Polyethylene versus Glassine Shoot Bags in Pollination of Corn (Zea mays L.)
1968
Tsangarakis, C. Z. | Fleming, A. A.
Individual plant data from 300 single-cross plants consisting of 10 replications were used. Of the eight characteristics studied, the glassine bags were significantly better than the polyethylene bags with respect to the following: 1) moisture inside the bag one day before pollination; 2) moisture inside the bag on day of pollination; 3) number of kernels per ear; and 4) distribution of kernels per ear. A significantly better rating was obtained for condition of bags on the day of pollination than on one day before pollination within the polyethylene treatment. The better rating is attributed to silk growth during the interval. The simple correlation value of -.45** indicated that an increase in the amount of moistiire inside the shoot bag caused a decrease in number of Kernels. Ears under glassine bags produced 14.40 kernels more per ear than those under polyethylene. Moisture inside the bag and length of silks were negatively correlated (r = -.23**). An r value of +.27** was obtained between length of silks and number of kernels per ear. Bags standing upright on the shoot had less moisture (r = --.21*).
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