High-yield Cultivation of Momordica grosvenorii from Plantlets
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摘要:
目的 通过研究不同种植时间、不同移栽方式以及不同授粉时间等对罗汉果组培苗生长的影响,探明罗汉果组培苗高产栽培关键技术,为罗汉果组培苗推广发展提供参考和理论依据。 方法 设置5个不同的种植时间、4种不同的移栽方式、两种天气情况下6个不同的授粉时间以及3种不同的花粉贮存方式,研究罗汉果组培苗生长。 结果 随着种植时间的推移,罗汉果的裂果率逐渐增加,6月上旬尤为严重,综合考虑4月下旬种植最为理想;在4种不同移栽方式中,将小苗由小营养钵转到大钵继续在温室大棚中培育至4月中旬气温相对较高时再移栽大田定植产量最高且果径最大;在对罗汉果进行授粉时以阴凉天气下10:00效果最佳,并且将罗汉果花粉保存在5~8℃冰箱之中可以延长花粉的活性至3 d。 结论 在桂北地区发展种植罗汉果组培苗,首先组培小苗需要转大钵在温棚培育,并在4月上旬至5月中旬种植,由此可以提早上棚、显蕾、开花结果;采集的花粉应当保存在5~8℃冰箱,并在阴凉天气8:00~10:00完成授粉。 Abstract:Objective The planting period, transplanting method and pollination time on the seedling growth of Siraitia grosvenorii plantlets were varied to investigate conditions for a high-yield cultivation practice. Method Five variations on planting periods, 4 on transplanting methods and 6 on pollination times were applied under 2 different weather conditions and 3 pollen storage methods for the experiment to determine the optimal conditions for the plantlet growth and development. Result Cracking of harvested S. grosvenorii nuts increased when planting was postponed in the season, especially if the planting was held in as late as early-June. A late-April planting was determined to be most desirable. The optimal seedling transplantation was conducted by transferring the seedlings from small nutrient pots to a large ones for greenhouse cultivation until mid-April when the weather became warmer. The plantlets were then transplanted to the field for latter stages of plant growth and fruiting. Pollination was best performed at 10 a.m. on a cool day. By storing in a 5-8℃ refrigerator the pollen vitality could be extended to 3 days. Conclusion Planting S. grosvenorii seedlings in northern Guangxi required an initial training stage to allow the plantlets grow in a greenhouse prior to field cultivation in between early-April and mid-May. That would better the climbing ability, budding, blossoming and yielding fruit early of the plants. The collected pollens should be stored at 5-8℃, and pollination be completed between 8 and 10 a.m. under cool weather. -
Key words:
- Siraitia grosvenorii /
- plantlets /
- cultivation technology
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表 1 不同种植时间对植株生长和产量的影响
Table 1. Effect of planting period on plant growth and yield
种植时间
Planting time上棚时间
Sheding time
/(mm-dd)开花时间
Flowering time
/(mm-dd)果实成熟时间
Fruit ripening
time平均株产个数
Average number
of plants幼苗死苗率
Seedling mortality
/%裂果率
Dehiscent rate
/%3月中旬 In the middle of march 06-13 07-16 10月上旬 59±9.42b 11.63±2.27a 1.87±0.31b 4月上旬Early april 06-22 08-03 10月中旬 68±4.32ab 5.32±0.47b 2.02±0.15b 4月下旬In late april 06-28 08-10 10月下旬 73±5.89a 4.65±0.36bc 2.61±0.06b 5月中旬In middle may 07-14 08-15 10月下旬 66±8.64ab 2.12±0.23d 5.47±0.42b 6月上旬 In early june 07-23 08-21 11月下旬 57±4.97b 2.84±0.24cd 26.36±4.09a 注:同列数据后不同小写字母表示在0.05水平下差异显著。表 2~4同。
Note:Different lowercase letters in a same column represent significant difference at 5% level. The same as table 2-4.表 2 不同移栽方式方式对植株生长和产量的影响
Table 2. Effects of cultivation practice on plant growth and yield
移栽方式
Management
style上棚前日均生长量
Average daily growth
before shed/cm上棚时间
Sheding
time显蕾时间
Flower
buds time初花时间
First flowering
time盛花期
Flowering
time平均株产个数
Average number
of plants果径
Fruit diameter
/cmT1 4.06±0.59a 5月上旬
Early May5月中下旬
Mid-to-tate May6月中旬
Mid-June6月下旬
Late June73±7.26a 5.47±0.50a T2 3.13±0.61b 6月上旬
Early June6月下旬
Late June7月中旬
Mid-July7月下旬
Late July68±6.48a 5.14±0.11ab T3 3.00±0.28b 6月上旬
Early June6月下旬
Late June7月中旬
Mid-July7月下旬
Late July66±2.16a 5.30±0.19a T4 1.89±0.25c 6月下旬
Late June7月下旬
Late July8月中旬
Mid-August8月下旬
Late August57±3.56b 4.79±0.11b 表 3 不同时间授粉对坐果、成果和果径的影响
Table 3. Effects of pollinating time on fruit setting, fruiting and size
不同授粉时间
Different
pollination time坐果率
Fruit-set
rate/%成果率
Fruit-result
rate/%果径
Fruit diameter
/cm阴凉天气 Cool weather 8:00 80.3±1.69a 74.1±1.35ab 5.43±0.18abc 10:00 82.0±2.16a 79.2±7.59a 5.71±0.11a 12:00 81.1±2.28a 76.3±4.46ab 5.53±0.21ab 14:00 80.5±1.95a 71.0±4.32bc 5.15±0.20cde 16:00 65.3±5.12c 66.3±4.61cd 4.86±0.10efg 18:00 58.2±6.09d 60.6±2.41de 5.07±0.13def 高温干燥天气 Hot dry weather 8:00 80.0±1.59a 70.3±1.43bc 5.29±0.23bcd 10:00 79.1±1.28a 71.2±1.30bc 4.96±0.21ef 12:00 72.1±4.41b 69.1±0.83bc 4.88±0.08efg 14:00 60.2±5.37cd 58.6±4.52e 4.77±0.15fgh 16:00 52.3±6.45e 50.4±3.15f 4.52±0.33h 18:00 48.7±3.51e 50.3±5.75f 4.61±0.07gh 表 4 雄花不同贮存方式及不同贮存时间授粉对坐果率、成果率和果径的影响
Table 4. Effects of male flower storage and duration on pollination, fruit setting, fruiting and size
不同存贮方式
Different storage
methods存贮天数
Storage
days/d坐果率
Fruit-set
rate/%成果率
Fruit-result
rate/%果径
Fruit diameter
/cm5~8℃冰箱
5~8℃ refrigerator1 82.6±1.84a 75.1±4.61a 5.47±0.13ab 2 78.5±1.06b 73.4±1.87a 5.01±0.14c 3 69.3±2.62c 62.1±2.12b 5.31±0.24b 4 27.4±2.05e 23.6±3.18d 4.66±0.28d 阴凉天气室内
Cool weather indoor1 81.8±0.85a 78.3±1.63a 5.63±0.09a 2 33.6±2.19d 28.7±3.32c 5.28±0.11b 3 0.0±0.00g - - 高温干燥天气室内
Hot dry weather indoor1 80.6±1.36ab 77.5±4.86a 5.30±0.16b 2 4.6±1.64f 4.6±1.22e 4.87±0.16cd -
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