Sweet corn webber falls ok5/10/2023 Cob-and fodder-yield possessed positive correlation, but did not show any association with kernel sweetness. Late sowing favoured kernel sweetness and cob yield. Sowing time also had significant influence on anthesis, cob-and fodder-yield. Genotypes with stable brix across sowing-and harvest-time have been identified. Sixty four per cent of the genotypes attained peak in brix at 24-DAP (days after pollination), while 24% and 12% genotypes had highest brix at 20-DAP and 28-DAP, respectively. Sixty eight per cent of the hybrids attained highest brix in third sowing compared to 12% and 16% in first and second sowing, respectively. Kernel brix across genotypes ranged from 16.1-25.5%. Genotype × sowing time, genotype × harvest time and genotype × sowing time × harvest time interactions contributed 13.8%, 8.2% and 18.9% of total variation, respectively. Genotype, sowing-and harvest-time had significant influence on kernel sweetness accounting 33.8%, 9.1% and 3.9% of total variation, respectively. Twenty five super sweet corn genotypes were evaluated at three-sowing and-harvest dates. Providing suitable environment for high-kernel sweetness and yield is important for successful commercialization of sweet corn hybrids. This is the first ever report of responses of sh2sh2/su1su1-based hybrids to different sowing- and harvest- time for kernel sweetness and yield. The information generated here hold significant promise in the improvement of sweet corn. Kernel sweetness did not show any correlation with cob- and fodder- yield. Significant influence of sowing time on both cob- and fodder- yield was also observed, and third sowing was identified as the most favourable environment for both the traits. Few hybrids also displayed stable brix across sowing- and harvest- time. Average brix across harvest dates attained highest value in third sowing and 24- days after pollination recorded the highest brix across sowing dates. Genotype × sowing time, genotype × harvest time and genotype × sowing time × harvest time interactions contributed 11.4%, 10.3% and 15.2% of the total variation for brix, respectively. Sowing- and harvest- time had significant influence on brix accounting 19.4% and 8.5% of the total variation, respectively. Kernel brix across double mutant sweet corn hybrids ranged from 17.6-26.6% (Mean: 21.0%) and was comparatively higher than sh2sh2-based checks (19.3%). In the present study, 11 novel double mutant sweet corn (sh2sh2/su1su1) hybrids along with traditional sh2sh2-based checks were evaluated at three sowing- and harvest-dates. Identification of suitable sowing- and harvest-time for achieving high-kernel sweetness and yield is of paramount importance for successful commercialization of sweet corn hybrids. Sweet corn used as vegetable and component of various snack items, has emerged as one of the popular choices across the world. The highest ear and kernel yields were obtained for ‘Sweet Covering was most beneficial in cooler years for the first sowing date. An application of non-woven PP increased the yields, the share of early yield in the overall yield of marketable ears and the number of ears. Unlike in 2008, delayed sowing in 2006 caused a decline in the number of ears and kernel yield. What is more, over the study years, on average both the total and marketable yields of ears increased with the delayed sowing, however only in the coldest 2008 this increase was significant. Moreover, with a delay in the sowing date, kernel yields harvested in these years were twice as high as in 2006, when weather conditions contributed to more rapid maturation of ears and to an increase in the percentage share of early ear yield in the total yield. In 20, higher early, total and marketable yields were produced (by 29 and 13%, 50 and 44%, as well as 72 and 74%, respectively), and more ears were harvested (by 40-45%), too. Weather conditions in 20 were more favourable for sweet corn growth compared with the year 2006, when high air temperatures were accompanied by very low precipitation from mid-June to late July. It was conducted to examine the effect of three sowing dates (26th April, 10th May and 24th May) and covering with non-woven PP on the yields of three sweet corn cultivars (Sweet Nugget F1, Rana F1 and Sheba F1). A field experiment was carried out in the years 2006-2008 at the Experimental Station in Zawady (52✠3’ N 22✣3’ E). However, sweet corn is sown on different dates in these regions. The area under sweet corn is increasing in Poland due to increased consumption and suitability for cultivation in all regions of the country.
0 Comments
Leave a Reply. |