摘要
以“京帅”甜瓜为试材，采用无土有机育苗营养基质，研究了20％（T1）、40％（T2）、60％（T3）、809／6（T4）、1009／6（T5）5种不同基质相对含水量对甜瓜穴盘苗叶片水分生理与光合特性的影响，以探究适合新疆戈壁地区设施甜瓜穴盘育苗的适宜基质相对含水量。结果表明：T1处理和T5处理降低了甜瓜叶片的羧化速率，从而抑制了甜瓜植株的光合能力；T1（20%）处理显著降低了甜瓜叶片自由水／束缚水比率、叶绿素a／b值，从而导致其光合作用下降；综合分析试验结果，提出在新疆戈壁地区设施环境下的甜瓜穴盘育苗中水分管理以基质相对含水量60％～80％为宜。
Taking melon variety ＇Jingshuai＇ as test material, with soilless nursery nutrition organic substration, effect of 20% （T1）,40% （T2）,60% （T3）,80% （T4）, 100% （T5） five kinds of water content substrate on physiology and photosynthetic characteristics of melon were studied,to explore suitable substrate water content for melon plug-seedling in Gobi District of Xinjiang Province, The results showed that T1 treatment and T5 treatment decreased the rate of carboxylation of melon leaves, thereby inhibited the photosynthesis of melon plants. While T1 （20%） treatment, significantly reduced free water/bound water ratio, chlorophyll a/b ratio in melon leaves, leading to its decline in photosynthesis. Comprehensive analysis of the test results showed,the proposed facility in the Gobi District of Xinjiang under the management of water melon plug-seedlings,relative water content of 60% to 80% was appropriate.
出处
《北方园艺》
CAS
北大核心
2014年第9期53-55,共3页
Northern Horticulture
基金
新疆自治区"十二五"重大专项资助项目(201130104)
关键词
基质相对含水量
甜瓜
穴盘育苗
叶片水分生理
光合特性
substrate water content
melon
plug-seedling
leaf water physiology
photosynthetic characteristics
