an evaluation of storage life in kiwifruit cv hayward as based on mineral composition of fruitlets and of mature fruits
نویسندگان
چکیده
leaf analysis is a general method of estimating the fertilizer needs in fruit trees, but there exists a limited correlation between it and fruit quality. throughout the present study, fruits were harvested 10 weeks following full bloom and at the commercial maturity (6.2 brix) stages from thirteen different commercial kiwifruit orchards that had been fertilized with different fertilizers, the experiment being carried out in the east of guilan province. following harvest, such mineral elements as nitrogen, potassium, phosphorus, calcium and magnesium, dry matter and as well fruit tissue firmness(just in second harvest) were assessed. for an evaluation of the storage life, mature fruits were transferred to cold storage of 0 ºc temperature and 90-95% relative humidity, with fruit tissue firmness being evaluated after 105 days past of storage. results showed significant correlations between fruit tissue firmness (at harvest) and potassium content in fruitlets and between fruit firmness and calcium, nitrogen, as well as dry matter content in mature fruits. there was a significant correlation observed between fruit firmness at the end of storage time and potassium as well as nitrogen content in fruitlets, and also between calcium, nitrogen contents and dry matter in mature fruits. fruits with higher firmness at harvest time had maintained a higher firmness at the end of their storage period. also, according to cluster analysis, the kiwifruit orchards were divided into two main groups. it could finally be concluded that the postharvest behavior of kiwifruits can be evaluated through a determination of the mineral compositions of fruitlets and of the mature fruits.
منابع مشابه
histological evaluation of the effect of three medicaments; trichloracetic acid, formocresol and mineral trioxide aggregate on pulpotomized teeth of dogs
چکیده ندارد.
15 صفحه اولan investigation into iranian teachers consistency and bias in evaluation of students writings
while performance-based language assessment has led to an increased authenticity and content validity in the practice of writing assessment, the reliability of ratings has become a major issue. research findings have shown different reactions by native english speaker (nes) and non-native english speaker (nns) teachers to students’ writings. the focus of this study is on investigating whether i...
: the effect of sericin levels (silk glue protein) on rate of in vitro maturation, fertilization and culture of sheep oocytes
هدف از آزمایش اول بررسی اثر سطوح مختلف سریسین [0 (control), 0.1, 0.5, 1.0, 2.5 %] افزوده شده به محیط , ivm بر cumulus cell expansion، بلوغ هسته و توسعه متوالی جنین، در گوسفندان نژاد سنجابی در فصل تولید مثلی می باشد. از سرگیری میوز به وسیله خارج شدن اولین پولار بادی اندازه گیری و هم چنین درصد رسیدن جنین های دو سلولی به مرحله کلیواژ و بلاستوسیت نیز به عنوان نشانه ای از میزان شایستگی توسعه اولیه ج...
effect of summer pruning and spray with calcium on mineral composition and fruit quality of kiwifruit cv. hayward
summer pruning and calcium spray could improve kiwifruits quality. in this study, effect of summer pruning in two times, 2 and 15 days after petal fall alone or in combination with %1 calcium chloride spray on fruit quality and mineral elements contents of ‘hayward’ kiwifruit was investigated. calcium sprayed four times 90 days after petal fall with 15 days intervals. the results showed that su...
متن کاملمنابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
علوم باغبانی ایرانجلد ۴۴، شماره ۴، صفحات ۴۳۱-۴۴۱
کلمات کلیدی
میزبانی شده توسط پلتفرم ابری doprax.com
copyright © 2015-2023