نتایج جستجو برای: low germination and emergence capacity

تعداد نتایج: 16990342  

Salsola turcomanica (Litv) is a widespread wild plant species in Middle Eastern arid and semi-arid areas and is a relatively palatable halophyte species that has low establishment rate in the field. In winter 2017, in order to optimize the germination indices, its seeds were treated by scarification, stratification, scarification after stratification, gibberellic acid, potassium nitrat...

Journal: :تولید گیاهان زراعی 0

laboratory and field experiments were conducted to investigate the relationships between germination characteristics and field emergence in produced seeds of soybean cultivars as affected by under three different soil moisture conditions. the treatments are included water stress [irrigation plants after 50 (normal irrigation), 100 (mild stress), 150 (severe stress) mm evaporation from class a p...

Journal: :چغندرقند 0
علی جلیلیان دانشجوی دکتری زراعت دانشکده کشاورزی دانشگاه تهران داریوش مظاهری اعضای هیات علمی دانشکده کشاورزی دانشگاه تهران رضا توکل افشاری اعضای هیات علمی دانشکده کشاورزی دانشگاه تهران حمید رحیمیان اعضای هیات علمی دانشکده کشاورزی دانشگاه تهران محمد عبدالهیان نوقابی عضو هیات علمی مؤسسه تحقیقات چغندر قند جواد گوهری عضو هیات علمی مؤسسه تحقیقات چغندر قند

to determine suitable planting date and predicting emergence time in field conditions of iranian sugar beet cultivars we need some information including base temperature (t base) and heat units (hu). in this research germination tests were conducted on the seed of seven iranian monogerm sugar beet cultivars at various temperatures (3 to 36 ºc) with 3 ºc intervals. also field emergence was evalu...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - دانشکده کشاورزی 1389

abstract: since sugar consumption is directly related to diabetes and other illnesses such as obesity, the issue that will most heavily dominate the health food market is blood sugar management and low glycemic foods. using calcium chloride and gums such as sodium alginate and low ester pectin as thikener and a high-potency sweetener aspartame we were able to reduce sugar content of sour cherry...

Journal: :Journal of experimental botany 2006
Steven Footitt Julietta Marquez Heike Schmuths Alison Baker Frederica L Theodoulou Michael Holdsworth

Comparative physiological analysis of mutant Arabidopsis seeds under defined environmental conditions was used to analyse the relative contributions of components of peroxisomal beta-oxidation in the control of seed germination potential. The COMATOSE (CTS) and KAT2 loci were shown to play essential roles in regulating germination and establishment potentials, whereas LACS6 and LACS7 loci only ...

Journal: :پژوهش های تولید گیاهی 0

the main objective of this study was using of canonical correlation analysis (cca) to find relations between 15 different variables of seed emergence and seedling growth related characteristics of seven important crop that were classified in three groups. the studied groups of variables were included physical characteristics (seed weight, seed length, seed density, water absorption and water co...

Journal: :چغندرقند 0
علی جلیلیان استادیار مرکز تحقیقات کشاورزی و منابع طبیعی کرمانشاه

in order to further understand the emergence and germination of sugar beet monogerm cultivars under moisture stress, the current study was carried out at three stages. at the first stage, the quality of germination of three monogerm cultivars (rizofort, rasoul and zarghan) were studied under five moisture stress levels (0, -2, -4, -6 and -8 bars) in germinator at 15°c by between-paper method. a...

Journal: :Anais da Academia Brasileira de Ciencias 2009
Asif Tanveer Muhammad A Nadeem Asghar Ali Muhammad Tahir Muhammad S I Zamir

The carry-over effect of sub-lethal herbicides was investigated on the germination of seeds collected from surviving Chenopodium album plants, which had received 1/8, 1/8 twice, 1/8 three times, 1/4, 1/2, 1/1 doses of either pre-emergence ioxynil or post-emergence bentazone in a previous onion (Allium cepa) crop. Seeds were also collected from surviving C. album plants, which had received 1/4, ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده ادبیات و علوم انسانی دکتر علی شریعتی 1393

this study aimed at examining the effects of iranian efl learners’ anxiety, ambiguity tolerance, and gender on their preferences for corrective feedback (cf, henceforth). the effects were sought with regard to the necessity, frequency, and timing of cf, types of errors that need to be treated, types of cf, and choice of correctors. seventy-five iranian efl students, twenty-eight males and forty...

2015
Sandra E Pelc C Randal Linder

Early seedling emergence can increase plant fitness under competition. Seed oil composition (the types and relative amounts of fatty acids in the oils) may play an important role in determining emergence timing and early growth rate in oilseeds. Saturated fatty acids provide more energy per carbon atom than unsaturated fatty acids but have substantially higher melting points (when chain length ...

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