Anthesis silking interval (asi) was calculated with ff − mf growing degree days (gdd) at each location were calculated using the model of. To 50% tasselling, pollen shed and silking anthesis-silking interval, anthesis- silking interval was estimated as the difference between. The final grain yield and the anthesis-silking interval (asi) but a positive relationship between the grain yield and kernel number (edmeades and daynard , 1979. 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.
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,. Rating, leaf-rolling rating, striga rating, striga count and anthesis-silking interval ( asi) had been reduced significantly when plants were watered throughout the. Among these, anthesis silking interval, plant height, ear height, kernel rows per cob, cob length and cob diameter are significantly important [6.
Number days to anthesis days to silking total lowerb upperb total lowerb bif2 aligns with a qtl for the anthesis–silking interval (asi. The anthesis to silking interval (asi) is highly correlated to grain yields under drought stress as shown by experiments conducted at cimmyt,. 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.
Minimum (57 days, 59 days, 2 days and 94 days) days to anthesis, days to silking , anthesis to silking interval (asi) and days to maturity was recorded by azam-3,. Anthesis to silking interval • tassel sterility • leaf reflectance • leaf senescence • leaf antioxidant capacity • silk antioxidant capacity • leaf isotope ratios. Nutrients, and sometimes by long photoperiods and lack of thermal adaptation, ear growth slows in relation to tassel growth and the anthesis-silking interval. Qtl mapping for controlling anthesis-silking interval based on ril population in maize x liu, z zheng, z tan, z li, c he, d liu, g zhang, y luo.
Data were recorded on days to 50% tasseling, days to 50% anthesis, days to 50 % silking, anthesis silking interval, plant height and ear eight analysis of. 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. Combining, earliness, short anthesis to silking interval and yield based selection indices under intermittent water stress to select for drought tolerant maize. Distribution of number of days from anthesis to silking at high density the stand- they speculated length of the anthesis-to-silking interval.
Drought stimulates a protandrous pattern of development, increasing the anthesis-silking interval because maize has a short period of flowering and pollen. Anthesis to silking interval usefulness in developing drought tolerant maize kahiu ngugi, jerono cheserek , cecilia muchira and george chemining'wa. Emergence, results in increasing anthesis silking interval (asi) this asynchrony between male and female flowering time is regarded to be. Stress, anthesis - silk interval and corn yield potential july 2 stress during the pollination and silking period often reduces yield potential.
R1 silking one of the most critical stages in determining yield potential: silks are visible and pollination begins at the base and proceeds toward the tip k. Leaf growth and anthesis–silking interval (asi) are the main determinants of source and sink strengths of maize via their relations with light. Delaying weed control lengthens the anthesis-silking interval in maize andrew reid, victor gonzalez, peter h sikkema, elizabeth a lee, lewis lukens, and.