Cucurbit Genetics Cooperative Report 5: 51-52 (article 25) 1982 S.G. Stuart and J.B. Loy University of New Hampshire, Durham, NH 03824 Pumpkin seeds normally develop a well-defined, five-zoned seed coat or testa (1) by ten to fifteen days post-anthesis (2). In 1934, Tschermak-Seysenegg reported a ‘naked-seeded’ or hull-less mutant in pumpkin which did not develop […]
J.B. Loy
Comparison of the Effectiveness of BA and AVG in Promoting Fruit Set in Muskmelon
Cucurbit Genetics Cooperative Report 5:23 (article 11) 1982 J. B. Loy University of New Hampshire, Durham, NH 03824 The cytokinin N6 – benzyladenine (BA) promotes fruit set in hand-pollinated muskmelon (1). In making our muskmelon pollinations during the summer, we routinely apply 2 µg BA in a lanolin-water paste (7:3 w/v) to the base of ovaries […]
Effect of Ethylene on Fruit Set in Emasculated and Non-emasculated Flowers of Muskmelon
Cucurbit Genetics Cooperative Report 5:33-34 (article 17) 1982 C. D. Zack and J. B. Loy University of New Hampshire, Durham, NH 03824 Studies by Mann (1) indicated that injury to the flower during emasculation inhibited fruit set. Experiments by Natti and Loy (2) showed that excised emasculated flowers produce 2 to 3 times as much […]
Dry Matter Accumuilation and Productivity in Bush and Vine Strains of Winter Squash
Cucurbit Genetics Cooperative Report 5:40-41 (article 20) 1982 C. E. Broderick and J. B. Loy University of New Hampshire, Durham, N.H. 03824 The bush phenotype facilitates conventional row culture and manageability of winter squash, however, there is little information regarding comparative photosynthgetic efficiency and productivity between bush and vine forms of C. maxima. In 1980 and […]
The Effect of Light and Fruit Development on Internode Elongation in Cucurbita maxima Squash
Cucurbit Genetics Cooperative Report 2:40-41 (article 25) 1979 C. D. Zack and J. B. Loy University of New Hampshire, Durham, NH 03824 Bush strains of Cucurbita maxima squash exhibit a compact form of growth under field conditions during the summer, but grow in a vining manner during the fall and winter in the greenhouse in Durham, NH. […]
Regulation of Sex Expression in Gynomonoecious Muskmelon for Hybrid Seed Production
Cucurbit Genetics Cooperative Report 1:18 (article 18) 1978 J. B. Loy University of New Hampshire, Durham, NH 03824 Several approaches for obtaining hybrid seed in muskmelon without hand pollination have been suggested, but all the methods to date have serious limitations. It has been difficult to obtain stable, true-breeding lines of gynoecious muskmelon, and until […]
Improving Self Pollinations in Muskmelon
Cucurbit Genetics Cooperative Report 1:17 (article 17) 1978 J. B. Loy and T. Natti University of New Hampshire, Durham, NH 03824 We have been investigating the problem of low fruit set in hand pollinated muskmelon. Our approach has been the postulation that injury of flowers resulting from emasculation could induce wound ethylene. Excess ethylene production […]