论文部分内容阅读
以甜椒品种‘苏椒13号’和‘川雄9号’为试材,于2009年在江苏南京采用不同颜色塑料薄膜(红、黄、蓝、绿、紫)进行试验,以透明膜为对照(CK),研究不同色膜的温光效应及对甜椒叶面积指数、产量和果实外观品质的影响。结果表明,两个品种的累积温光效应均以红膜处理最高,定植后120d分别达到118.9和112.5;红膜处理下甜椒叶面积指数最高,蓝膜处理最低;红膜处理的产量也最高,两品种分别比对照高9.8%(苏椒13)和13.4%(川雄9),紫膜处理的产量最低,分别比对照低37.2%(苏椒13)和40.5%(川雄9)。果实肩径、长度、单果重及果皮厚度均以红膜处理最高,紫膜处理最低。两品种果实在各种色膜处理下的采收指数和单位面积果实干物质产量均与冠层截获的温光效应呈线性正相关关系,但‘苏椒13号’的最高采收指数在紫膜处理下的最后一次采收时,而‘川雄9号’的最高采收指数则在红膜处理下的最后一次采收时。研究表明红膜处理利于甜椒果实干物质积累,促进果实产量形成和外观品质的提高,紫膜和蓝膜对产量形成有明显抑制作用。
Taking pepper varieties ’Sujiao 13’ and ’Chuanxiong 9’ as test materials, different color plastic films (red, yellow, blue, green and purple) were tested in 2009 in Nanjing, Jiangsu. Control (CK) was used to study the effects of temperature and light on the different color films and the effects on the leaf area index, yield and fruit appearance quality of sweet pepper. The results showed that the accumulated temperature and light effects of the two cultivars were the highest with the red film treatment, reaching 118.9 and 112.5 after 120 days of planting respectively; the leaf area index of the sweet pepper with the red film treatment was the highest and the blue film with the lowest film thickness; , Respectively. The yield of the two cultivars was 9.8% higher than that of the control (Sujiao 13) and 13.4% (Chuanxiong 9), respectively. The lowest yield of purple membrane was 37.2% (Sujiao 13) and 40.5% (Chuanxiong 9) respectively. Shoulder diameter, length, fruit weight and pericarp thickness were the highest with red membrane treatment, purple membrane treatment lowest. The harvest index and fruit dry matter yield of two varieties of fruit under various color film treatments showed a linear positive correlation with the temperature and light effect intercepted by canopy. However, the highest harvest index of ’Sujiao 13’ At the last harvest under the membrane treatment, the highest harvest index of ’Chuanxiong 9’ was at the last harvest under the red membrane treatment. Studies have shown that red film treatment is conducive to the accumulation of dry matter in sweet pepper fruit to promote the formation of fruit yield and appearance quality, purple and blue film on the yield formation was significantly inhibited.