نتایج جستجو برای: hypocotyle

تعداد نتایج: 15  

2013
A. Bahrani M. Hagh Joo

Establishment of seedlings at early growth stages of crop plants as one of the most important determinants of high yield is severely affected by soil salinity. Therefore, high germination rate and vigorous early growth under saline soils is preferred. In this study 15 wheat (Triticum aestivum L.) cultivars were used to investigate the effects of three salinity concentrations including 4, 8 and ...

Journal: :حفاظت گیاهان 0
محمد حسن راشد محصل ابراهیم کازرونی منفرد محمد تقی آل ابراهیم

abstract wild lettuce (lactuca serriola) is an annual weed with seed reproduction. an experiment was conducted to evaluate some environmental effects on germination and emergence of this weed. the type of design was completely randomized with four replications in which factors were arranged as factorial. the experiment was carried out with 11 cm petri dishes in a germinator (10 °c) and without ...

Journal: :حفاظت گیاهان 0
سید محمد کاظم تهامی زرندی پرویز رضوانی مقدم

abstract in order to study the effect of different aqueous shoot extracts of four medicinal plants consist of: basil (ocimum basilicum l.), jimson weed (datura stramonium l.), summer savory (satureja hortensis l.) and meliaceae (melia azedarach l.) on seed germination and seedling characteristics of wild oat an experiment was conducted at faculty of agriculture, ferdowsi university of mashhad o...

علی مصطفایی, , مصطفی مطلبی, , اباصلت حسین زاده کلاگر, , محمدرضا زمانی, ,

Plant pathogenic microorganisms produce a variety of enzymes capable of degrading different polysaccharides of the plant cell walls. Pathogens use these enzymes to penetrate and colonize host cells. Polygalacturonases are thought to be the first cell wall-degrading enzymes secreted by pathogens when they grow on plant cell walls. Oligogalacturonic acids with the polymerization degrees of 10 to ...

ژورنال: علوم آب و خاک 2007
علی مصطفایی, , مصطفی مطلبی, , اباصلت حسین زاده کلاگر, , محمدرضا زمانی, ,

Plant pathogenic microorganisms produce a variety of enzymes capable of degrading different polysaccharides of the plant cell walls. Pathogens use these enzymes to penetrate and colonize host cells. Polygalacturonases are thought to be the first cell wall-degrading enzymes secreted by pathogens when they grow on plant cell walls. Oligogalacturonic acids with the polymerization degrees of 10 to ...

Journal: :پژوهش های زراعی ایران 0
روح اله مرادی یاسر علی زاده احمد نظامی حمیدرضا عشقی زاده

poor establishment of seedling due to both drought and lack of water is one of the most important problems in arid and semiarid regions such as iran. so, in order to evaluate the effect of lentil seed size on germination and seedling growth properties affected by drought stress, a completely randomized design with factorial arrangement and 3 replications conducted using two lentils genotypes (r...

2015
Surendra Pratap Singh Sudhir P. Singh Tripti Pandey Ram Rakshpal Singh Samir V. Sawant

Hybrid seeds are used for stimulated crop production, as they harness heterosis. The achievement of complete male-sterility in the female-parent and the restored-fertility in F1-hybrids are the major bottlenecks in the commercial hybrid seed production. Here, we report a male sterility-fertility restoration system by engineering the in most nutritive anther wall layer tapetum of female and male...

Journal: :Annals of botany 2010
Lenka Malíková Petr Smilauer Jitka Klimesová

BACKGROUND AND AIMS Adventitious sprouting from the hypocotyle and roots in monocarpic herbs has been confirmed in previous experimental studies as a means to avoid bud limitation after severe injury in annual and biennial plants. Data regarding the role of adventitious sprouting in natural populations, however, were lacking. The aim of the present study was to assess whether adventitious sprou...

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