| Research for this study floral traits and habits of different flowering tobacco germ plasm resources, and floral traits were learned between all varieties with different flowering habits and differences in the results obtained with a certain value of the breeding work. Provides data has some value for future breeding work can focus on different varieties of floral characters, use the appropriate ways and means of collecting pollen, pollen preservation and hybridized to the core and a series of cross-breeding work, For different varieties of flowering habits, to solve the cross-breeding of flowering in the presence of sterile pollen collection preservation and other issues, to ensure that help to provide a higher success rate of hybridization.Where budding stage:MSK394plant height up to92.1cm, wild species close to the lowest height only14cm. Center of flower opening:height of the tallest volt cigarette144.3cm, the minimum height of wild species is only about24cm; Gordon smoke bud high No.3up to112.3cm, high bud of wild species is only15.9cm lowest; He Feng sun-cured tobacco leaf and a maximum of K326, both about20, the number of wild species of leaf tobacco and Xiang No.3is the least, about both9; Wild flowers branch was the most about are9, G80and MS-K326flower branch is the least about are four; longest length flower varieties K326is7.43cm, the shortest length of varieties of wild flowers is1.80cm the former is almost four times as much as the latter; floral varieties K326is the longest length of1.52cm, the shortest varieties of wild species is0.45cm, the former for the latter three times; calyx length up to2.36cm varieties K394shortest species of wild species0.87cm former is2times more of the latter; Gordon length of the longest diameter petal varieties of tobacco on the3rd2.43cm, the shortest varieties of wild species1.01cm, the former is about2.5times the latter; stamens longest varieties K3394is5.27cm, the shortest varieties of wild species1.35cm, the former is about the latter about four times; pistil length of the longest species K394is5.17cm, the shortest varieties of wild species is1.47cm, the former is about three times as much as the latter. Flowering:Gordon smoke No.3is the highest height157cm, He Feng and sun-cured tobacco is less than the minimum height60cm; Gordon smoke bud high No.3up to126.0cm, the lowest bud high Hefeng only about sun-cured tobacco28.3cm; Hefeng sun-cured tobacco is the most, are26or so. Wild species and number of leaves ZY08-4as a minimum, are about12; has not changed all varieties of flowers grow in descending order, and open than the center of the flower longer have to spend a certain growth; various varieties flower length little change in descending order, and the flowers open than the center there is a certain length of flower growth; Calyx longest and smallest species are the same, a difference of1.41cm; petal length of the longest diameter varieties G80is2.82cm, the shortest varieties of wild species is1.14cm, the former is about2.5times the latter; stamen length of each species no small order to big changes, and open than the center of the flower stamens have a certain length increases; pistil length of each species vary in descending order, pistil length of the longest species Xiang smoke on the3rd of5.32cm, The shortest species of wild species1.50cm. n the center of the flower opening period, the length of the longest diameter varieties MSK394ovary is0.60cm, the shortest is four times as many varieties of wild species; ovary diameter length of the longest species Xiang smoke on the3rd of0.70cm, the shortest varieties of wild species is0.15cm, mostly concentrated in the ovary diameter length0.52cm. Capsule period:up bud numbers is ZY08-4, has15bud, at least a wild species, only four bud; capsules and stems of the largest angle is large volt cigarette, angle nearly reached60°, ZY08-4’s the minimum angle of37.14°; between bud pitch to pitch MSK326maximum20.67cm, while wild pitch basically does not exist, the main stem of the basic degradation by the Minister branch bud stalk out.Wild species of budding earliest squaring on April15followed by the yellow tobacco varieties ZY08-4on April23, the latest varieties of squaring the sterile line MSK394. The first is the center of the-flower bud opening the earliest varieties of wild flowers open-on April21centers, the latest variety is MSK394. Wild species on May4first to enter the flowering stage, no later than June1into flowering varieties are MSK394. Wither on basically in June, only ZY08-4as early as May28basic wither, and the remaining species concentrated in the June8-June period of the24th to reach wither. Wild flowers have a longer period of54days as much as other varieties ranging from30days to39days. Where the first wild species of budding flowering longest, CMS varieties MSK394latest budding, flowering shortest. |
PDF Full Text Request