نتایج جستجو برای: tuber diameter
تعداد نتایج: 116502 فیلتر نتایج به سال:
The potato tuber moth, Phthorimaea operculella (Zeller), in tropical and subtropical countries, is the most destructive pest of potato, Solanum tuberosum L. The larvae attack foliage and tubers in the field and in storage. The purpose of this study was to evaluate the efficacy of a Bt-cry5 transgene to control the potato tuber moth in tuber tissues. Tuber bioassays using stored (11-12 mo old) a...
Taro tuber, which has the scientific name of Colocasia esculenta, is grown in Vietnam. The nutritional compositions taro tuber are mostly starch, vitamin, protein, lipid, cellulose, and mineral. purpose this study was to determine changes physicomechanical, nutritional, sensory indicators tubers at different harvest times. were determined three harvesting stages 280, 300, 320 days. As a result,...
Field experiments were conducted at Ebonyi State University, Faculty of Agriculture Research Farm Abakaliki, Nigeria during 2009/10 growing seasons to evaluate the effects of staking and planting dates on the grain/tuber yields of seven accessions of African yam bean (Sphenostylis stenocarpa, Hochst. Ex. A. Rich). The results indicated that all the African yam bean accessions performed better w...
We screened the pharmacological effects of a 50% ethanol extract of Yacon tubers and leaves on spermatogenesis in rats. As a result, we found that Yacon tuber extracts increased sperm number and serum testosterone level in rats. It has been reported that the crude extract of Yacon tubers and leaves contain phenolic acids, such as, chlorogenic acid, ferulic acid and caffeic acid by HPLC/MS analy...
The yield and quality of field crops are affected by abiotic stresses such as water deficit, which can negatively impact crop growth, productivity, quality. However, nanotechnology holds great promise for increasing yield, maintaining quality, thus mitigating stresses. Therefore, the current study was conducted to examine influences 0, 50, 100 mg L?1 zinc oxide (ZnO) nanoparticles 25, 50 silico...
رحمانی ح.ر. و محمدی گل تپه ا. 1395. معرفی شش گونه دنبلان جنگلی . دانش بیماری شناسی گیاهی 5(2):12-1. قارچ های خوراکی که تحت عنوان دنبلان شناخته می شوند از رده آسکومیست های آپوتس دار می باشند. این قارچ ها اندام بارده خود را در سطح یا زیرزمین تولید می کنند و اکتومیکوریزای اجباری گیاهان هستند. جنس tuber از راسته pezizales و رده pezizomycets است. این جنس دارای گونه های متعددی است که در نقاط مختلف ج...
Modification of tuber carbohydrate metabolism by the tuber-specific expression of a yeast invertase targeted to the cytosol or apoplast has previously been demonstrated to have diverse effects on tuber growth and metabolism. In the current study, we generated plants exhibiting tuber-specific expression of the same enzyme targeted to the vacuole. Enzymatic analysis of the carbohydrate levels of ...
To define plant 'nutritional quality' for aphids, the causal basis of the variation in aphid performance between host plants of different developmental ages was explored using the aphids Myzus persicae and Macrosiphum euphorbiae on potato plants (Solanum tuberosum). Both aphid species performed better on developmentally young ('pre-tuber-filling') plants than on mature ('tuber-filling') plants....
3-Hydroxy-3-methylglutaryl coenzyme A reductase (HMGR, EC1.1.1.34), the key enzyme in isoprenoid biosynthesis, was purified from microsomes of potato tuber tissue, and a polyclonal antibody and two monoclonal antibodies against the purified enzyme were prepared. HMGR protein content was measured by immunotitration and radioimmunoassay using these antibodies. HMGR activity was very low in the fr...
Dormancy is one aspect of tuber physiological age that begins with potato tuber initiation. During dormancy, biochemical and physiological processes do occur but they do not trigger immediate morphological changes, yet these processes are relevant for the number of sprouts produced after breaking of the dormancy and for the growth vigour of the seed tuber. This review article reports that dorma...
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