Selection of corn inbred lines, testers, and hybrids adapted to second-crop environments
نویسندگان
چکیده
منابع مشابه
Field screening of experimental corn hybrids and inbred lines for multiple ear-feeding insect resistance.
Identifying and using native insect resistance genes is the core of integrated pest management. In this study, 10 experimental corn, Zea mays L., hybrids and 10 inbred lines were screened for resistance to major ear-feeding insects in the southeastern Coastal Plain region of the United States during 2004 and 2005. Ear-feeding insect damage was assessed at harvest by visual damage rating for the...
متن کاملStudy on gene action and combining abilities for thermotolerant ablilities of corn (Zea mays L.)
High temperature reduces the pollen viability and silk receptivity of corn resulting in poor seed set and reduced yield. Continuously increasing temperature and less frequency and distribution of rainfall coupled with usual canal–closure particularly in Pakistan have significantly been decreasing the grain yield. This problem could be overcome by developing heat tolerant maize hybrids. For this...
متن کاملThermal Starch Properties in Corn Belt and Exotic Corn Inbred Lines and Their Crosses
More knowledge is needed about variability of starch functional traits in adapted and exotic germplasm and possible genetic effects of these traits before conducting rigorous inheritance studies and breeding programs for starch quality. We studied and compared the range of variability for starch functional traits in a set of Corn Belt inbred lines with a set of exotic inbred lines from Argentin...
متن کاملEvaluation of selection indices for drought tolerance of corn (Zea mays L.) hybrids
Drought is one of the major problems affecting crops production, including corn, in many parts of Iran. In order to detect drought tolerant grain corn hybrids, an experiment with twenty corn hybrids was conducted during 2006 in Qom Province, Iran, using a complete randomized block design with four replications, under optimal moisture and drought stress condition. Results showed diversity among ...
متن کاملIN VITRO TECHNIQUES COUPLED WITH IRRADIATION FOR SELECTION OF BASMATI RICE MUTANTS BE'ITER ADAPTED TO SALINE ENVIRONMENTS
Among different doses of gamma rays, 1.5 kR induced 71.84% callus in Basrnati rice in amodified MS medium and 2% redifferentiation under anon-saline environment, 20% callusing response with 7.5%,2.8% and 2.5% redifferentiation was induced by 2.0 kR at electrical conductivity (EC) of 4,s and 6 dS.m of NaCl respectively, in regeneration medium. A non-irradiated non-saline environment reveale...
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ژورنال
عنوان ژورنال: Pesquisa Agropecuária Brasileira
سال: 2020
ISSN: 1678-3921,0100-204X
DOI: 10.1590/s1678-3921.pab2020.v55.01832