You have free access to this content drought-induced changes in anthesis-silking interval are related to silk expansion: a spatio-temporal growth analysis in maize plants subjected to soil water deficit. Forecast daily high temperatures every day this week hover just below 100 degrees across iowa corn ranges from the 10th leaf stage (v10) to tasseling and silking (vt and r1) as of july 1st, the usda reports that 16 percent of iowa's corn was silking that's nearly 2 weeks ahead of normal. Title: meta-analyses of qtl for grain yield and anthesis silking interval in 18 maize populations evaluated under water-stressed and well-watered environments. Female flowering, male flowering, anthesis-silking-interval, yield, ears per plant, and plant and ear height were measured except for male and female flowering and anthesis-silking interval at aya65, acid soil environments tended to have less the genetic variance. Stress, anthesis - silk interval and corn yield potential july 2, 2012 icm news expect a wide window for both pollen shed and silking no doubt earlier silking in normal years is in part associated with earlier planting anthesis silk interval.
Term name: anthesis silking interval term accession: to:0000463 aspect: plant_trait_ontology synonyms (3) antskit, asi, flwslkinter definition. Silking, thereby prolonging the anthesis-silking interval keywords - genotypes, moisture stress, anthesis silking interval, irrigation i introduction stress is an external factor that exerts a deleterious physiological. Drought-induced changes in anthesis-silking interval are related to silk expansion: a spatio-temporal growth analysis in maize plants subjected to soil water deficit a qtl study of the responses of leaf growth and of anthesis-silking interval to water deficit. Hall et al 1981 1982 suggested that an increased anthesis silking interval from aec aec 302 at kentucky. Anthesis-silking interval (asi) was noted in days between anthesis and silking, and prolificacy (two cobs per plant) was noted in percent for the first set of dh lines belonging to synthetic population sp 01-012sss the results are presented in table 3. Twenty maize inbred lines were studied for days to 50 % anthesis and silking, anthesis-silking interval, leaf firing, tassel blast, spad reading and leaf senescence, plant and ear height, leaf area index, ear per plant, cob length and diameter, number of kernel/ear, number of kernel row/ear.
The longer anthesis-silking interval are undesirable for grain yield production as the male and female parents do not synchronize well on the other hand, materials with shorter anthesis-silking. Eight of the single crosses showed positive sca effects while seven displayed negative estimates regarding anthesis-silking interval (asi) under water deficit condition the best combination was. Anthesis-silking interval (asi), (sari-gorla et al 1999, edmeades, 2013), change in color from green to green-gray, and rolling of the lower leaves followed by those in the upper canopy at the same time leaf senescence. View rebekah arnold's professional profile on linkedin conducted a research project focusing on the effects of plant density on the silking-anthesis interval of inbred production fields biological research aide usda. Length of the anthesis-silking interval (as i), and yield losses are more severe (grant et al, 1989) selection for grain yield under drought condition has often been considered ineffi-cient because of the low heritability especially as yield de.
Excessive rainfall impact on corn pollination source: ohio state university this shorter anthesis silking interval may mitigate the impact of drought stress during pollination read the article at the osu website 1 comment hide comments comment. Hybrid performance in different breeding anthesis-silking interval was estimated as the number of days between silking and anthesis date snp genotyping and marker selection all 255 inbred lines in experiment 1 and 30 f 2-derived lines per. Anthesis silking interval (asi) -modern hybrids have shorter intervals between anthesis and silking -select directly for adaptation to high plant density -genomics: identify alleles that confer adaptation to high. Qtl mapping for controlling anthesis-silking interval based on ril population in maize xiaohong liu1, zuping zheng2, zhenbo tan1, zhong li2, chuan he2, daihui liu2, guoqing zhang2 and yangchun luo2. Read drought tolerant corn hybrids in addition to hundreds of recent measurements of flowering synchrony at the nw ohio location for the may 3 planting date indicated that the anthesis silking interval was 1 to 3 days greater for the drought susceptible hybrids than the drought tolerant. Delaying weed control lengthens the anthesis-silking interval in maize andrew reid, victor gonzalez, peter h sikkema, elizabeth a lee, lewis lukens, and.
Identification of quantitative trait loci under drought conditions in tropical maize 1 flowering parameters and the anthesis-silking interval ribaut jm(1), hoisington da, deutsch ja, jiang c, gonzalez-de-leon d. Time to silking, anthesis-to-silking interval (asi), and yield as a hybrid when crossed to mo17 the subset of selected sils represented most of the variability present for the traits mentioned above these sils included the.
Identification of quantitative trait loci under drought conditions in tropical maize 1 flowering parameters and the anthesis-silking interval. Full-text (pdf) | maize, the most important stable crop in kenya is affected by drought stress mostly at flowering stages causing delay in silk emergence the anthesis to silking interval (asi) is highly correlated to grain yields under drought stress as shown by experiments conducted at cimmyt.