نتایج جستجو برای: lack of good varieties grown genetically
تعداد نتایج: 21190459 فیلتر نتایج به سال:
No trials are currently conducted at SASEX to screen genotypes for resistance to ratoon stunting disease (RSD), a disease that is well established in most sugarcane growing regions of the world and considered to cause more yield losses worldwide than any other sugarcane disease. In South Africa, field trials have demonstrated that yield reductions under rainfed conditions can be as high as 40% ...
for maximum impact, high yielding improved varieties with significant yield advantages must be targeted to farmers and localities that value this trait most. explaining farmers’ demand for yield can serve as a means of targeting the development and dissemination of high yielding varieties. this paper analyzes data collected from 395 farmers in northern ethiopia using a zero-limit tobit regressi...
colonialism is an important factor in cultural production and many of cultural constructs all over the world. english and english language teaching are at the center of the contemporary world. postcolonial literature, the genre achebe exercised, is a kind of historical text which has become central to different debates and criticisms. in this thesis, different elements related to the colonial...
Crops grown from seedcane ofNC031 0, NC0376 and N.I2 derived from a tissue culture process were compared with crops grown from conventional.seedcane in fi.eld trials at two sites. The use ofseedcane denved from the tissueculture process resulted in the plant crops of all three. varieties at both trial sites having increased stalk populations and reduced cane and sucrose yields. The results indi...
Given a family of Abelian varieties over a positive-dimensional base, we prove that for a sufficiently general curve in the base, every rational section of the family over the curve is contained in a unique rational section over the entire base. 1. Main results sec-intro The starting point for this article is the following theorem. Theorem 1.1. [GHMS05, Theorem 6.2] Let B be a smooth, quasi-pro...
In order to promote the use of lupin in pig nutrition, in this research the nutritional characteristics (i.e. dietary fibre, alkaloid and fatty acid profile) and the in vitro gas production of 12 lupin varieties grown in the Mediterranean basin and belonging to three lupin species (Lupinus albus, Lupinus angustifolius and Lupinus luteus) were assessed. Four varieties of L. albus (Asfer, Lublanc...
Ian McEwan’s novel Enduring Love foregrounds the protagonists’ failed construction of romantic love and illustrates fragility Joe Clarissa’s on one hand destructive forces Jed’s homosexual for other hand. In light Patrick Hogan’s componential statement love, this paper seeks to clarify how sexual desire system, reward attachment system participate in collapse as well make out why Jed can be ove...
Current efforts to grow the tropical oilseed crop Jatropha curcas L. economically are hampered by the lack of cultivars and the presence of toxic phorbol esters (PE) within the seeds of most provenances. These PE restrict the conversion of seed cake into animal feed, although naturally occurring 'nontoxic' provenances exist which produce seed lacking PE. As an important step towards the develop...
The water availability at early phenological stages is critical for crop establishment and sugarcane varieties show differential performance under drought. Herein, we evaluated the relative importance of morphological and physiological plasticity of young sugarcane plants grown under water deficit, testing the hypothesis that high phenotypic plasticity is associated with drought tolerance. IACS...
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