Greenhouse Nutrient Film Technique Cultivation and Production of Lettuce
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摘要:
目的 鉴选适宜南方薄膜温室内营养液膜(NFT)模式栽植的叶用莴苣品种,为福建省叶用莴苣种质资源推广和新品种引进提供可靠依据。 方法 收集省内外13个性状优良的叶用莴苣种类,在中以示范农场薄膜温室内,采用浅液流水培技术对供试品种采收期的形态指标、产量指标及营养品质进行综合分析。 结果 在形态与产量指标方面,株高以绿神表现最佳,高达29.23 cm,其产量较小叶苦苣、格林、紫雅品种分别显著增加48.69%、57.75%、63.45%,单株产量可达94.13 g,其次为绿玫瑰,单产量可达89.50 g。在营养品质方面,绿玫瑰在可食叶片中的花青素、纤维素含量最高,且硝态氮含量累积最少;可食叶片中光合色素含量以绿神表现最优,抗坏血酸含量以紫霞表现最高,可溶性糖含量以优雅表现最佳。 结论 绿玫瑰具有较高的产量及营养价值,最适宜在南方薄膜温室NFT模式下栽培。 Abstract:Objective Growing varieties of leafy lettuce (Lactuca Sativa) with the nutrient film technique (NFT) in a greenhouse were evaluated for the hydroponic cultivation in southern Fujian. Methods Thirteen varieties of lettuce with desirable qualities were collected from the province and elsewhere for the experimentation. The morphological characteristics, leaf yield, and nutritional quality of each species grown under the NFT system in a greenhouse were monitored for analysis. Results The Lvshen variety attained the greatest plant height of 29.23 cm with a yield of 94.13 g per plant, which was 48.69% higher than that of Xiaoyekuju, 57.75% higher than that of Greekn, and 63.45% higher than that of Ziya. Lvmeigui was the second highest on yield, at 89.50 g per plant. Nutritionally, Lvmeigui had the most anthocyanin and cellulose in edible leaves but least on accumulated nitrate nitrogen among all tested varieties. The greatest content of photosynthetic pigments in leaves was found in Lvshen, that of ascorbic acid in Zixia, and that of soluble sugar in Youya. Conclusion Overall, Lvmeigui showed the most desirable high yield and nutritional value and was considered most suitable among the 13 varieties of lettuce for the greenhouse NFT cultivation in southern Fujian. -
Key words:
- nutrient film technique /
- lettuce /
- yield /
- quality
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表 1 供试品种及其生产商
Table 1. Varieties and producers of lettuce under study
编号 Number 品种 Varieties 生产商 Producers 1 四季 Siji 福建农科农业良种开发有限公司 Fujian Agricultural Variety Development Co., Ltd. 2 波士顿 Boston 北京凤鸣雅世科技发展有限公司 Beijing Fengming Yashi Technology Development Co., Ltd. 3 绿雅 Lvya 上海惠和种业有限公司 Shanghai Huihe Seed Industry Co., Ltd. 4 绿神 Lvshen 上海惠和种业有限公司 Shanghai Huihe Seed Industry Co., Ltd. 5 绿苣 Lvju 上海惠和种业有限公司 Shanghai Huihe Seed Industry Co., Ltd. 6 绿蝶 Lvdie 上海惠和种业有限公司 Shanghai Huihe Seed Industry Co., Ltd. 7 绿玫瑰 Lvmeigui 上海惠和种业有限公司 Shanghai Huihe Seed Industry Co., Ltd. 8 紫雅 Ziya 上海惠和种业有限公司 Shanghai Huihe Seed Industry Co., Ltd. 9 紫艳 Ziyan 上海惠和种业有限公司 Shanghai Huihe Seed Industry Co., Ltd. 10 紫霞 Zixia 上海惠和种业有限公司 Shanghai Huihe Seed Industry Co., Ltd. 11 优雅 Youya 上海惠和种业有限公司 Shanghai Huihe Seed Industry Co., Ltd. 12 格林 Greekn 上海惠和种业有限公司 Shanghai Huihe Seed Industry Co., Ltd. 13 小叶苦苣 Xiaoyekuju 上海惠和种业有限公司 Shanghai Huihe Seed Industry Co., Ltd. 表 2 不同叶用莴苣出苗情况调查表
Table 2. Seedling emergence of various lettuce varieties
编号 Number 品种 Varieties 出苗率 Rate of emergence/% 10月15日 15 October 10月17日 17 October 10月19日 19 October 1 四季 Siji 76.62±0.63 i 82.53±0.03 g 83.76±0.01 g 2 波士顿 Boston 68.75±0.26 j 70.27±0.25 h 74.33±0.01 h 3 绿雅 Lvya 98.85±0.31 b 100.00±0.00 a 100.00±0.00 a 4 绿神 Lvshen 76.60±0.18 i 88.80±0.06 f 91.23±0.02 f 5 绿苣 Lvju 100.00±0.00 a 100.00±0.00 a 100.00±0.00 a 6 绿蝶 Lvdie 82.50±0.06 h 96.84±0.02 c 100.00±0.00 a 7 绿玫瑰 Lvmeigui 85.47±0.50 g 97.54±0.03 b 98.13±0.01 c 8 紫雅 Ziya 96.26±0.04 c 97.53±0.03 b 97.53±0.03 d 9 紫艳 Ziyan 87.53±0.03 f 92.52±0.02 e 93.78±0.03 e 10 紫霞 Zixia 95.30±0.30 d 97.53±0.03 b 97.53±0.03 d 11 优雅 Youya 100.00±0.00 a 100.00±0.00 a 100.00±0.00 a 12 格林 Greekn 100.00±0.00 a 100.00±0.00 a 100.00±0.00 a 13 小叶苦苣 Xiaoyekuju 93.67±0.08 e 96.23±0.02 d 98.76±0.01 b 注:同列数据后不同小写字母表示在0.05水平上差异显著,下同。
Note: The data in the same column with different lowercase letters were with significant differences at the 0.05 level. The same as Table 3–6.表 3 不同品种叶用莴苣形态指标差异
Table 3. Morphological indices of various varieties of lettuce
编号
Number品种
Varieties株高
Plant height/cm展幅
Expansion/cm叶片数
Vane number种类
Description生长类型
Growth type叶色
Leaf colour叶形
Lobate口感
Texture1 四季
Siji21.83±0.06 d 21.50±0.26 e 15.53±0.58 de 意大利
Italy结球型
Nodular type嫩绿色
Peak green近圆形
Near circle脆嫩爽口,微甜 2 波士顿
Boston22.33±0.31 c 23.80±0.56 b 20.00±0.58 c 奶油
Beurre结球型
Nodular type嫩绿色
Peak green倒卵形
Obovate柔软多汁,微甜 3 绿雅
Lvya20.23±0.21 e 23.00±0.61 cd 16.00±1.00 d 奶油
Beurre结球型
Nodular type青绿色
Turquoise椭圆形
Oval质地柔软,微苦 4 绿神
Lvshen29.23±0.25 a 20.40±0.10 f 15.53±0.58 de 罗马
Rome直立型
Vertical type深绿色
Bottle green倒卵形
Obovate脆嫩柔软,微甜 5 绿苣
Lvju20.13±0.15 e 15.93±0.12 h 11.33±0.58 f 皱叶
Wrinkled leaf散叶型
Scattered leaf type黄绿色
Kelly锯齿状
Hackly柔嫩清脆,微甜 6 绿蝶
Lvdie17.53±0.12 g 23.27±0.06 bc 24.67±0.58 ab 奶油
Beurre结球型
Nodular type翠绿色
Emerald圆形
Circular柔中带脆,微苦 7 绿玫瑰
Lvmeigui22.00±0.31 cd 22.50±0.40 d 21.33±0.58 bc 奶油
Beurre结球型
Nodular type鲜绿色
Emerald green近圆形
Near circle柔嫩爽脆,微甜 8 紫雅
Ziya15.20±0.35 i 16.80±0.35 g 10.67±0.58 f 皱叶
Wrinkled leaf散叶型
Scattered leaf type紫绿色
Purple green羽状
Pinniform鲜嫩清香,苦中带甜 9 紫艳
Ziyan24.03±0.15 b 23.83±0.29 b 12.33±0.58 def 罗莎
Rosa散叶型
Scattered leaf type紫红色
Amaranth倒卵形
Obovate质地软滑,微苦 10 紫霞
Zixia14.10±0.17 j 23.50±0.50 bc 13.00±0.58 def 罗莎
Rosa散叶型
Scattered leaf type紫红色
Amaranth锯齿状
Hackly软脆鲜嫩,味苦 11 优雅
Youya17.90±0.17 g 21.30±0.40 e 11.33±0.58 f 皱叶
Wrinkled leaf散叶型
Scattered leaf type亮绿色
Bright green锯齿状
Hackly清脆爽口,微甜 12 格林
Greekn16.13±0.15 h 15.23±0.25 i 12.00±1.00 ef 皱叶
Wrinkled leaf散叶型
Scattered leaf type黄绿色
Kelly羽状
Pinniform香脆多汁,微苦 13 小叶苦苣
Xiaoyekuju18.67±0.58 f 25.37±0.31 a 26.67±0.58 a 皱叶
Wrinkled leaf散叶型
Scattered leaf type绿色
Green羽状
Pinniform脆嫩多汁,味苦 表 4 不同品种叶用莴苣产量差异
Table 4. Leaf yield of various varieties of lettuce
编号
Number品种
Varieties地上部鲜重
Aboveground fresh
weight/g地下部鲜重
Fresh weight under
the ground/g地上部干重
Dry weight of
shoot/g地下部干重
Underground dry
weight/g毛重
Rough weight/g净重
Suttle weight/g净菜率
Net vegetable
rate/%1 四季
Siji80.83±0.68 d 12.93±0.25 e 3.90±0.17 c 0.71±0.04 b 120.70±0.79 c 76.73±0.38 d 0.64±0.00 e 2 波士顿
Boston87.13±0.38 c 18.93±0.85 a 4.30±0.20 bc 0.48±0.02 d 119.43±0.60 d 82.23±0.31 b 0.69±0.00 a 3 绿雅
Lvya68.17±0.32 g 14.00±0.35 d 3.50±0.24 d 0.58±0.06 c 99.00±0.78 f 64.87±0.55 g 0.66±0.01 cd 4 绿神
Lvshen94.13±0.80 a 16.83±0.85 b 8.20±0.44 a 0.92±0.05 a 134.90±0.53 a 89.27±0.31 a 0.66±0.01 bc 5 绿苣
Lvju50.67±0.15 i 15.93±0.12 h 3.40±0.10 d 0.46±0.05 d 75.17±0.12 i 48.70±0.66 i 0.65±0.01 d 6 绿蝶
Lvdie73.43±0.31 e 11.97±0.59 f 4.17±0.29 bc 0.88±0.06 a 100.10±0.26 e 65.93±0.31 f 0.66±0.00 bcd 7 绿玫瑰
Lvmeigui89.50±0.36 b 11.60±0.17 f 4.30±0.10 bc 0.65±0.02 b 122.27±0.21 b 80.20±0.46 c 0.66±0.01 cd 8 紫雅
Ziya34.40±0.26 l 6.93±0.12 h 1.77±0.21 g 0.19±0.00 g 53.67±0.81 l 32.93±0.25 m 0.61±0.01 f 9 紫艳
Ziyan72.50±0.26 f 5.60±0.46 i 4.43±0.15 b 0.33±0.03 f 98.50±0.40 f 68.40±0.35 e 0.69±0.00 a 10 紫霞
Zixia49.97±0.06 i 8.87±0.15 g 2.70±0.10 e 0.32±0.01 f 70.83±0.50 j 47.40±0.20 j 0.67±0.00 b 11 优雅
Youya53.27±0.59 h 8.70±0.20 g 3.27±0.59 d 0.37±0.01 ef 78.33±0.64 h 51.87±0.12 h 0.66±0.01 bc 12 格林
Greekn39.77±0.70 k 17.30±0.36 b 2.17±0.21 f 0.23±0.00 g 61.47±0.49 k 39.03±0.38 l 0.64±0.00 e 13 小叶苦苣
Xiaoyekuju48.30±0.44 j 15.93±0.31 c 3.37±0.25 d 0.40±0.01 e 83.87±0.90 g 45.90±0.90 k 0.55±0.00 g 表 5 不同品种叶用莴苣采收后可食叶片中光合色素含量差异
Table 5. Photosynthetic pigments in harvested lettuce leaves
编号
Number品种
Varieties叶绿素a
Chlorophyl a/(mg·g−1)叶绿素b
Chlorophyll b/(mg·g−1)类胡萝卜
Carotenoid/(mg·g−1)叶绿素总量
Total chlorophyll content/(mg·g−1)1 四季 Siji 0.24±0.00 h 0.06±0.02 cde 0.08±0.02 bcd 0.30±0.09 cde 2 波士顿 Boston 0.10±0.00 j 0.01±0.01 e 0.07±0.02 cd 0.11±0.06 e 3 绿雅 Lvya 0.17±0.00 i 0.04±0.02 de 0.06±0.03 d 0.20±0.12 de 4 绿神 Lvshen 0.93±0.05 a 0.32±0.12 a 0.25±0.03 a 1.25±0.45 a 5 绿苣 Lvju 0.34±0.01 ef 0.11±0.03 cd 0.09±0.03 bcd 0.45±0.12 cde 6 绿蝶 Lvdie 0.36±0.00 def 0.11±0.04 cd 0.10±0.03 bcd 0.46±0.12 cd 7 绿玫瑰 Lvmeigui 0.33±0.00 ef 0.07±0.05 cde 0.08±0.03 bcd 0.39±0.17 cde 8 紫雅 Ziya 0.41±0.03 cd 0.12±0.24 cd 0.09±0.04 bcd 0.53±0.10 bcd 9 紫艳 Ziyan 0.27±0.04 gh 0.12±0.10 cd 0.06±0.01 cd 0.39±0.05 cde 10 紫霞 Zixia 0.31±0.03 fg 0.10±0.01 cd 0.09±0.01 bcd 0.42±0.04 cde 11 优雅 Youya 0.38±0.01 de 0.13±0.03 bc 0.10±0.02 bcd 0.51±0.11 bcd 12 格林 Greekn 0.43±0.01 c 0.14±0.04 bc 0.14±0.03 bc 0.58±0.14 bc 13 小叶苦苣 Xiaoyekuju 0.62±0.07 b 0.21±0.09 b 0.15±0.06 b 0.83±0.32 b 表 6 不同品种叶用莴苣采收后可食叶片中营养品质差异
Table 6. Nutritional quality of harvested lettuce leaves
编号
Number品种
Varieties花青素
Anthocyanin/(mg·g−1)抗坏血酸
Vitamin C/(mg·g−1)可溶性糖
Soluble sugar/%纤维素
Cellulose/%硝态氮
Nitrate nitrogen/(μg·g−1)1 四季 Siji 3.34±0.07 a 0.56±0.00 e 0.27±0.04 bcd 0.01±0.00 ab 24.35±0.22 i 2 波士顿 Boston 3.16±0.10 a 0.50±0.00 f 0.29±0.00 bc 0.00±0.00 b 30.65±0.34 h 3 绿雅 Lvya 2.90±0.03 a 0.48±0.00 g 0.19±0.02 d 0.02±0.01 ab 37.53±0.29 g 4 绿神 Lvshen 3.04±0.60 a 0.56±0.00 e 0.20±0.00 d 0.02±0.00 ab 38.95±0.07 f 5 绿苣 Lvju 3.14±0.29 a 0.45±0.00 h 0.39±0.01 a 0.01±0.00 b 17.95±0.03 k 6 绿蝶 Lvdie 3.39±0.09 a 0.38±0.00 i 0.21±0.02 cd 0.01±0.00 ab 43.79±0.32 e 7 绿玫瑰 Lvmeigui 3.41±0.15 a 0.68±0.00 c 0.26±0.03 bcd 0.02±0.03 a 6.54±0.12 l 8 紫雅 Ziya 2.37±0.61 b 0.58±0.00 d 0.21±0.02 cd 0.02±0.01 ab 199.40±0.37 a 9 紫艳 Ziyan 1.20±0.20 c 1.25±0.00 b 0.29±0.02 bc 0.01±0.00 ab 54.82±0.28 c 10 紫霞 Zixia 1.15±0.06 c 1.33±0.00 a 0.31±0.04 b 0.01±0.00 b 94.51±0.33 b 11 优雅 Youya 3.31±0.26 a 0.24±0.00 l 0.42±0.12 a 0.02±0.00 ab 44.13±0.00 e 12 格林 Greekn 3.34±0.15 a 0.27±0.00 k 0.22±0.02 cd 0.01±0.00 ab 47.26±0.33 d 13 小叶苦苣 Xiaoyekuju 3.39±0.12 a 0.30±0.00 j 0.24±0.05 bcd 0.01±0.01 ab 22.68±0.07 j -
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