The main purpose of this project is to breed for promising varieties with desirable characteristic， such as high yield ，superior quality， heat tolerance and diseases resistance， and to do the seed production tests for the potential new hybrids of cucumber， pumpkin， bitter gourd， pepper and eggplant.。The object of this breeding plan is to improve quality of cucumber. We will breed good quality F1 hybrid variety suit for cultivation in subtropical area. The method of breeding is to introduce gynoecious gene into monoecious cultivars and select plants resistant to downy mildew，powdery mildew and virus diseases. We evaluated and selected 13 lines for test crosses for breeding in the spring and combination ability. And through the mouth-feel evaluation， we selected 6 lines for test crosses for breeding in the fall and combination ability in next year. This year， we also bred 20 inbred lines and investigated 29 lines of Southeast Asia at the same time， asthe basisoftheimproved varieties.Bitter gourd are important vegetables in Taiwan. Taiwan Seed Improvement and Propagation Station （TSIPS） has bitter gourd inbred lines with good quality and high yield. For the collection and evaluation of germplasms ，130 lines accession of them were used to evaluate the genetic diversity of Bitter gourd. It showed significant difference among the gerplasms which revealed that the breeding program could be performed. We planted 30 test crosses in the farm this year. We compared those test crosses which are three lines(101H05、101H06、101H16) better than other lines.The collected 4 squash local and commercial varieties， cultivated and characters complete surveyed and produce inbred Seeds. Winter of 2012 to early spring 2013 cultivation pumpkin 201 inbred lines， in the spring of 2012 planting of 157 inbred lines ， and in fall planting of 121 pumpkin varieties and single-fruit strains on F2-F8 generations， cultivated and characters complete surveyed and produce inbred Seeds. And 24 test cross lines are made in spring.。Assessment of the spring cultivated selected 56 strains by the good performance and to enhance generation in next planting season. Fall planting for cultivar comparison and character will be surveyed. To complete the trial of best pollination time with 3 different female parent lines.。The object of this breeding plan is to improve quality of eggplant. We will breed good quality F1 hybrid variety suit for cultivation in tropical and subtropical area. The method of breeding is introduce resistant disease-resistant gene and selected plants resistant to bacterial wilt and virus disease.This year， we bred 12 inbred lines of eggplant and investigated the fruit characters. The results were that the fruit lengths were between 27 to 35 cm， fruit diameters were between 25 ~38mm， white and light green flesh， fruit shape between the short to medium long. We will continue to breed high inbred lines and in the same time we also collected 10 new varieties of hybrid seed of eggplant.Fifteen lines (varieties) in the spring crop and forty eight lines (varieties) in the fall crop were evaluated and selected this year. 11 low-pungent hybrids selected last crop were also tested for field trial in the spring crop， and 5 (102hp5、102hp6、102hp8、102hp12及102hp13) among them were selected. In addition， new hybrids were crossed and the parental seeds were produced in fall crop. The results for seed production of sweet pepper lines 11077022-2、11077022-2×sp21 and 11077022-2×7510 in suitable season suffering suddenly high temperature showed that 10 ppm GA3 sprayed on parental plants twice could improve good seed number at least up to 16.5 % for mother plant and hybrid seed production. The pollen germination and seed quality of pollen parent and hybrid of tomato line ‘100ht23’ were better under 25/20℃ condition.The pollen germination percentage and seed number and quality were also better while using the pollen preserved in liquid nitrogen for pollination than fresh pollen during unsuitable temperature。
The main purpose of this project is to breed for promising varieties with desirable characteristic， such as high yield ，superior quality， heat tolerance and diseases resistance， and to do the seed production tests for the potential new hybrids of cucumber， pumpkin， bitter gourd， pepper and eggplant.。The object of this breeding plan is to improve quality of cucumber. We will breed good quality F1 hybrid variety suit for cultivation in subtropical area. The method of breeding is to introduce gynoecious gene into monoecious cultivars and select plants resistant to downy mildew，powdery mildew and virus diseases. We evaluated and selected 13 lines for test crosses for breeding in the spring and combination ability. And through the mouth-feel evaluation， we selected 6 lines for test crosses for breeding in the fall and combination ability in next year. This year， we also bred 20 inbred lines and investigated 29 lines of Southeast Asia at the same time， asthe basisoftheimproved varieties.Bitter gourd are important vegetables in Taiwan. Taiwan Seed Improvement and Propagation Station （TSIPS） has bitter gourd inbred lines with good quality and high yield. For the collection and evaluation of germplasms ，130 lines accession of them were used to evaluate the genetic diversity of Bitter gourd. It showed significant difference among the gerplasms which revealed that the breeding program could be performed. We planted 30 test crosses in the farm this year. We compared those test crosses which are three lines(101H05、101H06、101H16) better than other lines.The collected 4 squash local and commercial varieties， cultivated and characters complete surveyed and produce inbred Seeds. Winter of 2012 to early spring 2013 cultivation pumpkin 201 inbred lines， in the spring of 2012 planting of 157 inbred lines ， and in fall planting of 121 pumpkin varieties and single-fruit strains on F2-F8 generations， cultivated and characters complete surveyed and produce inbred Seeds. And 24 test cross lines are made in spring.。Assessment of the spring cultivated selected 56 strains by the good performance and to enhance generation in next planting season. Fall planting for cultivar comparison and character will be surveyed. To complete the trial of best pollination time with 3 different female parent lines.。The object of this breeding plan is to improve quality of eggplant. We will breed good quality F1 hybrid variety suit for cultivation in tropical and subtropical area. The method of breeding is introduce resistant disease-resistant gene and selected plants resistant to bacterial wilt and virus disease.This year， we bred 12 inbred lines of eggplant and investigated the fruit characters. The results were that the fruit lengths were between 27 to 35 cm， fruit diameters were between 25 ~38mm， white and light green flesh， fruit shape between the short to medium long. We will continue to breed high inbred lines and in the same time we also collected 10 new varieties of hybrid seed of eggplant.Fifteen lines (varieties) in the spring crop and forty eight lines (varieties) in the fall crop were evaluated and selected this year. 11 low-pungent hybrids selected last crop were also tested for field trial in the spring crop， and 5 (102hp5、102hp6、102hp8、102hp12及102hp13) among them were selected. In addition， new hybrids were crossed and the parental seeds were produced in fall crop. The results for seed production of sweet pepper lines 11077022-2、11077022-2×sp21 and 11077022-2×7510 in suitable season suffering suddenly high temperature showed that 10 ppm GA3 sprayed on parental plants twice could improve good seed number at least up to 16.5 % for mother plant and hybrid seed production. The pollen germination and seed quality of pollen parent and hybrid of tomato line ‘100ht23’ were better under 25/20℃ condition.The pollen germination percentage and seed number and quality were also better while using the pollen preserved in liquid nitrogen for pollination than fresh pollen during unsuitable temperature。