YAN Changwei,WANG Jianyu,DUAN Xiangkun,et al.Effects of Density on Dry Matter,Photosynthetic Traits and Yield of Zucchini[J].Northern Horticulture,2021,(14):7-13.[doi:10.11937/bfyy.20204704]
密度对籽用西葫芦干物质、光合性状和产量的影响
- Title:
- Effects of Density on Dry Matter,Photosynthetic Traits and Yield of Zucchini
- Keywords:
- density; zucchini for seeds; dry matter; photosynthetic character; yield
- 文献标志码:
- A
- 摘要:
- 以籽用西葫芦“籽冠8号”“籽冠A11”“籽冠D5”“瑞丰9号”为试材，每个品种设置3个密度3.00万、3.75万、4.50万株·hm-2，分别对品种的干物质量、果实性状、籽粒性状、蒸腾速率（Tr）、气孔导度（Gs）、胞间CO2浓度（Ci）和产量等指标进行测定比较，以期筛选出兼顾优良性状和高产的最〖JP+2〗适宜种植密度，为籽用西葫芦进一步规范化种植和高产高效提供参考依据。结果表明：随着密度的增加，品种的干物质量先增加，在密度Ⅱ 3.75万株·hm-2时达到最大，分别为547.15、558.26、527.19、536.24 g·株-1，随后随着密度的增加而降低；品种的蒸腾速率、气孔导度呈现〖JP2〗逐渐降低的趋势，具体表现为密度Ⅰ>密度Ⅱ>密度Ⅲ，各密度处理差异显著。随着密度的增加，品种的胞间CO2浓度呈现逐渐增加的趋势，具体表现为密度Ⅲ>密度Ⅱ>密度Ⅰ，各密度处理差异显著；密度对品种的果实性状和籽粒性状均没有显著影响；密度对品种产量影响有显著差异，密度Ⅱ 3.75万株·hm-2时各品种产量最大分别为2 161.08、2 027.68、1 907.62、2 107.72 kg·hm-2。综上，短蔓品种选择“籽冠8号”，长蔓品种选择“瑞丰9号”，密度Ⅱ3.75万株·hm-2时品种的干物质、品质、光合特性和产量均达到较优水平。
- Abstract:
- Taking ‘Ziguan No.8’‘Ziguan A11’‘Ziguan D5’‘Ruifeng No.9’ as test materials,varieties of each set of three kinds of density of 30 000,37 500,45 000 plants·hm-2,respectively,the quality of varieties of dry matter,fruit character,seed properties,transpiration rate (Tr),stomatal conductance (Gs),intercellular CO2 concentration (Ci) and the production index were measured and compared,in order to screen out good character and high yield of the optimum planting density,hoist further standar dization for seed planting and provide reference for high production and efficiency.The results showed that with the increase of density,the dry matter mass of the varieties increased first,reaching the maximum of 547.15,558.26,527.19 g·plant-1 and 536.24 g·plant-1 at the density Ⅱ 37 500 plants·hm-2,and then decreased with the increasing of density.Transpiration rate and stomatal conductance of cultivars showed a trend of gradual decrease,which was embodied in densityⅠ>density Ⅱ>density Ⅲ and the treatment of each density was significantly different.With the increase of density,intercellular CO2 concentration of different varieties showed a trend of increasing gradually,which was embodied in density Ⅲ>density Ⅱ>density Ⅰ,there were significant differences among the density treatments.There was no significant effect of density on fruit and grain characters.There were significant differences in the effect of density on the yield of varieties.When the density Ⅱ was 37 500 plants·hm-2,the maximum yield of each variety was 2 161.08,2 027.68,1 907.62 kg·hm-2 and 2 107.72 kg·hm-2,respectively.To sum up,the dry matter,quality,photosynthetic characteristics and yield of the varieties with the density of Ⅱ37 500 plants·hm-2 were all superior when the variety of short vine was selected as seed ‘Ziguan No.8’ and the variety of long vine was selected as ‘Ruifeng No.9’.
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备注/Memo
第一作者简介：闫长伟（1988-），男，本科，助理研究员，现主要从事籽用瓜类新品种引育及栽培技术等研究工作。E-mail：2425844352@qq.com.责任作者：王志鹏（1984-），男，本科，副研究员，现主要从事甜瓜育种及栽培技术、籽用葫芦新品种引进及高产栽培技术研究示范等工作。E-mail：673832383@qq.com.基金项目：新疆生产建设兵团财政科技计划资助项目（2020CB009）。收稿日期：2020-11-09