Combining Ability for Seedling Root System Size and Shoot Vigor in Interspecific Blueberry Progenies
نویسندگان
چکیده
منابع مشابه
Genetic analysis for rice seedling vigor and fine mapping of a major QTL qSSL1b for seedling shoot length
Seedling vigor is an important agricultural trait as direct-seeded rice technology becomes widely applied. In order to investigate the genetic mechanisms underlying seedling vigor in rice, seeds of 132 recombinant inbred lines (RILs) derived from 93-11 and PA64s, harvested from Lingshui and Hangzhou were cultivated in the nutrient solution, and four indices for seedling vigor were measured incl...
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We present a model for the evolutionary dynamics of seed size when there is a trade-off between seed size and seed number, and seedlings from large seeds are better competitors and have a higher precompetitive survival than seedlings from small seeds. We find that strong competitive asymmetry, high resource levels, and intermediate harshness of the precompetitive environment favor coexistence o...
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Early vigor is an imperative trait and its role become more important under drought stress condition. Genotypes with better early vigor cover above the soil plane, reduce evaporation of soil surface and increase weed competitiveness. In this research, a half diallel mating design was generated from crosses between seven bread wheat to study the genetic of early vigor. Parents and F1 progenies w...
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rootcollar diameter as the standard, nondestructive measure of seedling quality. Other nondestructive measures of seedling quality would be valuable. One option, root-bound index (RBI), reflects the ratio of rootcollar and cavity diameters (South et al. 2005, South and Mitchell 2006). This variable is an indirect, nondestructive measure of how well the cavity accommodates both the taproot and f...
متن کاملCombining enhanced root and shoot growth reveals cross talk between pathways that control plant organ size in Arabidopsis.
Functionally distinct Arabidopsis (Arabidopsis thaliana) genes that positively affect root or shoot growth when ectopically expressed were combined to explore the feasibility of enhanced biomass production. Enhanced root growth resulting from cytokinin deficiency was obtained by overexpressing CYTOKININ OXIDASE/DEHYDROGENASE3 (CKX3) under the control of the root-specific PYK10 promoter. Plants ...
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ژورنال
عنوان ژورنال: Journal of the American Society for Horticultural Science
سال: 1994
ISSN: 0003-1062,2327-9788
DOI: 10.21273/jashs.119.4.793