Abstract (summary): a genetic linkage map with 89 ssr marker loci was constructed based on a maize (zea mays l) population consisting of 184 f2 individuals. And 192°c in 2008, respectively (figure 1) climate diagram showed that in 2007 drought period was in july at the flowering stage (anthesis and silking), and in. The anthesis to silking interval (asi) is highly correlated to grain yields under drought stress as shown by experiments conducted at cimmyt,. Abstract leaf growth and anthesis–silking interval (asi) are the main determinants of source and sink strengths of maize via their relations with. Anthesis-silking and kernel setting may vary with the plant growth rate and keywords: anthesis, maize, pre-anthesis drought, silking, supra-optimal nitrogen.
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. Some of the new drought tolerant hybrids have shorter “anthesis silking intervals” , ie pollen shedding and silk emergence are more closely synchronized than. Abbreviations: asi, anthesis-silking interval das, days after sowing ls, leaf stage at the start of the treatment rtl, relative tassel length barrenness and.
Anthesis to silking interval usefulness in developing drought tolerant maize kahiu ngugi, jerono cheserek , cecilia muchira and george chemining'wa. Lack of soil moisture during anthesis has little impact on pollen's capacity to selection for a short anthesis-silking interval during drought resulted in an earlier . Anthesis is the period during which a flower is fully open and functional it may also refer to the onset of that period the onset of anthesis is spectacular in some .
Water deficit around flowering reduces seed number model of plant development tasseling anthesis silking but recent genotypes less sensitive ( bruce et al. Improve soil moisture content at a depth of 20–80 cm below the ground surface during the anthesis-silking stage however, at maturity, straw mulching. Analysis of variance showed that azam was highly significant for days to anthesis , days to silking and grain yield similarly, pahari and iqbal showed highly. The anthesis to silking interval (asi) is highly correlated to grain yields under drought stress as shown by experiments conducted at cimmyt, mexico this study. Term name, anthesis silking interval term accession, to:0000463 aspect, plant_trait_ontology synonyms (3), antskit, asi, flwslkinter definition, a .
In over 90% of the trials, ears plant−1, kernels plant−1, weight kernel−1, anthesis- silking interval (asi), tassel branch number and visual scores for leaf angle,. Silks) anthesis-silking interval (determined as the difference between days to silking and days to anthesis) plant height (measured in cm as. Keywords: rainfed kharif variability anthesis silking interval resource remobilisation 1 introduction the drought has been highlighted.
Anthesis–silking interval (asi), tassel size scores, and barrenness changes in leaf angle scores and stay green scores have been implicated as determinants of . Nutrients, and sometimes by long photoperiods and lack of thermal adaptation, ear growth slows in relation to tassel growth and the anthesis-silking interval. Anthesis-silking interval (asi) under drought has become shorter in modern hybrids, and selection has possibly led to an increase in the growth of spikelets and. 20-25% of the global maize production area is affected by drought in any given year  drought occurring at anthesis and silking period.
The parameters measured included: days to anthesis and silking recorded as the number of days from planting to when 50% of the plants in. 50% anthesis, silking and maturity, number of leaves), grain yield, and harvest index linear phenotypic correlation coefficients were estimated.
Delaying weed control lengthens the anthesis-silking interval in maize andrew reid, victor gonzalez, peter h sikkema, elizabeth a lee, lewis lukens, and. And pcv were recorded for anthesis silking interval, grain yield per plant, ear height, harvest index, number of grains row per cob, number of grains per row and. And 6073% for number of stands per plot, anthesis silking interval, plant height, revealed that anthesis silking interval (r = 0877), number of cobs per plant (r.