كليدواژه :
آرژنين و گل ژريرا , شاخص ثبات غشا , سلول و فنيل آلانين , گلوتامين و محلول پاشي
چكيده فارسي :
تعيين روش هاي مناسب براي افزايش كيفيت گل ها، طول دوره گل دهي و ديگر پارامترهاي مرتبط با عملكرد گل هاي گلداني از اهميت ويژه اي برخوردار است. در مطالعه حاضر، اثر استفاده از اسيدآمينه هاي گلوتامين، آرژنين و فنيل آلانين بر خصوصيات فيزيولوژيك، مورفولوژيك، آنزيمي و دوام عمر گل ژربرا رقم sorbet بررسي گرديد. اين پژوهش در بهار سال 1395 در گلخانه اي تجاري واقع در شهرستان پاكدشت به صورت آزمايشي در قالب طرح كاملاً تصادفي با 7 تيمار و در 3 تكرار و هر تكرار حاوي گلدان گل ژربرا رقم Sorbet انجام شد. در اين آزمايش از گلوتامين، آرژنين و فنيل آلانين هركدام با دو غلظت 50 و 100 ميلي گرم در ليتر كه در نهايت با تيمار شاهد (آب مقطر) مورد مقايسه قرار گرفتند استفاده شد. صفاتي چون وزن تر، وزن خشك، تعداد گل، سطح برگ، شاخص ثبات غشاء سلول، آنتوسيانين گلبرگ، آنزيم فنيل آلانين آمونيالياز و ماندگاري گل روي بوته در روز پاياني اندازه گيري و از نظر آماري ارزيابي گرديد. نتايج حاصل از اين تحقيق نشان داد كه تيمار گلوتامين 100 ميلي گرم در ليتر اثر مطلوبي را در بهبود تمامي صفات مورد ارزيابي داشت. تيمار گلوتامين با غلظت 100 ميلي گرم در ليتر با 20 روز، بيشترين و شاهد با 14 روز، كمترين ماندگاري گل روي بوته را داشتند.
چكيده لاتين :
Gerbera with scientific name Gerbera jamesonii belong to
compositae family most important cut flowers all over the
world. In recent years production and attention to it in Iran and
world markets has increase. Amino acids biostimulative role in
plant growth, shoot growth, increase plant resistance in the
event of environmental stresses, accelerating the formation and
development of organs, increase nutrient absorption, increase
chlorophyll and chlorophyll production play. In the present
study, the effect of the amino acids Glutamin, Arginin and
Phenylalanin on physiological characteristics, morphological
and enzymatic were evaluated gerbera flower pot c.v sorbet. In
this experiment Glutamine, Arginin and Phenylalanin each with
two doses of 50 and 100 ppm was use. The treatments were
compared with control treatment(distilled water). This
experiment, A completely randomized experimental design with
7 treatments, 3 replication, each replication contains 3 units on
gerbera flower pot c.v sorbet was performed. Trait evaluated
include the fresh weight, dry weight, number flower, leaf
surface, cell membrance stability index, anthocyanine content,
activity of enzymes phenyl alanine ammonia lyase(PAL) and
longevity of flowers on the plant. this study in the summer of
2016 in commercial greenhouse located in the city PAKDASHT
with an average daily temperature of 18° C and 28° C at night,
relative humidity 60% and light intensity was 300 foot candle
was performed. The results of the research and analysis of
variance table 1 showed that the effect of treatments on all traits
evaluated at different concentrations treatment is significant at
1% level. Glutamine 100ppm treatment and control treatment
showed statistically significant difference with other treatments
Duncan grouping. The result showed that the glutamin treatment
100ppm the greatest effects on improving all the traits than
other treatments. Flower longevity on plant in glutamin 100ppm
20 days and in the control 14 Days. The results of this study
indicate that the use of glutamine as a source of organic nitrogen
plays a role in growth and differentiation of plant cells that
eventually leads to more fresh weight, dry weight and number
of flowers was. The use of glutamine induced physiological
changes in gerbera flowers that stimulate plant growth, increase
cell membrane stability index and petal anthocyanins. N also the
top supplier of high intensity of photosynthesis and thus faster
growth rate and ultimately increase the leaf surface. Glutamine
also increases the PAL activity, which ultimately increases the
strength and durability of gerbera stem on the plant.
