نتایج جستجو برای: sugar beet cultivation is of great importance in isfahan province powdery mildew is a major limiting factor to sugar beet to evaluate powdery mildew status in sugar beet fields
تعداد نتایج: 26370719 فیلتر نتایج به سال:
with the increasing population and the need for more food, as well as with the development of science and technology, human approach to unnatural and often chemical inputs to increase agricultural production has been a great expansion and problems such as increased cancers, chronic diseases has created environmental pollution. implementation of organic organic is a solution to these problems . ...
powdery mildew caused by erysiphe necator schw. is one of the most economically destructive diseases of grapevines all over the world including iran. in this experiment, the effects of powdery mildew on grape yield, sugar and tartaric acid contents of must quality were quantified for different grapes with 14 cultivars of grapes including shahani, kishmishi, rasmi, tokolgan, garashilig, seyrakpo...
textbooks play a crucial role in language learning classrooms. the problem is that among the great quantity of available textbooks on the market which one is appropriate for a specific classroom and a group of learners. in order to evaluate elt textbooks, theorists and writers have offered different kinds of evaluative frameworks based on a number of principles and criteria. this study evaluate...
chapter one is devoted to a moderate discussion on preliminaries, according to our requirements. chapter two which is based on our work in (24) is devoted introducting weighted semigroups (s, w), and studying some famous function spaces on them, especially the relations between go (s, w) and other function speces are invesigated. in fact this chapter is a complement to (32). one of the main fea...
A study was conducted in 2009/2010 cropping season in order to determine energy input/out put and productivity of potato and sugar beet production systems in Isfahan province, Central Iran. The data used in this study was based on data collected from growers by using a face to face survey. Total energy consumption and total out put enegy in potato production systems were calculated to be about ...
climate is one of the most important factors that influence the quality and quantity of crops. understanding the natural features of any region, especially about the climate, can play a major role in making plans and land use planning. sugar beet, is one of the major industrial plants, that in addition to producing one of the most fundamental basic needs of society, namely sugar, it can have ot...
for development of pollinator parent resistant to powdery mildew disease of sugar beet, relatively resistant 14442 population was used. based on resistance index, 50 resisitant plants were selected to produce half sib family(h.s.f). after random pollination between these 50 plants, seed of h.s.f was harvesed. from these 50 plants, only 39 plants had produced enough seed. next year these h.s.f w...
at the present time 33 sugar beet and 7 sugar cane industrial units are active in the country. in 2004, the national sugar production was about 1192 thousand tons, that 55 percent of it was produced from the sugar beet and the rest from the sugar cane. in this investigation the status of sugar beet root and sugar production during last 4 years is discussed. the theoretical capacity of 33 sugar ...
development of resistant variety to powdery mildew (pm) is necessary. therefore, during past years some of the sugar beet genotypes were screened to this disease in kermanshah. one of the genotypes named 14442 showed resistance to pm disease. this genotype with two male sterile lines (ms261 and ms231) was used to determine the number of genes responsible for resistance to disease. crosses betwe...
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