Journal of Maize Sciences 

About: Journal of Maize Sciences is an academic journal. The journal publishes majorly in the area(s): Population & Germplasm. It has an ISSN identifier of 1005-0906. Over the lifetime, 629 publications have been published receiving 1426 citations.

Germplasm Base of Maize Breeding in China and Formation of Foundation Parents

Abstract: Based on retrospective review on germplasm sources of maize breeding in China,i.e.local landraces,overseas inbred lines,overseas hybrids and populations,it was suggested that a major of temperate inbred in China could be divided into six groups,that was,Tangsipingtou,Lancaster,Lancaster-like,PA,PB and PC.The foundation parents used in maize breeding included Dan 340,Huangzaosi,Zi330,Mo17 and Ye478 etc.In this paper,directions and priorities of research on germplasm resources and foundation parents were also proposed.

Effects of Plasma Treatment on Maize Seeding Resistance

Abstract: Resistances of maize seeding under salt and cold and drought stress were investigated seed treated by different dose 0.5A(T1), 1.0A(T2), 1.5A(T3), 2.0A(T4) the plasma. The results indicated that maize seed treated by the plasma improved the resistantance of stress of maize at seeding stage. Compared with the control, soluble sugar content of maize seeding leaf was increased average 5.5% by the plasma treatment under drought stress, proline content increased average 24.7%, peroxidase(POD) activity improved average 33.3%, electrolytes leakage rate decreased average 20.9%. The dose of 1.5A was the most significant dose, which can be the primary treatment dose in improving resistance of maize.

QTL Analysis for Plant Height and Leaf Angle by Using Different Populations of Maize

Abstract: Quantitative trait loci(QTL) analysis for some important agronomic traits(plant height,ear height and leaf angle) were carried out,using SSR markers and three F2:3 populations(H21×Mo17,Zi330×K36 and B73×L050) in order to understand the genetic and molecular mechanisms of these traits.Eighteen QTL were detected for plant height,twelve QTL for ear height and nine QTL for leaf angle.Some of these QTL were located within the same chromosome regions,and the peaks of some QTL regions overlaid.In addition,it was found that some QTL were located in the same regions with known qualitative genetic loci affecting these traits.

Studies on Maize Small Area Super-high Yield Trails and Cultivation Technique

Abstract: Most of the 39 maize super-high yield plots emerged in 2006 - 2007 were located in the high elevation regions(40°N - 43°N) which were characterized by abundant sunlight and large temperature difference between day and night. In order to achieve the yield level of 15 000 kg/ha, the suitable yield components of super-high yield plots would be 79 725 - 84 630 ears/ha, 560 - 588 kernels per ear, the 1 000-kernel weight and the total kernel weight per ear would be 347 - 359g, 200 g, respectively. The corresponding cultural practices included the selection of suitable planting regions and superior varieties, reasonably dense planting, scientific fertilizer application and timely irrigation.

Analysis on Yield Structural Model and Key Factors of Maize High-yield Plots

Abstract: A total of 41 maize high-yield plots exceeded the yield level of 15 000 kg/ha,and three newhighlights presented in 2008.First,the number and area increased remarkably.Second,most high-yield plots distributed in Inner Mongolian and Loess Plateaus.Third,maize high-yield plot appeared for the first time in Sichuan province which is characterized by higher temperature and less sunlight radiation.The yield structural model of 41 maize high-yield plots was 88 110 ears/ha,530 kernels per ear,the 1 000-kernel weight and the grain weight per ear were 368.3 g and 191.4 g,respectively.The yield level mainly determined on the kernel number and grain weight per ear,and increasing the kernel number was the key to enhance the grain weight per ear.The light and temperature condition,cultivar and planting density were yield determinant factors in maize production.