行测定,并在自然室温条件下进行种子发芽试验。结果表明:①... 研究当归果翅对其种子吸水及发芽进程的影响,旨在为当归规范化栽培提供理论和技术依据。以当归的双悬果果实和去翅种子作为试验材料,对其千粒重、含水量、体积、容重和吸水率进行测定,并在自然室温条件下进行种子发芽试验。结果表明:①当归双悬果去除果翅后,其千粒重减少了46.87%(P<0.01),体积减少了90.78%(P<0.01),容重增加了475.92%(P<0.01),含水量增加了20.15%(P<0.05);②当归果翅抑制了种子吸水吸胀的能力,果翅去除后能在2.48 h内进入稳定期,较去翅前提前了3.38 h,且吸水过程符合逻辑斯蒂方程;③当归果翅对种子发芽具有显著影响,果翅去除后发芽势、发芽率和发芽指数较未去翅种子分别提高了256.7%、12.28%和27.77%,均达到了极显著水平(P<0.01)。当归双悬果去除果翅后,减小了种子体积和重量,并促进了种子吸水吸胀能力,同时还有效地提高了种子的发芽质量。建议在生产中以去翅种子作为播种材料进行播种。 展开更多
关键词 当归 果翅 种子特性 吸水速率 发芽质量
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影响水稻种子发芽的主要因素及控制途径 被引量:9
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作者 周军 周建明 《安徽农业科学》 CAS 2014年第12期3520-3523,共4页
从水稻种子收获、加工、贮藏阶段及水稻种子浸种和催芽阶段分析苏州市当前水稻种子发芽质量现状;就水稻种子生产、加工过程中的收获、烘干、贮藏和浸种等方面开展一系列试验,明确其对水稻种子发芽的影响程度,找出克服或改进操作方法的途... 从水稻种子收获、加工、贮藏阶段及水稻种子浸种和催芽阶段分析苏州市当前水稻种子发芽质量现状;就水稻种子生产、加工过程中的收获、烘干、贮藏和浸种等方面开展一系列试验,明确其对水稻种子发芽的影响程度,找出克服或改进操作方法的途径;在此基础上,结合实际管理,提出水稻种子发芽质量的控制途径,包括严格按照有关技术规程和标准进行生产、加工和使用,完善检验仪器设备、加强种子检验力度、健全水稻种子质量全称监控机制,积极开展技术研究,完善技术指导服务体系。 展开更多
关键词 水稻种子 发芽质量 影响因素 控制途径
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利用微生物发酵床养猪垫料制备蔬菜育苗基质的研究 被引量:16
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作者 陈燕萍 肖荣凤 +3 位作者 刘波 唐建阳 蓝江林 史怀 《福建农业学报》 CAS 北大核心 2015年第8期802-809,共8页
为将农业副产物——微生物发酵床养猪垫料废弃物(简称垫料)替代草炭应用于新型育苗基质,拟建一套通过垫料浸提液快速筛选基质配方的方法。将2种不同使用年限的垫料分别提取浸提液并梯度稀释后检测其对甜瓜、黄瓜、白菜、甘蓝、番茄和辣... 为将农业副产物——微生物发酵床养猪垫料废弃物(简称垫料)替代草炭应用于新型育苗基质,拟建一套通过垫料浸提液快速筛选基质配方的方法。将2种不同使用年限的垫料分别提取浸提液并梯度稀释后检测其对甜瓜、黄瓜、白菜、甘蓝、番茄和辣椒6类种子的发芽影响;同时参照浸提液稀释浓度,用垫料与椰壳粉按比例配制成基质,穴盘育苗检测基质对种苗生长的影响;分析2个试验之间的相关性。结果表明:供试基质各理化性质基本符合理想基质要求。最适宜种子发芽的浸提液质量分数均为30%,发芽率都在97%以上;同时最适宜种苗生长的基质中垫料含量为30%(体积比),出苗率均达85%以上。相关性分析表明:垫料浸提液对种子的发芽率、发芽指数、活力指数与基质对种苗的出苗率和成苗率具显著正相关性。由此推导筛选基质配方的快速方法:通过检测不同浓度的垫料浸提液对作物种子的发芽影响,筛选最适种子生长的浓度,依据该浓度推导最佳基质配方中垫料含量。 展开更多
关键词 微生物发酵床 养猪垫料 育苗基质 穴盘育苗 种子发芽质量
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Importance of the Role of Gibberellic Acid and Potassium Nitrate in Seed Germination Habanero
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作者 Oscar Gabriel Villegas-Torres Martha Ldla Dommguez-Patino +3 位作者 Carlos Manuel Acosta-Durfin HectorSotelo-Nava Jose Daniel Lopez-Gomez Guillermo Flores-Sfinchez 《Journal of Chemistry and Chemical Engineering》 2013年第2期145-153,共9页
The habanero chili (Capsicum chinense Jacq.) is a species of great demand in the domestic and international markets. One problem in the cultivation is low percentage of seed germination. There is little information ... The habanero chili (Capsicum chinense Jacq.) is a species of great demand in the domestic and international markets. One problem in the cultivation is low percentage of seed germination. There is little information on the use of promoters and imbibition time to increase this parameter, without compromising the quality of seedlings. In this context, authors assessed the independent effect of GAs (gibberellic acid) and KNOs at concentrations of 0, 100, 200, 300, 400 and 500 mg·L1. Seeds without preconditioning were the witness. The experimental unit was a Petri dish with 50 seeds on filter paper placed equidistant. There were three replicates per treatment and the experimental design was randomized complete block. Imbibition time was 24 h. The experimental units were kept in an incubator at 22 ± 2 ℃. From the time of planting and for periods of 24 h for 14 d, experimental units were reviewed to determine the time at the beginning of germination and the total cumulative percentage. The authors also determined the number of normal and abnormal seedlings, the length of hypocotyl and radicle, weight of fresh and dry matter of seedlings. On the fifth day after sowing in vitro, concentrations of 500 mg·L^-1 of GAs, 300 and 400 mg·L^-1 KNO3, increased 208% the percentage of seed germination of habanero chile. On day 14 after sowing in vitro concentrations of 500 mg·L^-1 GA3, 300 and 400 mg·L^-1 KNO3, increased 23% normal seedlings and 40% dry matter thereof, with respect to seeds obtained without preconditioning. Unconditioned seeds before sowing produced 125% more seedlings. 展开更多
关键词 IMBIBITION HYPOCOTYL RADICLE dry matter fresh matter.
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Influences of Temperature Regime on Germination of Seed of Wild Soybean(Glycine soja)
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作者 LIAO Fang-lei JIANG Wu ZHENG Yue-ping XU Hang-lin LI Li-qing LU Hong-fei 《Agricultural Science & Technology》 CAS 2011年第4期480-483,540,共5页
As an important plant species with high protein contents,wild soybean(Glycine soja),has drawn much attention and appeared to be useful for the genetic improvement of soybean germplasms.Since temperature is one of the ... As an important plant species with high protein contents,wild soybean(Glycine soja),has drawn much attention and appeared to be useful for the genetic improvement of soybean germplasms.Since temperature is one of the numerous environmental factors affecting the germination of most plants,an experimental study was carried out to determine the effect of temperature on germination of wild soybean(G.soja)seeds.Germination test was conducted by setting up thirty-six constant and alternating temperature regimes,ranging from 5 to 40 ℃(16 h night/8 h day).Responses in germination rate to these temperature regimes were then used to construct a quadratic response surface,giving estimated germination rates with confidence intervals at P ≤ 0.05.The results showed that germination capacity was significantly greater while exposed to constant temperatures of 25 ℃,and under the alternating temperature regime the optimum temperature occurred at the 20/25,25/25,25/30 ℃ regime(16 h/8 h)with the amplitude widened from 0 to 5 ℃.Together with regional monthly climate data,these results could be used to improve and promote the cultivation of wild soybean(G.soja),making it available to develop the location-specific optimum seeding time and to apply weed-control treatments. 展开更多
关键词 Wild soybean(Glycine soja) Diurnal temperature regimes Mean temperature Germination rate Quadratic response surface CULTIVAR
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Effect of germination on the nutritional quality of Pearl millet
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作者 Magdi Abdalwahab Osman 《Journal of Agricultural Science and Technology》 2009年第8期1-7,共7页
Changes in proximate composition, trypsin inhibitor activity, phytic acid, tannins, in vitro protein digestibility and amino acids content of Pearl millet were investigated after germination for 5 days. Germination si... Changes in proximate composition, trypsin inhibitor activity, phytic acid, tannins, in vitro protein digestibility and amino acids content of Pearl millet were investigated after germination for 5 days. Germination significantly increased protein content of pearl millet, with a parallel decrease in lipid and carbohydrates. Trypsin inhibitor activity and the phytic acid content showed significant decrease whereas tannin content increased after 5 days germination. In vitro protein digestibility (IVPD) was significantly decreased with germination, suggesting that tannins may be responsible for enzymes inhibition. Amino acid analysis revealed significant increase in essential amino acids and none essential amino acids. 展开更多
关键词 Pearl millet GERMINATION trypsin inhibitor phyticacid: tannins: protein digestibility amino acids
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