Sow your pumpkin seeds on their sides to reduce the risk of rotting. Make a planting hole to a depth of about 2.5cm.Because pumpkin seeds are quite large, they won’t mind the coarser texture. It’s a good idea to use potting compost for pumpkins rather than seed sowing compost because it gives the plants more nutrients from the very start. Make sure you press the compost down gently to fill in any air gaps. Fill a small 7.5cm diameter pot with a good quality potting compost.However I prefer to start mine indoors from mid-April, and then plant them out later on. You can wait until the soil has warmed up in late May, early June, and then direct sow your pumpkins outdoors.Watch our short video above to see how resident horticulturist, Sue Sanderson, sows her ‘Jack of all Trades’ pumpkin seeds. And if you choose to direct sow outdoors, start your pumpkins off under cloches to give them the best start. Wherever you choose to start them, it's best to sow two seeds per hole and thin the weakest plant out later on. However if you’re short of indoor space, you may prefer to wait until the soil has warmed up in late May or early June and sow your seeds directly outdoors. In cooler areas pumpkins can be sown indoors from April to mid May for transplanting outside later, when temperatures have risen. Pumpkins require warm daytime temperatures of between 18 - 30C (68F) and prefer a minimum night temperature of 16C (61F), at least until they’re planted out. Image: Pumpkin 'Zombie' F1 Hybrid from Thompson & Morgan 1967 Nov 42(11):1587–1595.Ideal for Halloween, these warty pumpkins make an excellent display Gluconeogenesis from amino acids in germinating castor bean endosperm and its role in transport to the embryo. Transport of amino acids to the maize root. Compartmentation of organic acids in corn roots I. Amino Acid Metabolism in Young Pea Seedlings. Ornithine, Citrulline, and Arginine Metabolism in Watermelon Seedlings. Effects of Aging and Temperature on Respiratory Metabolism of Green Leaves. The amino acid content of the proteins of barley grains. Association of the glyoxylate cycle enzymes in a novel subcellular particle from castor bean endosperm. Links to PubMed are also available for Selected References. Get a printable copy (PDF file) of the complete article (890K), or click on a page image below to browse page by page. Full textįull text is available as a scanned copy of the original print version. The experiments showed that an extensive conversion of arginine carbon into other amino acids did not occur. By 96 hr 50% of the administered label occurred as 14CO 2 and it appeared that arginine was metabolized, through glutamate, by the citrio acid cycle in the cotyledons. The label in protein was stable in the axis tissue. Only 25% of the label incorporated into protein by 1.5 hr remained after 96 hr. The amount of arginine incorporated into cotyledonary protein show that synthesis and turnover were occurring at rapid rate. Time course studies showed that arginine was extensively metabolized and the labeling patterns suggest that different pathways were in operation in the axis and cotyledons. Little 14C was in sugars and it appeared that arginine was the primary translocation product. The cotyledons of 25 day old plants contained 60% of the administered 14C as unmetabolized arginine. At most, 25% of the 14C was transported from the cotyledon to the axis tissue and the amount of this transport decreased with increasing age of the seedlings. The metabolism of arginine by etiolated pumpkin ( Cucurbita moschata) seedlings was studied over various time and age intervals by injecting arginine-U- 14C into the cotyledons.
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