Bu çalışma, 2018 yılı bahar üretim döneminde Ordu Üniversitesi Ziraat Fakültesi
Bahçe Bitkileri Bölümü’ne ait ısıtmasız plastik örtülü araştırma serası ve
laboratuvarlarında yürütülmüştür. Çalışmada domates tohumlarına 0, 25, 50 ve 100
ppm paclobutrazol 2 saat süreyle uygulanmıştır. Uygulama yapılmış tohumlar 3:1
oranında torf:perlit karışımı ile doldurulmuş 42 cc hücre hacmine sahip viyollere
15.03.2018 tarihinde ekilmişlerdir. Deneme 3 tekerrürlü tesadüf parselleri deneme
deseninde kurulmuş, her bir viyol parsel kabul edilmiştir. Çalışmada 30.04.2018
tarihinde GA3’ün 0, 50 ve 100 ppm dozları ile salisilik asitin 0, 1.0 mM ve 2.0 mM
dozları yapraktan sprey şeklinde uygulanmıştır. Kalite parametreleri 50., 60., 67.,
74.ve 81. günlerde belirlenmştir. Kalite parametreleri olarak bitki boyu (cm), gövde
çapı (mm), boy/gövde çapı oranı, yaprak sayısı (adet/bitki), yaprak SPAD değeri,
gövde kuru madde oranı (%), yaprak kroma değeri ve yaprak hue açı değeri
belirlenmiştir.
Çalışmada GA3 ve SA deneme sonuçları ayrı ayrı değerlendirlmiştir. Paclobutrazol
bitki boylarında gözlem dönemine ve uygulama dozuna bağlı olarak %24-84
arasında boy kontrolü sağlamıştır. Paclobutrozol etkilerinin zamanla azaldığı
belirlenmiştir. Paclobutrozolun geriletici etkilerini gidermede GA3 uygulamaları SA
uygulamalarına göre daha etkili olmuştur. Yaprak renk değerleri üzerine
paclobutrazol daha koyu bir renk oluşumuna neden olurken, GA3 ve SA daha doygun
yeşil renk oluşumunu sağlamışlardır. Paclobutrazol, GA3 ve SA etkilerine ters yönde
boy/gövde çapı oranını azaltarak daha güçlü fide oluşumunu teşvik etmiştir.,This study was carried out in the non-heating plastic covered greenhouses and
laboratories of the Department of Horticulture, Faculty of Agriculture, Ordu
University during the spring production period of 2018. In the study, 0, 25, 50 and
100 ppm the paclobutrazol were applied to tomato seeds for 2 hours. The applied
seeds were sowed on 15.03.2018 with a 42 cc cell volume filled with peat:perlite
mixture in 3:1 ratio. The experiment was established in the pattern of randomized
plots with 3 replications and each viola was accepted as a parcel. Salicylic acid (0,
1.0 and 2.0 mM) and GA3 (0, 50 and 100 ppm) doses were applied at as a spray to
seedling at 30.04.2018. Quality parameters of the plant height (cm), stem diameter
(mm), height/body ratio, number of leaves (pieces/plant), leaf SPAD value, stem dry
matter rate (%), leaf chroma value and leaf hue angle value was determined on the
50th, 60th, 67th, 74th and 81th days.
GA3 and SA trial results were evaluated separately. Paclobutrazol provided a height
control of 24-84% depending on the observation period and application dose in plant
height. Paclobutrozol effects were decreased in time. GA3 applications were more
effective than SA applications in the reversal effects of paclobutrozole. On leaf color
values, paclobutrazol resulted in a darker color formation, whereas GA3 and SA
produced more saturated green color. Paclobutrazol, by decreasing the length/body
ratio in the opposite direction to the effects of GA3 and SA, has encouraged the
formation of stronger seedlings.
This study was carried out in the non-heating plastic covered greenhouses and
laboratories of the Department of Horticulture, Faculty of Agriculture, Ordu
University during the spring production period of 2018. In the study, 0, 25, 50 and
100 ppm the paclobutrazol were applied to tomato seeds for 2 hours. The applied
seeds were sowed on 15.03.2018 with a 42 cc cell volume filled with peat:perlite
mixture in 3:1 ratio. The experiment was established in the pattern of randomized
plots with 3 replications and each viola was accepted as a parcel. Salicylic acid (0,
1.0 and 2.0 mM) and GA3 (0, 50 and 100 ppm) doses were applied at as a spray to
seedling at 30.04.2018. Quality parameters of the plant height (cm), stem diameter
(mm), height/body ratio, number of leaves (pieces/plant), leaf SPAD value, stem dry
matter rate (%), leaf chroma value and leaf hue angle value was determined on the
50th, 60th, 67th, 74th and 81th days.
GA3 and SA trial results were evaluated separately. Paclobutrazol provided a height
control of 24-84% depending on the observation period and application dose in plant
height. Paclobutrozol effects were decreased in time. GA3 applications were more
effective than SA applications in the reversal effects of paclobutrozole. On leaf color
values, paclobutrazol resulted in a darker color formation, whereas GA3 and SA
produced more saturated green color. Paclobutrazol, by decreasing the length/body
ratio in the opposite direction to the effects of GA3 and SA, has encouraged the
formation of stronger seedlings.
