| 摘要: |
| 以‘香秀’西瓜为材料,研究了无纺布限根栽培对西瓜根域温度、植株生长和果实品质的影响。结果表明:与对照组相比,无纺布限根栽培显著提高了地表下5、15和25 cm处的根域温度,其平均根域温度提高了2.31 ℃。西瓜植株早期的生长过程中茎长、叶片数和相对叶面积与对照相比均有不同程度的提高。西瓜的根系也受到限根栽培的影响,限根组的根系主要分布在地表下28 cm内的耕作层,主根系较短,侧根系发达,单位根域体积内根系密度较大,根系活力高。限根栽培显著改善了果实的品质,果实的可溶性固形物含量、出汁率、Vc含量和类黄酮含量均与对照组达到了差异的极显著或显著水平。无纺布限根栽培对西瓜果实的大小、可滴定酸含量和番茄红素含量均没有显著影响。 |
| 关键词: 西瓜 无纺布 限根 植株生长 果实品质 |
| DOI：10.11841/j.issn.1007-4333.2011.03.014 |
| 投稿时间：2010-08-16 |
| 基金项目:北京市科委科技项目(D0706002040231) |
|
| Root zone temperature,plant growth and fruit quality of watermelonaffected by nonwoven-fabric-root-restriction-cultivation |
|
WANG Can-lei, SUN Liang, LENG Ping, XU Xiao-qian, CUI Meng-meng, LIU Shu-tong
|
| (College of Agronomy and Biotechnology,China Agricultural University,Beijing 100193,China) |
| Abstract: |
| Effect of nonwoven root restriction method on root temperature,plant growth and fruit quality of ‘Xiangxiu‘ watermelon were investigated. Results suggested that this method restriction dramatically increased temperature of the roots around 5－25 cm below the soil surface,with a mean root temperature increase of 2.31 ℃.The stem length,leaf number and relative leaf area of the early stage of plant growth increased by comparing to the control group. Root of watermelon was mainly restricted in cultivated layer,or 0-28 cm below the soil surface.The main root was very short and has a high root density and root activity. Root restriction also improved fruit quality dramatically,for example,the SSC,juice yield,Vc content and flavonoid content were improved under this condition. The significant difference was observed between RR and CK (P＜0.05 or P＜0.01). However,there is no effect on fruit fresh weight,TA and lycopene content. |
| Key words: watermelon nonwovens fabric root restriction plant growth fruit quality |
