|Table of Contents|

Study on Correlation Between the Germination Temperature Index on the Growth of Pepper Seedlings(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2014年19期
Page:
40-43
Research Field:
Publishing date:

Info

Title:
Study on Correlation Between the Germination Temperature Index on the Growth of Pepper Seedlings
Author(s):
GAO Jing-xia; ZHAO Yun-xia; YAN Xiu-juan; WANG Xue-mei
Germplasm Resources Research Institute,Ningxia Academy of Agriculture and Forestry,Yinchuan,Ningxia 750002
Keywords:
germination; temperature; pepper; seedling growth; correlation
PACS:
S 641.304+.3
DOI:
-
Abstract:
Taking pepper variety of ‘Yangjiao pepper 70’as material,effect of different germination temperatures (constant temperature of 15，20，25，30℃ treatment and variable temperatures of 25/15℃ treatment) on the germination of pepper seeds were studied.The results showed that,different germination temperatures on seed germination rate,germination potential,germination index and seedling growth were affected.Under 25℃ germination,germination rate reached 97%,germination potential reached 19%,germination index reached 23.42,and pepper seedling plant height,root length,leaf number reached maximum,the ground part,underground fresh and dry weight got the heaviest respectively,with 18.40 g,9.04 g,and 2.33 g,0.83 g.Under 25/15℃ treatment germination root length was short,number of leaf was little,other temperature on the growth of pepper seedlings did not show significant difference.Effect of different germination temperature on root activity of pepper seedlings were different,under 20℃ and 25℃,pepper seedling root system vitality were the strongest,respectively 108.0 μg.g-1 FW?h-1 and 109.4 μg?g-1FW?h-1,under 30℃ root activity was the weakest,77.0 μg.g-1 FW.h-1.The dry matter content of different germination temperature of pepper seedlings performance was T3（25℃）＞T4（30℃）＞T1（15℃）＞T5（25/15℃）＞T2（20℃）,total chlorophyll content performance was T5＞T1＞T3＞T2＞T4,seedling index performance was T3＞T1＞T4=T5＞T2,G value showed T3＞T1＞T2＞T5＞T4,the root shoot ratio showed T1＞T3＞T4＞T5＞T2；in conclusion,25℃ was the optimum temperature for germination of pepper seeds,the experiment could provide a theoretical basis and technical parameters for pepper intensive germination and seedling in Ningxia area.

References:

[1]梁称福.蔬菜栽培技术:南方本[M].北京:化学工业出版社,2009.
[2]陈殿奎.国内外蔬菜穴盘育苗发展综述[J].中国蔬菜,2000(增刊):4-7.
[3]崔秀敏,王秀峰.黄瓜穴盘育苗基质特性及育苗效果的研究[J].山东农业大学学报,2001,32(2):124-128.
[4]Nishizawa T,Saito K.Effects of rooting volume restriction on the growth and carbohydrate concentration in tomato plants[J].J Amer Soc Hort Sci,1998,123(4):581-583.
[5]李颖,王恒明.不同浸种时间对辣椒种子发芽的影响[J].上海蔬菜,2003(1):23-24.

Memo

Memo:
-
Last Update: 2014-11-25