黑龙江肇东市轻盐碱地黑果枸杞引种试验研究

发布时间：2018-05-17 08:25

本文选题：黑果枸杞 + 盐胁迫　；参考：《沈阳农业大学》2017年硕士论文

【摘要】：随着黑果枸杞市场需求量增加,提高其果实品质与产量并扩大可种植范围,为提高黑果枸杞的经济效益奠定基础。本试验对甘肃种源与新疆种源的黑果枸杞种子抗盐碱能力与果实品质进行评价,在黑龙江省肇东市合居乡进行大田示范,从中筛选出生长好且产量高的优势家系。在不同浓度的盐胁迫下,黑果枸杞种子在浓度为25 mmol·L-1时萌发参数最高且高于对照处理,说明在低浓度的盐胁迫下对黑果枸杞种子萌发具有促进作用。在种子萌发过程中各项萌发参数随着浓度的增加而降低,在高浓度胁迫下对种子具有一定的迫害性,阻碍其生长发育。在不同pH值的盐碱胁迫下两种源种子萌发的变化趋势相同并具有显著差异,各项萌发参数随着pH值的增大而降低。在盐胁迫与碱胁迫下甘肃种源的各项萌发参数均高于新疆种源,对比可知甘肃种源种子更适宜在逆境中生长,属于抗逆性强的优势种源。甘肃种源黑果枸杞果实多项营养成分均高于新疆种源,其中钙、锰、锌、原花青素与可溶性总糖含量极显著高于新疆种源(P0.01);镁、钾、钠含量高于新疆种源,但未达到统计学得差异水平。新疆种源黑果枸杞果实铁、铜含量高于甘肃种源。家系编号1、4、13、24、30号为早花家系,此类家系适宜向气候温暖地区进行推广培育;家系编号7、16、22号为晚花家系,此类家系适宜向气候寒冷地区进行推广培育。开花时间较早、生长状态较好且结实量高的1、4、5、7、9、13、16、36号家系为适应性强且长势好的优势家系;编号3、11、31号的家系为生长较差且开花数量少的家系。
[Abstract]:With the increase of market demand, the quality and yield of black wolfberry were increased and the range of planting was expanded, which laid a foundation for improving the economic benefit of black fruit wolfberry. This experiment evaluated the saline-alkali resistance and fruit quality of black fruit Lycium barbarum seeds from Gansu provenance and Xinjiang provenance, and conducted field demonstration in Heju Township, Zhaodong City, Heilongjiang Province, and screened out the dominant families with good growth and high yield. Under different concentrations of salt stress, the germination parameters of Lycium barbarum seeds at 25 mmol L-1 were the highest and higher than that of the control treatment, which indicated that the germination of Lycium barbarum seeds was promoted by low concentration salt stress. In the process of seed germination, the germination parameters decreased with the increase of concentration, and the seeds were persecuted under high concentration stress, which hindered the growth and development of seeds. The variation trend of germination of the two seeds under different pH values was the same and the germination parameters decreased with the increase of pH value. The germinating parameters of Gansu provenance under salt and alkali stress were higher than that of Xinjiang provenance. Compared with Xinjiang provenance, Gansu provenance seed was more suitable for growth under stress, and belonged to the dominant provenance with strong resistance to stress. The contents of calcium, manganese, zinc, procyanidins and soluble sugar were significantly higher in Gansu provenance than in Xinjiang provenance, and the contents of magnesium, potassium and sodium were higher than those of Xinjiang provenance. But did not reach the statistical difference level. The iron and copper contents of black fruit Lycium barbarum of Xinjiang provenance were higher than those of Gansu provenance. Family No. 1, 4, 3, 13, 24, and 30 are early flowering families, which are suitable for extension and cultivation in warm climates, and late flowers in 716 and 22 families, which are suitable for extension and cultivation in cold climates. The families with early flowering time, good growth state and high fruiting quantity were the dominant families with strong adaptability and good growth, and families numbered 3Y111,31 were families with poor growth and few flowering numbers.
【学位授予单位】：沈阳农业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：S567.19

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