不同灌溉方式对茄子生长发育的影响

在日光温室中研究常规灌溉、固定灌溉、交替隔沟灌溉3种灌溉方式对茄子生长和水分利用效率的影响。结果表明:茄子生长初期,固定灌溉茄子的株高最高,常规灌溉的最低;常规灌溉茄子的叶面积最小,交替隔沟灌溉的最大;交替隔沟灌溉茄子的叶片数最多,叶绿素含量最高,常规灌溉的叶片数最少,叶绿素含量最低。生育中、后期,3种处理的叶绿素含量和叶数的变化与生长初期相似,株高是常规灌溉的最高,交替隔沟灌溉的最低。交替隔沟灌溉茄子的光合速率最高,固定灌溉最低。交替隔沟灌溉茄子的产量最高,为19.78kg,比常规灌溉和固定灌溉分别增产19.52%和25.35%。交替隔沟灌溉的水分利用率为21.98%,比常规灌溉和固定灌溉分别提高139.17%和25.39%。

Effect of Irrigation Style on Eggplant Growth

In greenhouse, eggplant growth and water use efficiency were studied under normal irrigation and fixed irrigation and alternate irrigation. The results showed: in initial stages of growth, plant length of fixed irrigation was the tallest, normal irrigation was the shortest in 3 treatment; leaf area of normal irrigation was the smallest, and alternate irrigation was the biggest in 3 treatment; number of leaf and content of chlorophyll under alternate irrigation was the most, and normal irrigation was the fewest. In procreate metaphase and anaphase, varieties of numbers of leaf and content of chlorophyll of eggplant were similar to initial stages of growth,plant length of normal irrigation was the tallest, plant length of alternate irrigation was the shortest. Photosynthetic rate of alternate irrigation was the highest, fixed irrigation was the lowest in all treatment. The yield of eggplant was the highest by 19.78kg in alternate irrigation. Its increased yield was 19.52% and 25.35% than normal irrigation and fixed irrigation. Water use efficiency of eggplant was 21.98% under alternate irrigation. It''s enhanced water use efficiency were 139.17% and 25.39% than normal irrigation and fixed irrigation.