Ethylene, Hypobaria, and Hypoxia: Influence on Plant Gas Exchange, Germination, Plant Growth, and Nutrition of Lettuce () from Seed to Harvest,Frederick T. Davies
根据第五段第1,2,3行Next, cover the seed tray with paper. When the seedlings have come up far enough to touch the paper, take it off. You can transplant the seedlings into the garden when they are about two to three centimeters tall. 得出seedling 幼苗,所以C正确。3...
But do not drown the seeds.Next, cover the seed tray with paper. When the seedlings have come up far enough to touch the paper, take it off. You can transplant the seedlings into the garden when they are about two to three centimeters tall. Do this when the weather is not too hot a...
From seed germination to harvest, lettuce takes 65 to 120 days to mature. What are true leaves on lettuce? The true leaves are the larger ridged leaves on the sides and coming up from the middle. Lettuce Month Activities Enjoy a salad ...
Water the plants but not too heavily.Harvest leaf lettuces when the leaves are big enough to eat. Pull the leaves from the outside of theplanting so the inside leaves wil keep growing. Or, you can cut off the whole plant. Leave about two or three centimeters above the ground so the ...
Ethylene reduces plant gas exchange and growth of lettuce grown from seed to harvest under hypobaric and ambient total pressure 2012, Journal of Plant Physiology Citation Excerpt : In a study of Arabidopsis gene expression at low atmospheric pressure, less than one-half of the 200 genes dramaticall...
Fig. 3. Representative images showing latex from Lactuca serriola and its domestication route to modern cultivated lettuce (L. sativa). A, the seedling stage of L. sativa. Scale bar=5 cm. B, the harvest stage of L. sativa. Scale bar=10 cm. C, the seedling stage of L. serriola. Scal...
Succession planting.Make successive plantings every three weeks to ensure a constant supply of fresh lettuce. Lettuce planting calendar Lettuce is a cool-weather crop that requires 40 to 50 days to reach harvest. Lettuce will send up a stalk and bolt or go to seed in temperatures greater than...
The effects of applications of gibberellins to the parent plant, harvest date and harvest method on seed yield and mean seed weight of crisp lettuce The effects on bolting and flowering of treating crisphead lettuce plants cv. Pennlake with gibberellins 4 and 7 (GA 4+7 ) at the rosette ...
Growing lettuce is great to do with kids, because it’s so easy to grow and it grows so quickly. Lettuce goes from seed to baby greens in 5-6 weeks, and seed to salad bowl in 6-8 weeks, so it’s a great plant for school gardens.Growing Lettuce—SaladScape of ‘Skyphos’ and ...